CN1728721A - Adaptation method in use for syncretizing Internet and Ethernet - Google Patents

Adaptation method in use for syncretizing Internet and Ethernet Download PDF

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CN1728721A
CN1728721A CN 200410060648 CN200410060648A CN1728721A CN 1728721 A CN1728721 A CN 1728721A CN 200410060648 CN200410060648 CN 200410060648 CN 200410060648 A CN200410060648 A CN 200410060648A CN 1728721 A CN1728721 A CN 1728721A
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邓里文
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Abstract

New layer of data link layer protocol - data link procedure (DLP) is introduced between IP of network layer and MAC sub layer of Ethernet in the invention to realize syncretizing adaptation between Internet and Ethernet in order to overcome shortage of current adaptation technique. The method possesses features are: high efficiency of forwarding IP packets, safety and reliability, flux engineering capability, 50 ms protected rearrangement function, realizing direct exchange of Ethernet interfaces and realizing compatibility between 1Pv4 and IPv6 networks and compatibility to packet voice network. Using safety mechanism, network control management mechanism, flow management mechanism provided by DLP realizes safety management, control management and flow management for IP network. The method makes current IP network transits to united telecom public network in next generation smoothly.

Description

A kind of adaptation method that is used for internet and Ethernet fusion
Technical field
The data that the present invention relates to the internet transmit the field, it is a kind of adaptation method that is used for Internet Protocol (english abbreviation is IP) and Ethernet fusion, be specially a kind of how at the Ethernet (Ethernet that comprises IEEE 802.3 definition of all speed of IEEE 802.3 definition, the Fast Ethernet of IEEE 802.3u definition, the 10G Ethernet of the gigabit Ethernet of IEEE 802.3z definition and IEEE 802.3ae definition) goes up the method that transmits the internet, be mainly used in various routers (core or high-end switch router, edge or converge switch router, insert switch router), various senior middle schools low side Ethernet switch based on grouping (bag) exchange, multi-service transport platform (english abbreviation is MSTP), user side integrated access equipment and any the interconnect equipment relevant with the internet.
Background technology
According to interrelated data, the adaptation method of realizing internet and Ethernet at present is for mapping directly to the IP bag in MAC (MAC is the english abbreviation of the medium access control) frame of Ethernet, and the pass-through mode that wraps in the ethernet network as for IP has two kinds:
(1) adopt ethernet address resolution protocol (english abbreviation is ARP) that certain binding is reached in IP address and ethernet mac address, utilize two layers ethernet mac address exchange to realize the forwarding that IP wraps in Ethernet, too the net Layer 2 switch mainly adopts this mode to transmit the IP bag;
(2) directly transmit the IP bag at three layers according to the IP address, the Ethernet three-tier switch adopts this mode to realize the forwarding of IP bag.
In recent years, along with popularizing of computer technology, computer network is that the application of internet just progressively is penetrated into all trades and professions, make the mankind progressively enter informationized society, the internet in the application of modern society life various aspects more and more widely, the internet is also changing people's the life and the mode of thinking in very big convenient people.Unspecial during the initial design internet for designing a kind of transmission technology in the internet, on the contrary, one of its target is to shield various physical layer details, on the IP of network layer, can realize the interconnected of different physical networks, and the initial main purpose of the designer of internet is a kind of network that can transmit data such as text rather than real time business such as speech of design, this network using be the load mode of doing one's best, therefore this network does not have service quality to guarantee, and the internet must rely on other network particularly telecommunications network could form a global network.On the other hand, Ethernet is present a kind of local area network technology of in the world main flow, the initial main application in internet is formed local area network (LAN) by some computers, and make the local area network (LAN) that is distributed in various places can be interconnected by relevant technology, make different local computer resources can realize sharing like this.Along with development of Internet, Ethernet its speed on the one hand progressively improves, from the 10Mbps Ethernet develop into Fast Ethernet (100Mbps), again to gigabit Ethernet, develop into the 10G Ethernet again, on the other hand Ethernet also from local area network (LAN) to metropolitan area network, wide area network and the development of broadband access network aspect.
But, different network applications is also different to the requirement of network, because the Design Orientation of Ethernet own is a kind of local area network technology, this local area network (LAN) is a kind of shared network, but telecommunications access network and key metropolitan area network have significantly different to the requirement of network with local area network (LAN), therefore cause Ethernet adaptation method of existing internet and Ethernet fusion when Access Network and the expansion of metropolitan area network aspect to have some defectives and deficiency, these problems mainly show:
(1) there are not authentication and billing function; owing to orientated a kind of shared local net network when existing Ethernet designed originally as; this shared network is mainly used in enterprise; school or government organs etc.; in this network inner anyone can access network; need not to carry out authentication and give each user the processing of chargeing; so do not have authentication in the method that IP and Ethernet merge now; functions such as charging; but in case it is used for Access Network; authentication and accounting management are exactly a primary problem; because this is related to the service income of operator; operator can only use the principle of whose paying to charge according to whom; can not first use, second is paid.
(2) existing adaptation method lacks necessary network management control function; particularly there is not the network protection switch function; because existing Ethernet (except the 10G Ethernet) itself is a kind of local area network technology; network control and management aspect function ratio a little less than; particularly there is not network protection switch function (as 50 milliseconds of protection switch functions); and IP network also belongs to a kind of transmission network of doing one's best; itself there is not any network management control function yet; therefore the result of the simple superposition of these two kinds of network technologies is that whole network lacks necessary network control management function; particularly lack the network protection switch function; in addition; what IP network adopted is to rely on Routing Protocol that the IP bag is transmitted processing; in case break down; existing adaptation method can only rely on IP network to recomputate route; this may cause packet loss on the one hand; if IP carries importantly important real time business such as real-time voice service on the other hand; because the switching time reality of IP network in seconds, therefore be difficult to satisfy the requirement of real time business.
(3) because IP network adopts is that two big class Routing Protocols are that Interior Gateway Protocol and Exterior Gateway Protocol realize the Route Selection that IP wraps, this mode does not have the traffic engineering ability, even may cause having between two nodes multilink to connect, but IP network may all be forwarded to the IP bag on the link and transmit, it is congested to cause this link to produce, thereby cause packet loss, and this moment, other link was in idle condition.
(4) because above-mentioned adaptation method does not carry out any professional classification to the upper-layer service of carrying, and everybody is the same, all has identical priority, cause this IP network not have service quality to guarantee.
(5) because the adaptation method that existing internet and Ethernet merge is IP to be sealed to install in the ethernet mac frame simply, what adopt is point-to-point connection processing mode, if adopt three layers of exchange, must handle each IP bag so, if with two layers of exchange of Ethernet then must handle to each ethernet mac frame, this processing mode complexity of one side, forward efficiency is low, amount of calculation is big, if network is an all-optical network on the other hand, must carry out a series of light-electrical-optical conversion process so, can not realize full light exchange, particularly for the dense wavelength division multiplexing system that adopts the ethernet frame structure.
(6) adopt the IP network of the adaptation method of existing internet and Ethernet can say without any safety.As everyone knows, present IP network is without any fail safe, and the IP packet can be by intercepting, replace because above-mentioned adaptation method only is that the IP bag is mapped in the ethernet mac frame payload field, these adaptation methods to the safety that improves IP network without any help.
(7) adaptation method of existing internet and Ethernet fusion can be used for IPv4 and IPv6, promptly can be implemented in and directly transmit IPv4 and IPv6 on the Ethernet, but because IPv4 and IPv6 are incompatible, and owing to existing adaptive mode need be handled each IP bag in network layer, because IPv4 and IPv6 network can not be compatible, make existing adaptation method can not realize the compatibility of IPv4 and IPv6 network.
(8) adopt in the network of above-mentioned adaptation method, traditional voice service is what to be separated with the IP network business, and generally believe that now following unified public network will adopt packet-switch technology, can realize that the multi-service that comprises speech, data and video transmits simultaneously, how these adaptation methods are for realizing the voice service packetizing, and the aspects such as fusion that make packetized voice business and IP network are without any help.
Summary of the invention
The deficiency that the objective of the invention is the adaptation method that merges at existing Internet Protocol (english abbreviation is IP) and Ethernet designs a kind of novel IP and the adaptive method of Ethernet; can realize the directly adaptive of IP and Ethernet on the one hand; IP can directly be transmitted on ethernet network; can solve the defective and the deficiency of IP network in above-mentioned IP and the Ethernet adaptation method in addition on the one hand again; for IP network provides a kind of high speed; the efficient mechanism of transmitting the IP bag; for IP network provides the quick protective switch function; the traffic engineering ability is provided; network security capability is provided; make IPv4 and the intercommunication of IPv6 Web-compatible; can support the Ethernet of whole speed ranges from low to high; also be particularly suitable for using the packet switch interface of light; can realize direct sunshine wavelength exchange based on the various speed of Ethernet; can realize transmitting the compatibility of network with following packet voice; make present networks and existing voice network be smoothly transitted into the unified carrier class public network that adopts packet-switch technology of future generation; realize the unification of telecommunication transmission and exchange, so great reduction network struction cost.
The objective of the invention is to reach: by between the IP of network layer and ethernet mac sublayer, introducing the novel data link layer protocol of one deck---data link rules (english abbreviation is DLP) in data link layer by following measure; utilize this novel data link layer protocol to realize the fusion of internet and Ethernet on the one hand; solve the deficiency and the defective of the network existence of existing internet and Ethernet fusion; utilize this agreement to realize the directly adaptive of internet and other various physical layer facilities on the other hand; and packet voice business and packet video business and various physical layer facilities is directly adaptive; realize telephone network; the integration of three networks of internet and TV network; in the unified whole communication network of data link layer; make present networks be smoothly transitted into unified carrier class public network of future generation; IP operation only is the part of the upper-layer service of this new types of data link layer protocol carrying; with the data link layer protocol of this new types of data link layer protocol as the fusion that realizes Internet Protocol (english abbreviation is IP) and Ethernet; between this new types of data link layer protocol layer and network layer communicate by letter and this new types of data link layer protocol (DLP) layer and ethernet mac sublayer between communicate by letter and all realize by primitive; utilize the classification of this new types of data link layer protocol definition; the destination address sign indicating number of compatible existing telephone number system and source address sign indicating number are represented the purpose IP address of IP bag and the forwarding equivalence class of source IP address; the forwarding equivalence class that utilizes IP bag promptly replaces the three layers of IP address to realize the two layers of forwarding and the exchange of IP bag as the destination address sign indicating number of described new types of data link layer protocol and source address sign indicating number as the Layer 2 data link layer address; the security mechanism of utilizing this new types of data link layer protocol to provide guarantees that IP (IPv4 and IPv6) wraps in the safety in the network transport process; send miscellaneous service data with the Frame that defines in the described new types of data link layer protocol from the upper strata; the control frame of definition is realized the Topology Discovery that comprises of network; 2 layers of protection are switched; fault management; configuration management and performance management etc. are in interior network control management, and the traffic management frame of definition is realized the traffic engineering management of network.
According to method provided by the invention; it is characterized in that; by defining a novel data link layer protocol---data link rules (english abbreviation is DLP) realize existing telephone network; the integration of three networks of data communication network and video (TV) network; in the unified whole communication network of data link layer; make existing telephone network; IP data communications network and video network are smoothly transitted into unified carrier class public network of future generation; IP operation is as just the part of the upper-layer service of this new types of data link layer protocol (DLP) carrying; the IP that realizes network layer with this new types of data link layer protocol is directly adaptive with the various physical layer facilities that comprise Ethernet; the service that this new types of data link layer protocol layer (DLP layer) provides for network layer is adopted and is not confirmed formula information transfer service pattern; the data that send are not done any affirmation formula operation; this new types of data link layer protocol is passed through " data link-data-request (the English DL_DATA.request of being) " for the service that network layer provides; " data link-data-indication (English is DL_DATA.indication) "; " data link-control-request (English is DL_CONTROL.request) "; 4 primitive such as " data link-control-indication (English are DL_CONTROL.indication) " are realized; realize by two the primitive MA_DATA.request (MAC request of data) and MA_DATA.indication (indication of the MAC data) primitive of IEEE 802.3 standard definitions for the service that this new types of data link layer protocol layer provides the ethernet mac sublayer; at transmitting terminal; when the IP bag needs to send; call DL_DATA.request (data link-data-request) primitive; this primitive comprises series of parameters; these parameters are used for determining the value of each field of DLP frame header and payload field; at receiving terminal; when the DLP client entity will receive data; the DLP entity activates DL_DATA.indication primitive; the value of the accepting state of this primitive indication incoming frame and each field of input DLP frame; if network layer needs DLP that network control function is provided; call data link-control primitive: " data link-control-request (DL_CONTROL.request) " and " data link-control-indication (DL_CONTROL.indication) " primitive; these two primitive comprise a series of command code and parameter; can provide network control function by these two primitive; as discovering network topology; 2 layers of protection are switched; configuration management; fault management; performance management etc.; at transmitting terminal; need be when the DLP layer be sent to media access control sublayer as data; the DLP entity activates MA_DATA.request (MAC request of data); to when sending to the DLP entity, media access control sublayer activate MA_DATA.indication (indication of MAC data) primitive at receiving terminal as data, each primitive semantic as follows:
(1)DL_DATA.request(
DestinationAddressCode，
SourceAddressCode，
DLPServiceData，
FrameLength，
ServiceType，
NetworkTopology，
Security，
FrameSequenceNumber，
SPI) DL_DATA.request primitive contains 9 parameters, the connotation of each parameter is respectively: DestinationAddressCode represents the destination address sign indicating number, this parameter is determined the forwarding equivalence class that IP wraps according to the purpose IP address that sends in the IP packet head, with generating the destination address code word segment value that sends in the DLP frame header, SourceAddressCode represents the source address sign indicating number, this parameter is used for determining the forwarding equivalence class that IP wraps according to the source IP address that sends in the IP packet head, with generating the source address code word segment value that sends in the DLP frame header, the client signal that DLPServiceData indicates to send is an entire I P bag (grouping), send payload word segment value in the DLP frame with generating, the total length of the definite DLP frame that will send of FrameLength parameter, the type of service of ServiceType parameter indication DLP client layer signal, send business type field value in the DLP frame header with generating, the Security parameter indicates whether the DLP client signal is encrypted, authentication processing, the DLP entity determines to send security word segment value in the DLP frame header with it, the number of frames (FSN) of the data link layer protocol frame that the indication of FrameSequenceNumber parameter will send, the DLP entity determines to send FSN field value in the DLP frame header with it, the network topology of NetworkTopology parameter indication DLP node, the DLP entity determines to send topological field value in the DLP frame header with it, SPI (SPI is the english abbreviation of Security Parameter Index) parameter is an option, if be used for determining the IP bag is encrypted, the security association of setting up at the communication two ends during authentication processing, be used for determining Security Parameter Index (SPI) field value in the DLP frame
(2)DL_DATA.indication(
DestinationAddressCode，
SourceAddressCode，
DLPServiceData，
ServiceType，
FrameLength，
ReceptionStatus，
NetworkTopology，
Security，
FrameSequenceNumber，
SPI)
DL_DATDA.indication primitive parameter semantic as follows: DestinationAddressCode represents the destination address sign indicating number, this parameter is determined the destination address code word segment value in the input DLP frame header, SourceAddressCode represents the source address sign indicating number, this parameter is determined the source address code word segment value in the input DLP frame header, the DLPServiceData parameter is determined input DLP frame payload word segment value, the accepting state of ReceptionStatus parameter indication incoming frame, if the FCS of incoming frame (Frame Check Sequence) field does not make a mistake, the value of ReceptionStatus is FCS_ERROR_FREE, otherwise, if incoming frame makes a mistake, then the ReceptionStatus value is FCS_ERROR, the business type field value of ServiceType parameter indication input DLP frame, the FrameLength parameter is determined the total length of input DLP frame, whether Security parameter indication input DLP frame is encrypted, authentication processing, the Security field value of its indication input DLP frame, the FrameSequenceNumber parameter is indicated the FSN of described incoming frame, topological field value in the NetworkTopology parameter indication input DLP frame, the SPI parameter is used to refer to the Security Parameter Index field value of described incoming frame
The form of (3) data link-control-request (DL_CONTROL.request) primitive data link-control-request (DL_CONTROL.request) primitive is a DL_CONTROL.request (command code; solicit operation ordered series of numbers table); wherein command code comprises Topology Discovery request (the English TOPOLOGY_DISCOVERY_REQ of being); 2 layers of protection switching request (English is L2PS_REQ); configuring request (English is CONFIGURATION_REQ); fault inquiry request (English is FAULT_INQUIRY_REQ); performance queries request (English is PERFORMANCE_INQUIRY_REQ) etc.; the concrete operations ordered series of numbers table of each command code is as follows: the solicit operation number of Topology Discovery request (TOPOLOGY_DISCOVERY_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of Topology Discovery claim frame payload datas etc.; the solicit operation number of 2 layers of protection switching request (L2PS_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of 2 layers of protection switching request frame payload datas etc.; the solicit operation number of configuring request (CONFIGURATION_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of configuring request frame payload datas etc.; the solicit operation number of fault inquiry request (FAULT_INQUIRY_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of fault inquiry claim frame payload datas etc.; the solicit operation number of performance queries request (PERFORMANCE_INQUIRY_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of performance queries claim frame payload datas etc.; destination address sign indicating number in each operand; the source address sign indicating number; type of service; the isoparametric implication of number of frames is the same with data link-data-request primitive corresponding parameters implication
The form of (4) data link-control-indication (DL_CONTROL.indication) data link-control-indication (DL_CONTROL.indication) primitive is a DL_CONTROL.indication (command code; the tabulation of indication operand); wherein command code comprises Topology Discovery response indication (the English TOPOLOGY_DISCOVERY_RESPONSE_IND of being); response indication (the English L2PS_RESPONSE_IND of being) is switched in 2 layers of protection; configuration response indication (English is CONFIGURATION_RESPONSE_IND); fault inquiry response indication (English is FAULT_INQUIRY_RESPONSE_IND); performance queries response indication (English is PERFORMANCE_INQUIRY_RESPONSE_IND) etc.; the concrete operations ordered series of numbers table of each command code is as follows: the indication operand of Topology Discovery response indication (TOPOLOGY_DISCOVERY_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of Topology Discovery response frame payload datas etc.; 2 layers of protection are switched response and are indicated the indication operand of (L2PS_RESPONSE_IND) command code to comprise the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of response frame payload datas etc. are switched in 2 layers of protection; the indication operand of configuration response indication (CONFIGURATION_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of configuration response frame payload datas etc.; the indication operand of fault inquiry response indication (FAULT_INQUIRY_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of fault inquiry response frame payload datas etc.; the indication operand of performance queries response indication (PERFORMANCE_INQUIRY_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of performance queries response frame payload datas etc.; destination address sign indicating number in each operand; the source address sign indicating number; type of service; the isoparametric implication of number of frames is the same with data link-data-indication corresponding parameters implication
(5) MA_DATA.request (MAC request of data), the semanteme of this parameter is definite by IEEE 802.3 standards,
(6) MA_DATA.indication (indication of MAC data), the semanteme of this parameter is determined by IEEE 802.3 standards.
According to method provided by the invention, it is characterized in that, it is adaptive to realize that with described new types of data link layer protocol (DLP) internet and Ethernet merge, physical layer is Ethernet physical interfaces existing and whole speed ranges that may develop future, support the Ethernet of whole speed ranges from low to high, can realize the direct sunshine wavelength exchange based on all kinds of Ethernet speed optical wavelength, wherein all kinds of Ethernet physical parameters are as shown in table 1:
All kinds of Ethernet physical parameters of table 1.
The ethernet type type Bit rate
IEEE 802.3 Ethernets 10 mbit/
IEEE 802.3u Fast Ethernet 100 mbit/
The 10/100Mbps self adaptation 10/100 mbit/, self adaptation
IEEE 802.3z gigabit Ethernet 1000 mbit/
IEEE 802.3ae 10G Ethernet 10G bps
According to method provided by the invention; it is characterized in that defining a novel data link layer protocol---data link rules (DLP) realize speech; the integration of three networks of data (IP) and video; it is that the specific phase mutual correlation relation (constituting certain specific coding relation) that relies on this data link layer protocol (DLP agreement) frame to begin the bit information formation in the certain-length most realizes that the frame of described new types of data link layer protocol frame (DLP frame) is delimited; (English is Frame Length to frame length of definition in described new types of data link layer protocol (DLP agreement) frame; FL) field is used for identifying with the byte form total length of described new types of data link layer protocol frame; (English is FrameLength Check to define a frame length verification; FLC) field is used for frame length field is carried out verification and carried out single-bit error or this particular verified encoding relation that 2 bit mistake correction process utilize these two field bit to constitute simultaneously realizes that the frame of described new types of data link layer protocol (DLP) frame delimits; (English is Service Type to define a type of service; ST) field is used for identifying the type of service of payload field encapsulation; thereby realize multiple services encapsulation; the business that regulation is different has different priority simultaneously; (English is Networks Topology to define a topological field; NT) come the topological classification of marked network node; whether define a safety (Security) field is used for identifying and the payload of encapsulation is encrypted; authentication processing; (English is Destination Address Code to the destination address sign indicating number of a classification of definition; DAC) and the source address sign indicating number (English is Source AddressCode; SAC) identify the two layers of destination address and the source address of encapsulation business data packet; (English is Frame SequenceNumber to define a number of frames; FSN) field is used for the transmission sequence of identification frames; (English is Extension Header to define an extension header; EH) field identifies and whether payload is carried out extension process; defining a filling length field is used for representing to fill if desired processing as payload is authenticated with the byte form; the length of filling during encryption; (English is Security Parameter Index to define a Security Parameter Index; SPI) identify the security association that the communication two ends were set up when the data authenticated encryption handled; define a payload (the English Payload of being) field and encapsulate miscellaneous service from the upper strata; (English is Frame Check Sequence to define a Frame Check Sequence; FCS) field comes described new types of data link layer protocol (DLP) frame is carried out verification; definition one class Frame sends the miscellaneous service data from the upper strata in described new types of data link layer protocol frame; definition traffic management frame is realized the traffic engineering management of network; the definition control frame is realized the Topology Discovery that comprises of network; 2 layers of protection are switched; fault management; configuration management and performance management etc. are in interior network control management; these three kinds of dissimilar frames are identified by the type field in the described new types of data link layer protocol frame; specific as follows: definition frame length (english abbreviation is FL) field length is 16 bits; definition frame length check field (english abbreviation is FLC) length is 15 bits; make FL and FLC field bit constitute BCH (31; 16) sign indicating number (BCH is the english abbreviation of BCH Bose-Chadhuri-Hocquengham's sign indicating number); this relation of utilizing the DLP frame realizes the frame demarcation of DLP frame and single-bit or 2 bit mistakes that FL occurs is carried out correction process; the generator polynomial of BCH (31,16) sign indicating number is G (x)=x 15+ x 11+ x 10+ x 9+ x 8+ x 7+ x 5+ x 3+ x 2+ x+1, initialization value are 0, here x 15Corresponding highest significant position (english abbreviation is MSB), x 0Corresponding least significant bit (english abbreviation is LSB), the specific coding that the DLP frame utilizes DLP frame front 31 bits (FL field and FLC field) to constitute concerns the demarcation that realizes the DLP frame, the DLP frame is delimited process and is realized according to finite state machine, finite state machine comprises three states: search (English is HUNT) attitude, presynchronization (English is PRESYNC) attitude, (English is SYNC) attitude synchronously, the finite state machine workflow diagram is as follows: (1) is in the search attitude, DLP handles 31 bits that receive is pursued FL and the FLC relation that correct format is sought in the bit search, in this state, BCH code does not have the function of the single-bit error of FL field and FLC field or 2 bit mistakes being carried out correction process, in case in 31 bits that receive, find correct candidate FL and FLC matching relationship value, can suppose and determine a correct DLP frame, receive presynchronization (the English PRESYNC of the being) state that enters of handling, (2) in the PRESYNC attitude, DLP handles by searching for frame by frame to handle and realizes the demarcation of DLP frame, pursue FL and the correct matching value of FLC that the bit search is found according to previous step, can suppose and search a correct DLP frame, can determine the FL and the FLC field value of next frame then according to each field relation of this frame, and determine according to their relation whether they mate, and then next frame, in case determine that continuously (DELTA is a parameter to DELTA, it be one greater than 0 positive integer) individual correct DLP frame, DLP receives to handle and enters synchronous state, otherwise, if the FL of a frame and FLC field value do not match subsequently, enter the search attitude, at this moment, BCH code does not have the function of the single-bit error of FL field and FLC field or 2 bit mistakes being carried out correction process, enter synchronous state from the search attitude and need search DELTA+1 correct DLP frame continuously, (3) at synchronous state, DLP handles the beginning that can determine next DLP frame by the FL of a frame and FLC field relation, can realize the parsing of a frame one frame then, FLC has single-bit error or 2 bit mistake error corrections in this state, if a plurality of bits (surpassing 2 bit mistakes) mistake takes place, then frame is delimited and was lost efficacy, framing is handled and is entered the search attitude, and send client server Signal Fail (english abbreviation is SSF) indication for client's adaptation processing, (4) the empty frame of DLP participates in frame and delimits processing, and abandon the sky frame subsequently, it is relevant with the DELTA value that the DLP frame is delimited the strong property of the key of handling, the present invention advises that the DELTA value is 1, the reserved field that length of definition is 1 bit behind FLC gives over to and uses (being set to 0) in the future always, definition business type field length is 8 bits, can discern 2 altogether 8=256 kinds of types of service, wherein highest significant position is that what represented in 0 o'clock to encapsulate is the general data business (as common IP data service) of low priority, highest significant position is that the business of representing the encapsulation of DLP payload field at 1 o'clock is that the real time business of high priority is (as phone, real-time video traffic), the priority of DLP Business Processing order from high to low is followed successively by: control frame＞traffic management frame＞real time business (real-time speech, video or other real time business)＞data service (IPv4/IPv6), the business of high priority is at first handled in the formation of DLP network processes, the usage of business type field is as shown in table 2
The usage of table 2. business type field
The binary value of business type field Usage
00000000～00000011 Keep
00000100 The IPv4 data
00000101 The mobile IPv 4 data
00000110 The IPv6 data
00000111 Moving IPv 6 data
00001000～00111111 Keep and give other data, services
01000000 The 10Mbps Ethernet
01000001 The 100Mbps Ethernet
01000010 The 10/100Mbps Ethernet
01000011 Gigabit Ethernet
01000100～01111111 Keep
10000001 Control frame
10000010 The traffic management frame
10000011 Real-time fixedly local call (local telephone) business
10000100 Real-time fixedly National calls business
10000101 Real-time fixedly international long-distance telephone business
10000110 In real time fixing local video telephone (local telephone) business
10000111 Real-time fixedly national distance visual telephone service
10001000 Real-time fixedly international long-distance visual telephone service
10001001 Landline telephone is called out local (local telephone) business that moves in real time
10001010 Landline telephone is called out mobile National calls business in real time
10001011 Landline telephone is called out international mobile long-distance telecommunications service in real time
10001100 Landline telephone is called out local mobile video telephone business in real time
10001101 Landline telephone is called out mobile national distance visual telephone service in real time
10001110 Landline telephone is called out the international long-distance visual telephone service that moves in real time
10001111 Move domestic voice service in real time
10010000 Move international voice service in real time
10010001 Move domestic visual voice service in real time
10010010 Move international visual voice service in real time
10010011 Real-time video traffic (broadcast type TV)
10010100 Real-time video traffic (unicast type TV)
10010101 Real time business based on IPv4
10010110 Real time business based on IPv6
10010111 Real time business based on mobile IPv 4
10011000 Real time business based on mobile IP v 6
10011001 G.702PDH circuit emulation service: asynchronous circuit 1544 kilobits/second
10011010 G.702PDH circuit emulation service: asynchronous circuit 2048 kilobits/second
10011011 G.702PDH circuit emulation service: asynchronous circuit 6312 kilobits/second
10011100 G.702PDH circuit emulation service: asynchronous circuit 8448 kilobits/second
10011101 G.702PDH circuit emulation service: asynchronous circuit 34368 kilobits/second
10011110 G.702PDH circuit emulation service: asynchronous circuit 44736 kilobits/second
10011111 G.702PDH circuit emulation service: synchronous circuit 1544 kilobits/second
10100000 G.702PDH circuit emulation service: synchronous circuit 2048 kilobits/second
10100001 G.702PDH circuit emulation service: synchronous circuit 6312 kilobits/second
10100010 G.702PDH circuit emulation service: synchronous circuit 8448 kilobits/second
10100011 G.702PDH circuit emulation service: synchronous circuit 34368 kilobits/second
10100100 G.702PDH circuit emulation service: synchronous circuit 44736 kilobits/second
10100101 G.702PDH circuit emulation service: 139264 kilobits/second
10100111 G.707SDH circuit emulation service: C-11,1648 kilobits/second
10101000 G.707SDH circuit emulation service: C-12,2224 kilobits/second
10101001 G.707SDH circuit emulation service: C-2,6832 kilobits/second
10101010 G.707SDH circuit emulation service: C-3,48384 kilobits per seconds
10101011 G.707SDH circuit emulation service: C-4,149760 kilobits per seconds
10101100 G.707SDH circuit emulation service: VC-11,1664 kilobits per seconds
10101101 G.707SDH circuit emulation service: VC-12,2240 kilobits/second
10101110 G.707SDH circuit emulation service: VC-2,6848 kilobits/second
10101111 G.707SDH circuit emulation service: VC-3,48960 kilobits/second
10110000 G.707SDH circuit emulation service: VC-4,150336 kilobits/second
10110001 G.707SDH circuit emulation service: TU-11,1728 kilobits per seconds
10110010 G.707SDH circuit emulation service: TU-12,2304 kilobits per seconds
10110011 G.707SDH circuit emulation service: TU-2,6912 kilobits per seconds
10110100 G.707SDH circuit emulation service: TU-3,49152 kilobits per seconds
10110101 G.707SDH circuit emulation service: AU-3,50304 kilobits per seconds
10110110 G.707SDH circuit emulation service: AU-4,150912 kilobits per seconds
10110111 G.707SDH circuit emulation service: STM-0,51480 kilobits/second
10111001 G.707SDH circuit emulation service: STM-1/OC-3c, 155520 kilobits/second
10111010 G.707SDH circuit emulation service: STM-4OC-12c, 600080 kilobits/second
10111011 G.707SDH circuit emulation service: STM-16 ,/OC-48c 2488320 kilobits/second
10111100 DVB, MPEG-1 transmits bit stream
10111101 DVB, MPEG-2 transmits bit stream
10111110 DVB, MPEG-4 transmits bit stream
10111111～11111111 Keep and give other real time business
Defining topological field length is 4 bits; wherein binary value " 0001 " is represented bus structures; binary value " 0010 " expression star structure; binary value " 0011 " expression tree topology; binary value " 0100 " expression ring topology; binary value " 0101 " expression grid (Mesh) topological structure; other values keep to give in the future to be used; for ring topology and network topology; the invention provides 50 milliseconds of protection switch functions; definition secure fields length is 4 bits; wherein binary value " 0000 " expression is not carried out any encryption to upper-layer service; authentication processing; binary value is represented carry out encryption from the business datum on upper strata for " 0001 "; binary value " 0010 " expression is carried out authentication processing to the business datum from the upper strata; binary value " 0100 " expression is to encrypting and authentication processing from the business datum on upper strata; other values keep in the future to be used; definition destination address code length is 64 bits; definition source address code field length is 64 bits; the destination address sign indicating number adopts identical hierarchy with the source address sign indicating number; all (English is Country Code by national code; CC); (English is National Region Code to domestic area code; NRC); (English is Node Area Code to station code; NAC) and personal code work (English is User Code; UC) 4 fields are formed; each field length is 16 bits; wherein national code is represented the first order forwarding label of upper-layer service; domestic area code is represented the second level forwarding label of upper-layer service; station code is represented the third level forwarding label of upper-layer service; personal code work is represented the fourth stage forwarding label of upper-layer service; definition header field length is 8 bits; wherein binary value does not have extension header for " 00000000 " expression; other values keep in the future to be used; it is 8 bits that length field length is filled in definition; be used for filling the length that the DLP payload field is filled when handling with byte form sign; definition frame sequence-number field length is 16 bits; be used for the DLP frame that sends is carried out sequence mark; this field value carries out sequence mark since 0 to the DLP frame that sends, up to maximum, if FSN reaches maximum; send processor and remove the value of register; and count again since 0, send to guarantee that the DLP frame can be transmitted according to correct order; receive and handle, FSN also provides anti-playback simultaneously; definition Security Parameter Index field length is 16 bits; this field is optionally, and its value is arbitrarily, is used in combination the security association that identifies uniquely under this DLP frame with DLP destination address sign indicating number and (Englishly is Security Association; SA); wherein the SPI value is that 0 reservation is given local; specific implementation is used, and metric 1～255 is kept by IANA (IANA is the english abbreviation of Internet Assigned Numbers Authority) and to give use in the future, and other values are determined according to the encrypting and authenticating algorithm of employing by communicating pair; definition payload field length is 0～65535 byte; be used for encapsulating the entire I P bag from network layer, definition padding data (this field is optional) field length is 0～255 byte, and occurrence is relevant with the encrypting and authenticating algorithm of employing; its value is determined by the encrypting and authenticating algorithm; define the verify data that generates when an authentication data field is deposited authentication processing, authentication data field is optionally, and its value is relevant with the identifying algorithm that adopts; its value is determined (generation) by concrete identifying algorithm; the definition frame verification sequence (Frame Check Sequence, FCS) field length is 32 bits, is used for the payload of part header fields content in the data link layer protocol frame (DLP frame) and encapsulation is carried out verification; FCS verification scope comprises: first bit of business type field begins from the DLP frame; until the ending of DLP frame specifically comprises business type field; the topology field; secure fields; the destination address sign indicating number; the source address sign indicating number; extension header; fill length field; number of frames; the Security Parameter Index (if there is); payload; the padding data (if there is); field bit streams such as verify data (if there is) carry out checking treatment, and checking algorithm adopts the CRC-32 of 802.32002 editions definition of IEEE: generator polynomial is G (x)=x 32+ x 26+ x 26+ x 23+ x 22+ x 16+ x 12+ x 11+ x 10+ x 8+ x 7+ x 5+ x 4+ x 2+ x 1+ 1, here, x 32Corresponding MSB position, and x 0Corresponding LSB position is if DLP frame generation fcs error abandons the DLP frame that makes a mistake, if some field value can not be discerned, fcs error perhaps occurs, then think invalid data link layer protocol frame, invalid frame will be dropped, do not notify transmit leg, also do not produce any action, invalid frame comprises:
(1) the DLP frame of received frame generation fcs error (FCS does not match),
(2) received frame length is less than the frame of 30 bytes,
(3) frame that can not discern of business type field,
(4) frame that can not discern of other fields of header, if network layer does not have the IP bag to need to send, need fill processing at the DLP frame gap, promptly send empty frame, the purpose that sends empty frame is in order to regulate two internodal speed, empty frame sends to its adjacent nearest node from a node, neighbor node is not forwarded to any other place to it after receiving the sky frame, directly it is abandoned, do not notify transmit leg yet, the content of the empty frame of filling that sends at frame gap comprises frame length field, the frame length check field, length is the reserved field (always being set to 0) and the source address sign indicating number (station code and the personal code work field that include only in the source address sign indicating number amount to 4 bytes) of 1 bit, at transmitting terminal, the DLP frame that has encapsulated the IP bag is encapsulated into ethernet mac frame payload field must carries out scrambler before, before any processing of receiving terminal, at first carry out descrambling code to described new types of data link layer protocol frame (DLP frame), could be for further processing to the DLP frame behind the descrambling code, scrambler and descrambling code adopt motor synchronizing scrambler/descrambler, and its generator polynomial is G (X)=X 43+ 1.
According to method provided by the invention, it is characterized in that, comprise a destination address sign indicating number (the English Destination Address Code of being in the described new types of data link layer protocol, DAC) and the source address sign indicating number (English is Source Address Code, SAC) field, for IP data service (IPv4/IPv6), destination address sign indicating number in the described new types of data link layer protocol and source address sign indicating number are represented the purpose IP address of IP bag and the forwarding equivalence class of source IP address respectively, forwarding equivalence class with the IP bag is promptly realized forwarding and the exchange that IP wraps as the destination address sign indicating number and the source address sign indicating number replacement three layers of IP address of described new types of data link layer protocol as two layers data-link layer address, for the packet voice business, the destination address sign indicating number of described new types of data link layer protocol and source address sign indicating number are represented the interim identity card (number) of the expression user identity of the telephone number of both call sides or the appointment of network authentication center respectively, the destination address sign indicating number adopts identical hierarchy with the source address sign indicating number, all (English is Country Code by national code for complete destination address sign indicating number and source address sign indicating number, CC), (English is National Region Code to domestic area code, NRC), (English is Node Area Code to station code, NAC) and personal code work (English is User Code, UC) four parts are formed, the present invention defines the destination address sign indicating number and source address code field length is 64 bits (8 eight hytes), wherein the national code field length is 16 bits (2 eight hytes), be used for identifying certain service code of some countries or specific geographical area, CC is the first order forwarding label of corresponding IP bag, can there be one or more service code country or geographic area, as the voice service code, the video traffic code, IP operation code (IPv4 service code or IPv6 service code), the concrete national code value of related service is specified by relevant international standard mechanism such as ITU, the international area code of the IP operation national code that proposes for the present invention in can the existing telephone coding system also can be other values of other appointment, domestic area code field length is 16 bits, certain regional service code in the indication a state, NRC is the second level forwarding label of IP bag, concrete NRC value is distributed by the communication highest administration mechanism of this state, for this value of IP operation can be that national distance area code in the present phone number system also can be other values of other appointment, the station code field is 16 bits, identify the service code of certain network node, this yard is the third level forwarding label of IP bag, occurrence is specified by Virtual network operator or Internet service provider, the personal code work field length is 16 bits, indicate certain user's service code, this yard is the fourth stage forwarding label of IP bag, concrete UC value is specified by Virtual network operator or Internet service provider, adopting described new types of data link layer protocol (DLP) to realize which country the access point of the network that internet and Ethernet merge or convergent point belong to according to the purpose IP address that IP wraps, which area of this state, which node and which user's quaternary structure is determined the forwarding equivalence class of IP bag, and the destination address sign indicating number of this value as described new types of data link layer protocol (DLP) frame, the forwarding that wraps in the network of IP is subsequently determined by the destination address sign indicating number of described new types of data link layer protocol (DLP) frame, the high speed that substitutes three layers of purpose IP addresses realization IP packet in the IP network with two layers destination address sign indicating numbers is transmitted, during the described new types of data link layer protocol of forwarded frame, at first search the business type field in the described new types of data link layer protocol frame, determine professional priority by concrete type of service, be the national code in the destination address sign indicating number of searching in the described new types of data link layer protocol frame then, next is domestic area code, be station code once more, be personal code work at last, in case a certain item code of finding described new types of data link layer protocol frame is different with local node, network node is no longer handled destination address sign indicating number back field in the described new types of data link layer protocol frame, directly be forwarded to next node, the principle that described new types of data link layer protocol frame is transmitted is to adopt longest match principle, described can be to utilize IP routing protocol such as OSPF (the English OpenShortest Path First of being according to destination address sign indicating number decision route, OSPF) or Border Gateway Protocol (English is Border Gateway Protocol, BGP) dynamic routing table of Chan Shenging also can be that the traffic engineering of utilizing described new types of data link layer protocol to provide is come explicit configuration route.
According to method provided by the invention, it is characterized in that, described new types of data link layer protocol comprises that a cover security mechanism guarantees the safety of upper-layer service in the network transport process, concrete grammar is: (1) utilizes the forwarding equivalence class of IP bag (IPv4 or IPv6) to replace IP (IPv4 or IPv6) address to realize IP (IPv4 or IPv6) thereby the forwarding and the exchange of bag shield real IP (IPv4 or IPv6) address, (2) upper-layer service is encrypted and authentication processing, if desired the IP bag being carried out encrypting and authenticating handles, by a series of negotiation of two ends process of communicating by letter at needs, determine the cryptographic algorithm of employing, identifying algorithm, be provided with or exchange initialization password etc., consulting operations such as encrypting and authenticating algorithm and exchange initialization password can adopt the internet security internet key exchange (english abbreviation is IKE) related and IKMP (english abbreviation is ISAKMP) and RFC2409 definition of RFC2408 definition to realize, set up two security associations (English Security Association of being then at the two ends of communication, SA), and according to purpose IP address, the algorithms that adopt etc. are determined a Security Parameter Index (english abbreviation is SPI), this index value is added in the Security Parameter Index field in the described new types of data link layer protocol frame header, SPI is used for identifying the IP bag is encrypted, security association during authentication processing, the encrypting and authenticating algorithm that Security Parameter Index identifies security association uniquely and adopted with the destination address sign indicating number, simultaneously relevant parameter such as destination address sign indicating number, the IP address, the cryptographic algorithm that adopts, identifying algorithm, the initialization password, Security Parameter Indexs etc. add in the security association database, security association database has write down and security-related various data, it is 32 bits that the present invention defines the SPI field length, wherein decimal value " 0 " is used for node this locality, specific implementation is used, decimal value 1～255 is kept to using in the future by IANA, other values are used to identify security association, owing to encrypt, the different needs of identifying algorithm carries out some data and fills processing, the data of filling are positioned at after the payload field, and a length value of filling adds in the filling length field value, the verify data that authentication processing generates is positioned at after the padding data field, before the frame check field, utilize the number of frames field value in the described new types of data link layer protocol (DLP) that anti-reproducing function is provided, when carrying out encryption, the scope of encrypting comprises the entire I P bag from network layer, field contents such as padding data, the scope that authenticates when carrying out authentication processing comprises the filling length field, the number of frames field, the Security Parameter Index field, payload data (entire I P bag), field contents such as padding data.
According to method provided by the invention; it is characterized in that; described new types of data link layer protocol comprises that the perfect network control administrative mechanism of a cover realizes the Topology Discovery that comprises of IP (IPv4 or IPv6) network; 2 layers of protection are switched; the Link State indication; fault management; performance management; configuration managements etc. are in interior control and management; described network control management realizes by control frame; the present invention's definition represents that when the binary value of the business type field of described new types of data link layer protocol frame is " 10000001 " content that the encapsulation of described new types of data link layer protocol frame (DLP frame) payload field is carried is a network control management information; corresponding data link layer protocol frame is a control frame; control frame is realized Topology Discovery; the Link State indication; fault management; performance management; network control and management functions such as configuration management; for annular and network topology; control frame also provides a kind of mechanism that realizes 50 milliseconds of protection switch functions; control frame adopts TLV (Type-Length-Value; type-length-value) structure; type field length is 8 bits; be used for identifying the type of control frame; length field length is 8 bits; be used for representing the length of TLV structure intermediate value (Value) field with the byte form; what value (Value) field comprised control frame has particular contents such as related parameter; it is as shown in table 3 that the present invention defines in the control frame in the TLV structure usage of type field; what represent when wherein type field value is binary " 00010001 " that control frame carries is OSPF (OSPF is the english abbreviation of OSPF) Routing Protocol information; control frame carries the type field binary value is BGP (BGP is the english abbreviation of Border Gateway Protocol) Routing Protocol information for " 00010010 " expression; control frame carries the type field binary value is Signaling System 7(SS-7) (english abbreviation is SS7) information for " 00010011 " expression; what the type field binary value carried for " 00010100 " expression control frame is signaling information H.323; control frame carries the type field binary value is conversation initialized protocol (english abbreviation is SIP) signaling information for " 00010101 " expression; control frame carries the type field binary value is Media Gateway Control Protocol (english abbreviation is MGCP) signaling information for " 00010110 " expression; when being binary " 11111111 ", type field represents that control frame is the self-defining management control frame of manufacturer; the self-defining management function of manufacturer comprises that equipment manufacturers are the self-defining network management control function of network management control function and operator that home built relevant devices is added; its management data content is self-defined by manufacturer; but need to adopt the TLV structure; the number of frames value of described new types of data link layer protocol control frame is used for identifying the sequencing that control frame sends; realize that the described new types of data link layer protocol control information of sign sends the function of sequence successively; the payload information field of described new types of data link layer protocol control frame can comprise a plurality of control TLV information; the realization of chip of the present invention for convenience (is generally adopted 32 as present chip; requiring the control frame total length like this is the integral multiple of 32 bits); requiring the length of The whole control frame is the integral multiple of 32 bits; if the total length of originally described new types of data link layer protocol control frame is not the integral multiple of 32 bits; then fill processing with the byte that is 0 entirely behind control TLV, the length of filling identifies with the byte form with the filling length field of described new types of data link layer protocol control frame.
The usage of type field value in table 3. control frame (binary value)
The binary value of type field Usage
00000000 Keep
00000001 The Topology Discovery claim frame
00000010 The Topology Discovery response frame
00000011 Topology report frame
00000100 2 layers of protection switching request frame
00000101 Response frame is switched in 2 layers of protection
00000110 2 layers of protection switch status report frame
00000111 The configuring request frame
00001000 The configuration response frame
00001001 The configuration report frame
00001010 The fault inquiry claim frame
00001011 The fault inquiry response frame
00001100 The Trouble Report frame
00001101 The performance queries claim frame
00001110 The performance queries response frame
00001111 The performance report frame
00010000 WTR_Request (Wait-to-Restore claim frame)
00010001 Routing Protocol---OSPF
00010010 Routing Protocol---BGP
00010011 Signaling---Signaling System 7(SS-7) (english abbreviation is SS7)
00010100 Signaling---H.323
00010101 Signaling---conversation initialized protocol (SIP)
00010110 Signaling---Media Gateway Control Protocol (MGCP)
00010111～11111110 Keep
11111111 Manufacturer's self-defining dedicated network control and management frame
According to method provided by the invention; it is characterized in that; the network control administrative mechanism that described new types of data link layer protocol provides comprises Topology Discovery mechanism; whom Topology Discovery is used for finding out is the neighbor node of network node (DLP node) and the state of neighbor node; can find have what nodes to work on the ring with it for annular and network topology network node (DLP node); the realization of topology discovery function mainly is to rely on Topology Discovery claim frame (Topology_Discovery_Request frame); Topology Discovery response frame (Topology_Discovery_Responseframe) and topology report frame (Topology_State_Report frame) are realized; during installation of project stage or engineering operation; network node (DLP node; as node A) with the L2 address sign indicating number of this node as destination address periodically broadcast topology find that claim frame (Topology_Discovery_Request frame) is to other nodes (claiming that one of them is a Node B); the transmission cycle is by Topology Discovery timer (Timer_Topology_Discovery; it is programmable sending timing; default to 2 seconds) determine; all nodes (as Node B) that receive the Topology Discovery claim frame respond for node A by the Topology Discovery response frame; give node A the existence of Node B and state feedback thereof; node A adds contents such as other address of node sign indicating numbers that receive and corresponding work state in the topological address database of node A to; for annular and network topology; station code (NAC) the field value content that has artis to go up in each address of node sign indicating number according to ring is determined to encircle upward or the node sequence in the grid; if node A receives the identical operations content from Node B continuous 3 times; then think the Topology Discovery frame efficient in operation of node; relevant topological state content is write in the topological database of ingress; network node (DLP node) is reported the state of this node to other nodes (especially network management entity) with topology report frame; particularly for bus topology; star and tree-like this three class are not protected its topological state of node report of the topological structure of switch function owing to the topological structure reason; the present invention defines and represents when type field value is binary value " 00000001 " among the control frame TLV that control frame is the Topology Discovery claim frame; be the Topology Discovery response frame during binary value " 00000010 "; represent during binary value " 00000011 " that control frame is a topology report frame; the Topology Discovery claim frame; the value (Value field value) of Topology Discovery response frame and topology report frame all is two parameters; first is a node address; length is 8 bytes; second is the node operating state; length is 1 byte; the node operating conditions is as shown in table 4
Second parameter of table 4. Topology Discovery frame
The binary value of second parameter of Topology Discovery frame State
00000111～11111111 Keep
00000110 Forced Switch (Forced Switch, FS)
00000101 The physical signalling inefficacy (Physical Signal Fail, PSF)
00000100 The physical signalling degeneration (Physical Signal Degrade, PSD)
00000011 Manual Switch (Manual Switch, MS)
00000010 Wait-to-Restore (Wait to Restore, WTR)
00000001 Operate as normal (Operation normally) or idle (Idle)
00000000 Initialization (Initiation state)
Attention: 1. Forced Switch and Manual Switch state only are used for annular and network topology
According to method provided by the invention; it is characterized in that; the network control administrative mechanism that described new types of data link layer protocol provides comprises 2 layers of wrap protection; 2 layers of protection switched to refer to when the network physical link and broken down (as fibercuts) or the permission of the node device K1/K2 protocol that similar SDH ring adopts when breaking down realizes the power of self-healing recovery in 50 milliseconds; 50 milliseconds of protection switch functions provided by the invention are mainly used in annular or network topology etc. and can realize protecting on the link of switching; with two fine rings is example; if certain node (DLP node on the ring; be assumed to node 2) go up in certain direction (be assumed to from node 1 to node 2 direction) that (its value is programmable 20 milliseconds of times; the default value of the present invention definition is 20 milliseconds) in do not receive any data message and (comprise Frame; control frame; traffic management frame or empty frame etc.) or physical link breaks down (as the fracture of optical fiber facility) or node breaks down (losing efficacy or the physical signalling degeneration as physical signalling); this node enters 2 layers of protection switch status; sending 2 layers of guard mode claim frame (L2PS_Request frame) goes up coupled node (as node 1) for network (ring or network topology); node 1 also enters 2 layers of protection switch status (english abbreviation is L2PS) after receiving these 2 layers of guard mode claim frames; and send 2 layers of protection switch status report frame (L2PS_State_Report frame) and give the node that connects network management entity or be broadcast to all nodes that are in normal state on the ring; in the L2PS attitude; all packets of 2 are switched on the standby path from node 1 to node; if the fault clearance on the node 2; node 2 enters normal state; start WTR (Wait-to-Restore) timer (Timer_WTR; its value is programmable; scope is 0～1800 second; default value is 10 seconds); in case the WTR timer stops; node 2 sends WTR claim frame (WTR_Request frame) along the path before and after switching and gives node 1; node 1 returns normal state from node L2PS attitude after receiving this frame; when being binary " 00000100 ", the type field value that the present invention defines control frame represents that control frame is 2 layers of protection switching request frame; when being binary " 00000101 ", the type field value of control frame represents that control frame is that response frame is switched in 2 layers of protection; when being binary " 00000110 ", the type field value of control frame represents that control frame is that the report frame is switched in 2 layers of protection; 2 layers of protection switching request frame TLV structure intermediate value (Value; V) parameter of field has 2; first is this address of node sign indicating number; length is 8 bytes; second operating state (Forced Switch FS that parameter is this node; physical signalling inefficacy PSF; physical signalling degeneration PSD and Manual Switch); length is 1 byte; the binary value of each state is as shown in table 5; other values of this byte keep to be done to use in the future; the parameter that value field in the response frame TLV structure is switched in 2 layers of protection has two; first is this address of node sign indicating number; length is 8 bytes; second parameter length is 1 byte; wherein binary value is successfully realized switching for " 00000000 " is represented; binary value is switched unsuccessful for " 11111111 " expression; other binary values keep; 2 layers of protection are switched and are reported that value field has three parameters in the frame TLV structure; first parameter is the address of node sign indicating number; length is 8 bytes; second parameter is the reason of switching of node; length is 1 byte; the binary value of each attitude is as shown in table 5; whether the 3rd parametric representation node is in 2 layers of guard mode; wherein binary value is in 2 layers of protection switch status for " 11111111 " expression; binary value is in normal state for " 00000000 " expression; other are worth reservation; when control frame TLV type field value is binary " 00010000 "; the expression control frame is the WTR_Request frame; the WTR_Request frame has only a parameter; length is 8 bits; value is represented successful Wait-to-Restore for binary " 11111111 ", and other are worth reservation.
The 2nd parameter type of table 5.L2PS claim frame and L2PS report frame
Binary value State
10000000 Forced Switch (Forced Switch, FS)
00100000 The physical signalling inefficacy (Physical Signal Fail, PSF)
00001000 The physical signalling degeneration (Physical Signal Degrade, PSD)
00000010 Manual Switch (Manual Switch, MS)
Other Keep
According to method provided by the invention, it is characterized in that, the network control administrative mechanism that described new types of data link layer protocol provides comprises deployment management mechanism, deployment management mechanism is used for realizing to the relevant configuring ports management of network node (DLP node) equipment, the port address of network node (DLP node) equipment must dispose one two layers address as the source address sign indicating number (SAC) of this port in the installation of project stage, the configuration management frame comprises three kinds: configuring request frame (Configuration_Request frame), configuration response frame (Configuration_Response Frame), configuration report frame (Configuration_Report frame), during installation of project stage or engineering operation, network management entity is sent the configuring request frame by network management interface to each link (port) of network node (DLP node) equipment and is configured, the DLP node responds to network management entity by configuration response frame or configuration report frame, the present invention defines when type field value is binary system " 00000111 " value among the control frame TLV and represents that control frame is the configuring request frame, be the configuration response frame during binary system " 00001000 ", represent during binary system " 00001001 " that control frame is the configuration report frame, the configuring request frame comprises two parameters, first is origin node address (length is 8 bytes), second is new node address sign indicating number (length is 8 bytes), the value of configuration response frame (Value field value) comprises three parameters: first is origin node address (length is 8 bytes), second parameter is new node address sign indicating number (length is 8 bytes), the 3rd parameter length is 1 byte, wherein binary value is " 00000000 " expression configuration successful, binary value " 11111111 " expression configuration is unsuccessful, other values keep to give in the future to be used, the configuration report frame comprises two parameters: first is a node address (length is 8 bytes), second parameter length is 8 bytes, represents the configuration address of this node.
According to method provided by the invention, it is characterized in that, the network control administrative mechanism that described new types of data link layer protocol provides comprises fault management mechanism, fault management mechanism is used for realizing the fault management to network node (DLP node), fault management capability is realized by the fault management frame, the fault management frame comprises three: fault inquiry claim frame (Fault_Inquiry_Request frame), fault inquiry response frame (Fault_Inquiry_Response frame) and Trouble Report frame (Fault_Report frame), the present invention defines and represents when type field value is binary value " 00001010 " among the control frame TLV that control frame is the fault inquiry claim frame, be the fault inquiry response frame during binary value " 00001011 ", represent during binary value " 00001100 " that control frame is the Trouble Report frame, the fault inquiry claim frame comprises 1 parameter, this parameter is node address (length is 8 bytes), the value of fault inquiry response frame (Value field value) comprises two parameters: first is a node address (length is 8 bytes), second parameter length is that 1 byte is used for representing fault type, wherein binary value is physical signalling inefficacy (PSF) for " 00000000 " expression fault, binary value " 11111111 " expression fault is physical signalling degeneration (PSD), binary value is the normal fault-free of " 00001111 " expression node, other values keep to give in the future to be used, the value field of Trouble Report frame comprises two parameters: first is a node address (length is 8 bytes), second parameter length is that 1 byte is used for representing fault type, wherein binary value is physical signalling inefficacy (PSF) for " 00000000 " expression fault, binary value " 11111111 " expression fault is that physical signalling is degenerated (PSD), and other values keep to give in the future to be used.
According to method provided by the invention, it is characterized in that, the network control administrative mechanism that described new types of data link layer protocol provides comprises performance management mechanism, performance management mechanism is used for realizing the performance management to network node (DLP node), performance management function through performance management frames realizes, the performance management frame comprises three kinds of frames: performance queries claim frame (Performance_Inquiry_Request frame), performance queries response frame (Performance_Inquiry_Response frame) and performance report frame (Performance_Report frame), when the control frame type field value is binary " 00001101 ", the expression control frame is the performance queries claim frame, the performance queries claim frame is used for asking certain performance index of certain network node of inquiry (DLP node), when the control frame type field value is binary " 00001110 ", the expression control frame is the performance queries response frame, the performance queries response frame is used for certain performance index of certain node that response performance query requests frame proposes, when the control frame type field value is binary " 00001111 ", the expression control frame is the performance report frame, the performance report frame is used for reporting to network management entity every performance index of certain node, the value of performance queries claim frame (Value) field comprises three parameters, first parameter is for asking the node address sign indicating number of query performance, length is 8 bytes, second parameter is the time measurement unit that is used for identifying calculation of performance indicators, length is 4 bits, wherein binary " 0001 " expression unit of measurement is second, binary " 0010 " expression unit of measurement is minute, binary " 0011 " expression unit of measurement is hour, binary " 0100 " expression unit of measurement is the sky, other field values keep to using in the future, the 3rd parameter is the performance index type, length is 4 bits, wherein binary " 0001 " expression performance index are Frame Check Sequence mistake number, binary " 0010 " expression number of dropped packets, binary " 0011 " expression packet loss, the time delay (time delay) of binary " 0100 " expression bag, other values keep to give in the future to be used, the value of performance queries response frame (Value) field comprises 4 parameters, first parameter length is 8 bytes, be used for representing node address that the performance queries claim frame is responded, second parameter length is 4 bits, be used for identifying the time measurement unit of calculation of performance indicators, the 3rd parameter length is that 4 bits are used for identifying the performance index type, the 4th parameter length is 3 bytes, be used for representing the performance index value that specifically will inquire about, the value of performance queries response frame (Value) field second the same with the usage of second and the 3rd parameter of value (Value) field of performance queries claim frame with the usage of the 3rd parameter (time measurement unit and performance index type), the value of performance report frame (Value) field comprises 4 parameters, first parameter length is 8 bytes, be used for representing to send the node address of report frame to network management entity, second parameter length is 4 bits, be used for identifying the time measurement unit of calculation of performance indicators, the 3rd parameter length is that 4 bits are used for identifying the performance index type, the 4th parameter length is 3 bytes, be used for representing the performance index value that specifically will report, the value of performance report frame (Value) field second the same with the usage of second and the 3rd parameter of value (Value) field of performance queries claim frame with the usage of the 3rd parameter (time measurement unit and performance index type).
According to method provided by the invention, it is characterized in that the traffic engineering that described new types of data link layer protocol provides powerful traffic management mechanism to realize network, method are that at first convection current is classified through all business of network, promptly to miscellaneous service (speech from the upper strata, the IP data, Digital Television, the ethernet mac frame, TDM (TDM is time-multiplexed english abbreviation) circuit simulation signals etc.) carrying out priority classification is divided into the business of high priority and the business of low priority, with classification be positioned at two layers data-link layer address (source address sign indicating number and destination address sign indicating number) expression upper-layer service address (destination address and source address) simultaneously to business according to belonging to which country or geographic area, which area of certain country or geographic area, certain node in certain area, certain user of certain node carries out the classification of countries, thereby represents that with the L2 address of classification physical link port L2 address carries out the classification of countries to physical resource, distribute different band width in physical links to be used to transmit dissimilar business simultaneously, the miscellaneous service of the whole network of flowing through is mapped on the actual physical link according to different priority type and region classification, realizes the flow and the band width in physical resource of whole network are unified dispatching management and monitoring by the traffic management frame, specific as follows: at first to from described new types of data link layer protocol---all business of the above level in DLP sublayer are classified, be divided into the business of high priority and the business of low priority, the business packet includes network managing control information (control frame) of high priority, traffic management information (traffic management frame), various real-time voice services (comprising fixing or mobile voice or video telephone), various real-time videos (Digital Television), real time business based on IP (IPv4/IPv6), PDH and SDH/SONET circuit simulation signal, the business of low priority are general IP data service, and concrete various types of traffic identifies with the business type field value in described new types of data link layer protocol (DLP) frame, the destination address sign indicating number and the source address sign indicating number of a classification in the DLP frame, have been defined, the destination address sign indicating number adopts identical structure with the source address sign indicating number, all by national code, domestic area code, station code and personal code work four parts are formed, and are used for identification service respectively to belong to which country or geographic area, which area in certain country or the geographic area, which node in certain area, which user of which intranodal, for IP operation, destination address sign indicating number and source address sign indicating number are represented the purpose IP address in the IP packet head and the forwarding equivalence class of source IP address respectively, the telephone number of representing both call sides for voice service destination address sign indicating number and source address sign indicating number respectively, represent the address of digital television signal transmitting terminal and receiving terminal respectively for Digital Television (digital video) business purpose address code and source address sign indicating number, for the ethernet mac frame, adopt the circuit such as the PDH of Time Division Multiplexing technology, business purpose address codes such as the circuit simulation signal of SDH/SONET and source address sign indicating number are represented the address of signal sending end and receiving terminal respectively, like this by data-link layer address to miscellaneous service (speech from the upper strata, data, video, Ethernet and TDM circuit simulation signal) carried out the classification of region, miscellaneous service according to different countries or geographic area, certain area in particular country or the geographic area, certain node in the area, certain user of certain node classifies, simultaneously whole physics is transmitted the data-link layer address of one two layers of each node port (each light wave that comprises wavelength-division multiplex system) signs of network, and the different link of regulation is used to transmit business dissimilar and that lead to different regions, the bandwidth resources that whole physics is transmitted network are classified like this, some bandwidth is used to transmit important real time business such as speech and real-time video, some is used to transmit general IP data service, and some bandwidth link is used to transmit international business, and some bandwidth link is used to transmit business transprovincially, some bandwidth link is used to transmit local service, if and network break down allow to transmit the IP data link by the service occupation of high priority, by the traffic management frame of the present invention's definition the flow and the network bandwidth resources of whole network are monitored processing, network management system comprises a traffic engineering database, this data-base recording the link circuit resource distribution situation of whole network, flow through the type of service of network, the overall budget number, total flow, physical link speed, allow parameters such as maximum transfer rate, the present invention defines when the business type field value is set to binary value " 10000010 " in described new types of data link layer protocol frame (DLP frame) header, and what expression DLP frame encapsulated is traffic management information, corresponding data link layer protocol frame is the traffic management frame, the traffic management information employing type-length-value of traffic management frame (English is Type-Length-Value, TLV) structure, wherein, type field length is 8 bits, be used to refer to the type of traffic management frame, length field length is 8 bits, is used for length with byte form indicated value (Value) field, value (Value) field comprises concrete traffic management content frame, the usage of network management frame type field is as shown in table 6, and what represent when wherein type field value is binary " 00000001 " among the traffic management frame TLV that traffic management frame payload carries is link traffic flow attribution information, and its value (Value) field contents comprises four parameters, first parameter is a node address, length is 8 bytes, and second parameter is type of service, is used for expression through the type of service under certain node flow bag (grouping), length is 1 byte, the service class offset of dissimilar business determines that by table 2 the 3rd parameter length is that 1 byte is used for identifying the measuring parameter type that flows through certain node link flow, and wherein binary value is peak rate (unit is a bits per second) for " 00000001 " expression flow measurement parameter type, binary value is Mean Speed (unit is a bits per second) for " 00000010 " expression flow measurement parameter type, binary value is that " 00000011 " expression flow measurement parameter type is maximum bag (grouping) number (unit is the bag per second), and binary value is average packet (grouping) number (unit is the bag per second) for " 00000100 " expression flow measurement parameter type, and binary value is peak value burst length (unit is a byte) for " 00000101 " expression flow measurement parameter type, binary value is agreement burst length (unit is a byte) for " 00000110 " expression flow measurement parameter type, binary value is burst excess length (unit is a byte) for " 00000111 " expression flow measurement parameter type, and other values keep to give in the future to be used, and the 4th parameter length is the value that 4 bytes are used for identifying concrete various flows, the Resource Properties of representing various physical links when type field value is binary system " 00000100～00100111 " among the traffic management frame TLV, the types value of various concrete links is as shown in table 6, and the source attribute values of various physical links includes four parameters, and first parameter is a node address, length is 8 bytes, second parameter is type of service, is used for expression through the type of service under certain node flow bag (grouping), and length is 1 byte, the service class offset of dissimilar business is determined by table 2, the 3rd parameter length is that 1 byte is used for identifying the measuring parameter type that flows through certain node link flow, and wherein binary value is peak rate (unit is a bits per second) for " 00000001 " expression flow measurement parameter type, and binary value is Mean Speed (unit is a bits per second) for " 00000010 " expression flow measurement parameter type, binary value is that " 00000011 " expression flow measurement parameter type is maximum bag (grouping) number (unit is the bag per second), binary value is average packet (grouping) number (unit is the bag per second) for " 00000100 " expression flow measurement parameter type, and binary value is peak value burst length (unit is a byte) for " 00000101 " expression flow measurement parameter type, and binary value is agreement burst length (unit is a byte) for " 00000110 " expression flow measurement parameter type, binary value is burst excess length (unit is a byte) for " 00000111 " expression flow measurement parameter type, other values keep to give in the future to be used, and the 4th parameter length is the value that 4 bytes are used for identifying concrete various flows, and the number of frames value of DLP traffic management frame is used for identifying the sequencing that the traffic management frame sends, realize that sign DLP flow control management information sends the function of sequencing, the payload information field of DLP traffic management frame can comprise a plurality of traffic management TLV information, for convenience the realization (generally adopt 32 as present chip, requiring traffic management frame total length like this is the integral multiple of 32 bits) of chip of the present invention, the length that requires whole traffic management frame is the integral multiple of 32 bits, if originally DLP traffic management frame length is not the integral multiple of 32 bits, then behind traffic management TLV, fill processing with the byte that is 0 entirely, the length of filling identifies with the byte form with the filling length field of DLP traffic management frame.
The usage of table 6. traffic management frame type field
The binary value of type field Usage
00000000 Keep
00000001 The link traffic flow attribution
00000010 10Mbps ethernet link attribute
00000011 100Mbps ethernet link attribute
00000100 10/100Mbps ethernet link attribute
00000101 The gigabit ethernet link attribute
00000110 10Gb/s ethernet link attribute
00000111 STM-0 SDH link attribute
00001000 STM-1/OC-3c SDH link attribute
00001001 STM-4/OC-12c SDH link attribute
00001010 STM-16/OC-48c SDH link attribute
00001011 STM-64/OC-192c SDH link attribute
00001100 STM-256/OC-768c SDH link attribute
00001101 64 kilobits/second physical link attributes
00001110 1544 kilobits/second PDH link attributes
00001111 2048 kilobits/second PDH link attributes
00010000 6312 kilobits/second PDH link attributes
00010001 8448 kilobits/second PDH link attributes
00010010 34368 kilobits/second PDH link attributes
00010011 44736 kilobits/second PDH link attributes
00010100 139264 kilobits/second PDH link attributes
00010101 IEEE 802.11a link attribute
00010¨0 IEEE 802.11b link attribute
00010111 IEEE 802.11g link attribute
00011000 IEEE 802.11h link attribute
00011001 The GSM link attribute
00011010 IEEE 802.16a (2-11 GHz) link attribute
00011011 IEEE 802.16c (10-66GHz) link attribute
00011100 The WCDMA link attribute
00011101 The TD-SCDMA link attribute
00011110 The CDMA2000 link attribute
00011111 The DVB link attribute
00100000 The MPEG-1 link attribute
00100001 The MPEG-2 link attribute
00100010 The MPEG-3 link attribute
00100011 The isdn link attribute
00100100 The adsl link attribute
00100101 The VDSL link attribute
00100110 Other xDSL link attributes
00100111～11111111 Keep
With respect to existing IP and the adaptive method of Ethernet, the present invention has following innovation:
(1) for inserting, Ethernet provides a kind of authentication and billing mechanism.Because existing Ethernet Design Orientation originally is a kind of shared local net network; this shared network is mainly used in enterprise; school or government organs etc.; in this network inner anyone can access network; need not to carry out authentication and give each user the processing of chargeing; so do not have authentication in the method that IP and Ethernet merge now; functions such as charging; but in case it is used for Access Network; authentication and accounting management are exactly a primary problem; because this is related to the service income of operator; operator can only use the principle of whose paying to charge according to whom; can not first use; second is paid; and adopt method provided by the invention to specify one two layers address code to each concrete user is source address sign indicating number in the DLP frame; realize user's authentication with this address code; thereby for charging provides the identity foundation, user's address code can be permanent also can be the temporary number or the user's telephone number of network management center appointment when inserting by all means.
(2) provide powerful network management control function.In the adaptation method that existing internet and Ethernet merge is that what network management control function internet or Ethernet all do not have; particularly there is not the network protection switch function; because existing Ethernet (except the 10G Ethernet) itself is a kind of local area network technology; network control and management aspect function ratio a little less than; particularly there is not network protection switch function (as 50 milliseconds of switch functions); and IP network also belongs to a kind of transmission network of doing one's best; itself there is not any network management control function yet; therefore the result of the simple superposition of these two kinds of network technologies is that whole network lacks necessary network control management function; particularly lack the network protection switch function; in addition; what IP network adopted is that Routing Protocol is transmitted processing to the IP bag; in case break down; existing adaptation method can only rely on IP network to recomputate route; this may cause packet loss on the one hand; be on the other hand if IP carrying be important real time business such as real-time voice service; because the switching time reality of IP network in seconds; therefore may be difficult to satisfy the requirement of real time business; and adopt method provided by the invention that powerful network management control function is provided; particularly protect switch functions for 50 milliseconds; these functions comprise Topology Discovery; 2 layers of protection are switched; fault management; configuration management; performance management etc., thus make existing Ethernet become a kind of carrier-class network.
(3) provide the traffic management function, the traffic engineering ability particularly is provided.Because what IP network adopted is that two big class Routing Protocols are the Route Selection that Interior Gateway Protocol and Exterior Gateway Protocol realize the IP bag, this mode does not have the traffic engineering ability, even may cause having between two nodes multilink to connect, but IP network may all transmit the IP bag by a link, it is congested to cause this link to produce, thereby cause packet loss, and this moment, an other link was in idle condition.The invention provides the traffic engineering ability, the forwarding of IP bag is to transmit according to the IP forwarding equivalence class realization just of the destination address sign indicating number in the DLP frame, it is exactly the frame that is specifically designed to traffic management that DLP frame of the present invention has a kind of, it can provide powerful traffic engineering ability, the generation of above-mentioned situation can not occur.
(4) business is carried out classification, have service quality to guarantee.Because the adaptation method that existing internet and Ethernet merge does not carry out any professional classification to the data business, everybody is the same, all has identical priority, causes this IP network not have service quality to guarantee.The present invention has carried out the classification of science to the business of network, one class is the important real time business that quality of service requirement is arranged, one class is the business of doing one's best, priority treatment real time business during processing, and the flow of whole network also need rely on traffic engineering to monitor, thereby guaranteed the service quality of network.
(5) provide IP bag forwarding mechanism efficiently, can realize the direct exchange of optical wavelength.Because the adaptation method that existing internet and Ethernet merge is IP to be sealed to install in the ethernet mac frame simply, what adopt is point-to-point connection processing mode, if adopt three layers of exchange, must handle each IP bag so, if with two layers of exchange of Ethernet then must handle to each ethernet mac frame, this processing mode poor efficiency of one side, complicated, on the other hand, if network is an all-optical network, must carry out a series of light-electrical-optical conversion process so, can not realize full light exchange, particularly for the dense wavelength division multiplexing system that adopts the ethernet frame structure.And adopt method provided by the invention, as long as classify according to affiliated country, area, node to the IP bag in the porch at network, and the forwarding equivalence class of IP bag realized that as the destination address of DLP frame two layers of the IP bag are transmitted and exchange, can realize the direct exchange of optical wavelength.
(6) security performance of raising network.Adopt the IP network of the adaptation method of existing internet and Ethernet can say without any safety, as everyone knows, present IP network is without any fail safe, the IP packet can be by intercepting, replacement, because above-mentioned adaptation method only is that IP bag is mapped in the ethernet mac frame payload field, these adaptation methods to the safety that improves IP network without any help.The present invention provides powerful safety function from three aspects for IP network: the one, and utilize forwarding equivalence class to replace the IP address to realize the forwarding of IP bag, just utilize the IP address to its processing of classifying during processing, shielded real IP address like this at the edge access point; Two have provided a kind of encryption mechanism, can carry out encryption to the entire I P bag that comprises the IP address; Three have provided a kind of data authentication mechanism, can carry out authentication processing to original IP bag, generate a summary (being equivalent to a fingerprint) in company with sending, and can judge by the finger print information of identification IP bag whether the IP bag is revised by the people.Cryptographic algorithm and identifying algorithm can be to select flexibly in addition, determine by user's actual needs, and both can be the algorithm of standard, also can be the tailor-made algorithm of the tailor-made algorithm such as the military, financial institution, can reach the desirable security performance of user like this.
(7) realize the interconnected of IPv4 and IPv6 network.The adaptation method that existing internet and Ethernet merge can be used for IPv4 and IPv6, promptly can be implemented in and directly transmit IPv4 and IPv6 on the Ethernet, but because IPv4 and IPv6 are incompatible, and owing to existing adaptive mode need be handled each IP bag in network layer, because IPv4 and IPv6 network can not be compatible, make existing adaptation method make IPv4 and the IPv6 network can not be compatible.Because what the present invention adopted is that forwarding equivalence class replaces the forwarding of IP address to the IP bag, only need to realize the forwarding of IP bag according to the destination address sign indicating number in network intermediate link, to IPv4 address and IPv6 address all is to carry out identical classification at different addresses to handle, and therefore can realize the compatibility of IPv4 and IPv6 network.
(8) can realize the integration of three networks of speech, data and video network.Adopt in the network of adaptation method of existing internet and Ethernet, traditional voice service is what to be separated with the IP network business, and generally believe that now following unified public network will adopt packet-switch technology, how these adaptation methods are for realizing the voice service packetizing, and the aspects such as fusion that make packetized voice business and IP network are without any help.Adopt method provided by the invention can realize the fusion of packet voice network and IP network, method is to utilize the business type field that defines in the DLP frame to realize multiple services encapsulation, utilize the destination address sign indicating number of DLP frame definition and the L2 address that the source address sign indicating number identifies different service types, for IP operation, identify the forwarding equivalence class of IP bag with destination address sign indicating number and source address sign indicating number, and for voice service, the telephone number of destination address sign indicating number and seedbed representation both call sides is (for the calling party, the corresponding called phone number of destination address sign indicating number in the DLP frame, the corresponding calling telephone number of source address sign indicating number, packet for the callee, situation just conversely), realized the fusion of IP network and voice network so on the one hand, and this fusion is not that voice network is superimposed upon on the IP network, the strong point of two networks has been brought into play in this fusion, has abandoned some shortcomings of two networks simultaneously.
Description of drawings
Further specify characteristics of the present invention below in conjunction with accompanying drawing and example.
Fig. 1 is adopted service model (conception schematic diagram) by the present invention
Fig. 2 is used for the protocol stack structure schematic diagram that Ethernet transmits the Internet data packets for the present invention
Fig. 3 is the protocol stack arrangement example schematic of networking of the present invention
The DLP data frame structure that is used to transmit the IP bag that Fig. 4 adopts for the present invention
The DLP control frame structure that Fig. 5 adopts for the present invention
The DLP traffic management frame structure that Fig. 6 adopts for the present invention
Fig. 7 delimits the finite state machine figure that mode adopted for the frame of DLP frame of the present invention
Destination address sign indicating number and source address code structure that Fig. 8 adopts for the present invention
The empty frame structure of DLP that Fig. 9 adopts for the present invention
Figure 10 is usefulness (X proposed by the invention 43+ 1) schematic diagram of multinomial scrambler and descrambling code
Figure 11 is that IP bag of the present invention transmits network diagram
Figure 12 shows that traffic engineering schematic diagram of the present invention
Figure 13 uses conception figure for the present invention at metropolitan area network or wide area network networking
The order of message transmission is earlier from left to right in all DLP frame block diagrams of the present invention's definition, then from top to bottom, at first transmit highest significant position in each byte, leftmost bit is highest significant position (MSB) in all block diagrams, rightmost bit is least significant bit (LSB), and the reserved word segment value is 0 in all block diagrams.
Figure 1 shows that service model that the present invention adopts (conception schematic diagram), in this framework, physical layer is the Ethernet of various speed, network layer is IP (comprising the 4th edition IPv4 of Internet Protocol and the 6th edition IPv6 of Internet Protocol), data link layer protocol comprises 2 layers, one deck is the data link rules (DLP) that the present invention defines, one deck is the MAC sublayer (MAC) in the ethernet standard, wherein DLP is positioned on the MAC, the present invention logically is considered as a kind of physical entity to all following parts of MAC in the ethernet standard (comprising media access control sublayer), and the present invention is not to existing physical-layer techniques, network layer and make any modification with the technology on upper strata.Data link layer (DLP) is passed through four primitive to the service that network layer provides: data link-data-request (the English DL_DATA.request of being), data link-data-indication (English is DL_DATA.indication), data link-control-request (English is DL_CONTROL.request), data link-control-indication (English is DL_CONTROL.indication) realizes, wherein data link-data primitive provides the network control service for network layer provides data delivery service data link-control primitive, at transmitting terminal, if there is network layer to have the IP bag to need to send, then call DL_DATA.request primitive, this primitive comprises a series of parameter, determine the value of the relevant field of DLP frame by the parameter of this primitive, at receiving terminal, as packet (IP bag) in the time of need being sent to network layer, call DL_DATA.indication primitive, utilize the parametric solution of this primitive to separate out each field value of DLP frame, if network layer needs data link layer that the control service is provided, call DL_CONTROL.request and DL_CONTROL.indication primitive, realize with MA_DATA.request (MAC request of data) and MA_DATA.indication (indication of the MAC data) primitive that passes through in the ethernet standard of communicating by letter between the ethernet mac sublayer data link rules (DLP) sublayer, EthernetPHY represents ethernet physical layer among the figure, IPv4 represents Internet Protocol the 4th edition, IPv6 represents the Internet Protocol sixth version, and IP represents Internet Protocol (general address).
Figure 2 shows that the present invention is used for the protocol stack structure schematic diagram that the Internet data packets is sent in the Ethernet transmission, IP is positioned at the client layer of DLP in this structure, data link layer comprises data link rules (DLP) and ethernet mac sublayer, at first IP is sealed at transmitting terminal and to install in the DLP frame, then the DLP frame is encapsulated in the payload information field of ethernet mac frame, the ethernet mac frame is handled as common Ethernet subsequently, the ethernet mac frame is mapped on the ethernet physical layer of different rates, at receiving terminal, extract the DLP frame according to opposite order, parse the IP bag then, TCP represents transmission control protocol among the figure, UDP represents User Datagram Protoco (UDP), IPv4 represents Internet Protocol the 4th edition, IPv6 represents the Internet Protocol sixth version, IP represents Internet Protocol (general address), DLP represents the data link rules, MAC represents MAC sublayer, PLS represents the physical layer signaling sublayer, AUI represents extra cell interface sublayer, PMA represents that physical medium inserts the sublayer, MDI represents the Media Dependent Interface sublayer, PMD represents physical layer medium dependent, PCS represents Physical Coding Sublayer, MII represents the Media Independent Interface sublayer, GMII represents gigabit Media Independent Interface sublayer, and XGMII represents 10G Media Independent Interface sublayer, and 64B/66B represents 64B/66B coding sublayer, 8B/10B represents 8B/10B coding sublayer, and WIS represents the Wide Area Network interface sublayer.
Fig. 3 is the protocol stack arrangement example schematic of networking of the present invention, be divided into two kinds of situations, in the situation shown in Fig. 3 (a), the inlet side of the network that the internet that its expression is not supported the local area network (LAN) of DLP agreement to insert to realize with DLP and Ethernet merge and the protocol stack arrangement that goes out to hold each node of gateway, TCP represents transmission control protocol among the figure, UDP represents User Datagram Protoco (UDP), IP represents Internet Protocol (the general address of Internet Protocol, comprise the 4th edition IPv4 of Internet Protocol and Internet Protocol sixth version IPv6), DLP represents the data link rules, LLC presentation logic controlling links sublayer, MAC represents MAC sublayer, PHY represents ethernet physical layer, LAN represents local area network (LAN), the fusion of " IP over Ethernet " expression Internet Protocol and Ethernet, at the gateway place, are furnished with two class Ethernet physical interfaces simultaneously, one class supports the other class of DLP technology not support the DLP technology, and that network layer remains IP (IPv4/IPv6) is constant, but need not each IP bag is handled in the whole network subsequently, and at this moment the Ethernet physical link is classified, the Ethernet of different types is used to transmit dissimilar IP bags, be used to transmit the IP bag that arrives the different location as the Ethernet interface of different rates or the Ethernet interface of different port, for Fig. 3 (b) if shown in the situation local area network (LAN) support the DLP agreement, between network layer (IP) and media access control sublayer, insert one deck DLP agreement, on local area network (LAN) outlet gateway, can classify to the IP bag of output, only need to dispose one deck DLP agreement with the gateway place that is connected of IP over Ethernet at local area network (LAN), directly the DLP frame is encapsulated in the ethernet mac frame, the IP over Ethernet subsequently need not each node the IP bag is handled.
Figure 4 shows that the DLP data frame structure that is used for transmitting the IP bag that the present invention adopts, the DLP Frame is by frame length (FL), frame length verification (FLC), R field (reserved field of 1 bit), business type field, the topology field, secure fields, the destination address sign indicating number, the source address sign indicating number, extension header, fill length field, the number of frames field, Security Parameter Index, payload field, the padding data field, field such as authentication data field and Frame Check Sequence is formed, Security Parameter Index wherein, padding data field and authentication data field are options, by the authentication of adopting, cryptographic algorithm is determined.
The DLP control frame structure that Fig. 5 adopts for the present invention, the DLP control frame is by frame length, the frame length verification, R field (1 bit reserved field, be set to 0), type of service, the topology field, secure fields, the destination address sign indicating number, the source address sign indicating number, extension header, fill length field, number of frames, fields such as payload information field and Frame Check Sequence field are formed, frame length wherein, the frame length verification, R field (1 bit reserved field), type of service, the topology field, secure fields, the destination address sign indicating number, the source address sign indicating number, field lengths such as number of frames are the same with the DLP Frame, the header field value is 0 (binary value is 00000000), the business type field value be the encapsulation of binary system " 10000001 " expression DLP payload field be control information, type-length-value (TLV) structure is adopted in control information.
The DLP traffic management frame structure that Fig. 6 adopts for the present invention, DLP traffic management frame is by frame length, the frame length verification, R field (1 bit reserved field, be set to 0), type of service, the topology field, secure fields, the destination address sign indicating number, the source address sign indicating number, extension header, fill length, number of frames, fields such as payload information field and Frame Check Sequence field are formed, frame length wherein, the frame length verification, R field (1 bit reserved field), type of service, the topology field, secure fields, the destination address sign indicating number, the source address sign indicating number, field lengths such as number of frames are the same with the DLP Frame, the header field value is 0 (binary value is 00000000), the business type field value is that binary system " 10000010 " expression DLP payload is a traffic management information, and traffic management information adopts type-length-value (TLV) structure.
Fig. 7 delimits the finite state digraph that algorithm adopted for the frame of DLP frame of the present invention, the frame based on header error verification (english abbreviation is HEC) that the DLP frame of the present invention definition adopts similar ITU-T to be adopted among the ATM of definition in I.432.1.1 advising is delimited describing method, the 31 initial bits that utilization receives are that FL and FLC field bit constitute BCH (31,16) encoding relation of sign indicating number is realized the frame demarcation of DLP frame, the DLP frame is delimited the description algorithm and is determined by finite state machine figure, the finite state machine workflow diagram is as follows: (1) is in the search attitude, DLP handles 31 bits that receive is pursued FL and the FLC relation that correct format is sought in the bit search, in this state, BCH code does not have the single-bit error of FL field and FLC field or 2 bit error correction functions, in case in 31 bits that receive, find correct candidate FL and FLC matching relationship value, can suppose and determine a correct DLP frame, receive presynchronization (the English PRESYNC of the being) state that enters of handling, (2) in the PRESYNC attitude, DLP handles by searching for frame by frame to handle and realizes the demarcation of DLP frame, pursue FL and the correct matching value of FLC that the bit search is found according to previous step, can suppose and search a correct DLP frame, can determine the FL and the FLC field value of next frame then according to each field relation of this frame, and determine according to their relation whether they mate, and then next frame, in case determine that continuously (DELTA is a parameter to DELTA, it be one greater than 0 positive integer) individual correct DLP frame, DLP receives to handle and enters synchronous state, otherwise, if the FL of a frame and FLC field value do not match subsequently, enter the search attitude, at this moment, BCH code does not have the single-bit error of FL field and FLC field or 2 bit error correction functions, enter synchronous state from the search attitude and need search DELTA+1 correct DLP frame continuously, (3) at synchronous state, DLP handles the beginning that can determine next DLP frame by the FL of a frame and FLC field relation, can realize the parsing of a frame one frame then, FLC has single-bit error or 2 bit mistake error corrections in this state, if a plurality of bits (surpassing 2 bit mistakes) mistake takes place, then frame is delimited and was lost efficacy, framing is handled and is entered the search attitude, and send client server Signal Fail (english abbreviation is SSF) indication for client's adaptation processing, (4) empty DLP frame participates in frame and delimits processing, and abandon the sky frame subsequently, it is relevant with the DELTA value that the DLP frame is delimited the strong property of the key of handling, and the present invention advises that the DELTA value is 1.
Destination address sign indicating number and source address code structure that Fig. 8 adopts for the present invention, destination address sign indicating number and source address sign indicating number are used for representing the forwarding equivalence class of purpose IP address and source IP address in the IP packet head respectively, the coding structure of source address sign indicating number is identical with the destination address sign indicating number, the length of destination address sign indicating number (english abbreviation is DAC) is 64 bits (8 eight hytes), be used for identifying the purpose forwarding address of DLP frame in the network that adopts DLP, the DAC field is made up of following 4 parts: national code field, domestic area code, station code, personal code work.Wherein: the national code field length is 16 bits (2 eight hytes), this yard is the first order forwarding label of IP bag, it can be that international long-distance area code in the existing telephone coding system also can be the value of other appointment that the present invention defines this field value, domestic area code field length is 16 bits, this yard is the second level forwarding label of IP bag, for this field value of the present invention can be that national distance area code in the existing telephone coding system also can be the value of other appointment, the station code field is 16 bits, identify the service code of certain network node, this yard is the third level forwarding label of IP bag, and occurrence is specified by Virtual network operator or Internet service provider; The personal code work field length is 16 bits, indicates certain user's service code, and this yard is the fourth stage forwarding label of IP bag, and concrete UC value is specified by Virtual network operator or Internet service provider.
The empty frame structure of DLP that Fig. 9 adopts for the present invention, the purpose that sends empty frame is in order to regulate two internodal speed, the adjacent node that it sends to from a node that it links to each other, neighbor node is not forwarded to any other place to it after receiving the sky frame, directly it is abandoned, the empty frame of DLP is by frame length field (16 bit), frame length check field (15 bit), reserved field (the R field that length is 1 bit, be set to 0), including only station code and personal code work field length is the source address sign indicating number composition of 4 bytes.
Figure 10 shows that usefulness (X proposed by the invention 43+ 1) schematic diagram of multinomial scrambler and descrambling code, D1 represents the 1st to 43 of register among the figure to D43, the part that empty frame fences up is represented one 43 bit shift register, garden circle part is represented an XOR circuit, according to the logical relation among the figure, at transmitting terminal, can finish the scrambler function to the DLP frame from " the data flow input before the scrambler " to " the data flow output behind the scrambler "; At receiving terminal, can finish the descrambling code function to " the data flow output behind the descrambling code " from " input of scrambler data flow "; The also shift register that can from D1 to D43, be shifted, but corresponding logical relation also should adjust.
Figure 11 is that IP bag of the present invention transmits network diagram, dark round spot is represented fringe node among the figure, white circle is represented core node, after network edge node inserts the user, according to the purpose IP address in the IP packet head and source IP address according to the country under the IP address, which area, which node, which user processing of classifying, and sorted forwarding equivalence class value is filled into destination address sign indicating number and source address code field, simultaneously entire I P bag is mapped in the payload field of DLP frame, subsequently, whole network only need utilize the forwarding of the destination address sign indicating number realization DLP frame in the DLP frame header; Transmit when handling, search the national code in the DLP frame destination address sign indicating number at first in regular turn, domestic area code, station code, personal code work, the present invention adopts longest match principle that the DLP frame is transmitted processing, in case find that a certain field value of destination address sign indicating number of DLP frame is different with local node corresponding field value, then stop search, directly transmit this packet.
Figure 12 shows that traffic engineering schematic diagram of the present invention, there are many transfer paths in Guangzhou among the figure to Beijing, in normal circumstances, Guangzhou is through Guangzhou-Wuhan-path, Pekinese to Pekinese's flow, shown in solid arrow line among the figure, if but Guangzhou-Wuhan-circuit appearance in Beijing is congested, and Guangzhou-Shanghai-Pekinese's line idle, can transfer to service traffics on Guangzhou-Shanghai-Beijing circuit this moment, shown in the dotted arrow line among the figure.
Embodiment
Imagination proposed by the invention is mainly used in user side integrated access equipment (but access device of any or several business in the incoming voice, data, video traffic), various switch router (couple in router, edge or converge switch router, core or high-end switch router), the high/medium/low end Ethernet switch based on packet switch, multi-service transport platform and any equipment that interconnects relevant with the internet, can be used for converging to core network from being linked on network topology structure.Figure 13 uses conception figure for the present invention at metropolitan area network or wide area network networking, black circles is represented fringe node (aggregation node) among the figure, white circle is represented core node, solid line represents to adopt Ethernet optical wavelength link, dotted line represents to adopt ethernet frame electrical interface link, cloud form partly represents to adopt the metropolitan area network or the wide area network of ethernet technology composition, on Ethernet wide area network or metropolitan area network node, insert core router or high-end Ethernet switch, on edge (converging) node, insert edge router (convergence router or switch), after fringe node inserts IP, which country belongs to according to the IP bag, certain area of certain country, certain node in certain area, certain user of certain node classifies, and handle is according to the destination address sign indicating number of the sorted forwarding equivalence class of above-mentioned sorting technique as the DLP frame, the forwarding in whole network subsequently of IP bag is handled only to be needed to get final product according to the processing of the destination address in the DLP frame header, and according to the principle of traffic engineering, can classify to interface link in the network, so different classes of IP bag is mapped on the different Ethernet interfaces, can directly realize the direct exchange of Ethernet interface, need not each IP bag is handled.

Claims (13)

1; a kind of adaptation method that is used for internet and Ethernet fusion; it is characterized in that; by between the IP of network layer and ethernet mac sublayer, introducing the novel data link layer protocol of one deck---data link rules (english abbreviation is DLP) in data link layer; utilize this novel data link layer protocol to realize the fusion of internet and Ethernet on the one hand; solve the deficiency and the defective of the network existence of existing internet and Ethernet fusion; utilize this agreement to realize the directly adaptive of internet and other various physical layer facilities on the other hand; and packet voice business and packet video business and various physical layer facilities is directly adaptive; realize telephone network; the integration of three networks of internet and TV network; in the unified whole communication network of data link layer; make present networks be smoothly transitted into unified carrier class public network of future generation; IP operation only is the part of the upper-layer service of this new types of data link layer protocol carrying; with this new types of data link layer protocol as realizing Internet Protocol (english abbreviation is IP) and the fusion of Ethernet and adaptive data link layer protocol; between this new types of data link layer protocol layer and network layer communicate by letter and this new types of data link layer protocol (DLP) layer and ethernet mac sublayer between communicate by letter and all realize by primitive; utilize the classification of this new types of data link layer protocol definition; the destination address sign indicating number of compatible existing telephone number system and source address sign indicating number are represented the purpose IP address of IP bag and the forwarding equivalence class of source IP address; the forwarding equivalence class that utilizes IP bag promptly replaces the three layers of IP address to realize the two layers of forwarding and the exchange of IP bag as the destination address sign indicating number of described new types of data link layer protocol and source address sign indicating number as the Layer 2 data link layer address; the security mechanism of utilizing this new types of data link layer protocol to provide guarantees that IP (IPv4 and IPv6) wraps in the safety in the network transport process; send miscellaneous service data with the Frame that defines in the described new types of data link layer protocol from the upper strata; the control frame of definition is realized the Topology Discovery that comprises of network; 2 layers of protection are switched; fault management; configuration management and performance management etc. are in interior network control management, and the traffic management frame of definition is realized the traffic engineering management of network.
2; method according to claim 1; it is characterized in that; by defining a novel data link layer protocol---data link rules (english abbreviation is DLP) realize existing telephone network; the integration of three networks of data communication network and video (TV) network; in the unified whole communication network of data link layer; make existing telephone network; IP data communications network and video network are smoothly transitted into unified carrier class public network of future generation; IP operation is as just the part of the upper-layer service of this new types of data link layer protocol carrying; the IP that realizes network layer with this new types of data link layer protocol is directly adaptive with the various physical layer facilities that comprise Ethernet; the service that this new types of data link layer protocol layer (DLP layer) provides for network layer is adopted and is not confirmed formula information transfer service pattern; the data that send are not done any affirmation formula operation; this new types of data link layer protocol is passed through " data link-data-request (the English DL_DATA.request of being) " for the service that network layer provides; " data link-data-indication (English is DL_DATA.indication) "; " data link-control-request (English is DL_CONTROL.request) "; 4 primitive such as " data link-control-indication (English are DL_CONTROL.indication) " are realized; realize by two the primitive MA_DATA.request (MAC request of data) and MA_DATA.indication (indication of the MAC data) primitive of IEEE 802.3 standard definitions for the service that this new types of data link layer protocol layer provides the ethernet mac sublayer; at transmitting terminal; when the IP bag needs to send; call DL_DATA.request (data link-data-request) primitive; this primitive comprises series of parameters; these parameters are used for determining the value of described new types of data link layer protocol frame each field of header and payload field; at receiving terminal; when described new types of data link layer protocol client entity will receive data; described new types of data link layer protocol entity activates DL_DATA.indication primitive; the accepting state of this primitive indication incoming frame and the value of each field of incoming frame; if network layer needs described new types of data link layer protocol that network control function is provided; call data link-control primitive: " data link-control-request (DL_CONTROL.request) " and " data link-control-indication (DL_CONTROL.indication) " primitive; these two primitive comprise a series of command code and parameter; can provide network control function by these two primitive; as discovering network topology; 2 layers of protection are switched; configuration management; fault management; performance management etc.; at transmitting terminal; need be when described new types of data link layer protocol sublayer be sent to media access control sublayer as data; described new types of data link layer protocol entity activates MA_DATA.request (MAC request of data); to when sending to described new types of data link layer protocol entity, media access control sublayer activate MA_DATA.indication (indication of MAC data) primitive at receiving terminal as data, each primitive semantic as follows:
(1)DL_DATA.request(
DestinationAddressCode，
SourceAddressCode，
DLPServiceData，
FrameLength，
ServiceType，
NetworkTopology，
Security，
FrameSequenceNumber，
SPI)
DL_DATA.request primitive contains 9 parameters, the connotation of each parameter is respectively: DestinationAddressCode represents the destination address sign indicating number, this parameter is determined the forwarding equivalence class that IP wraps according to the purpose IP address that sends in the IP packet head, with the destination address code word segment value that generates in the described new types of data link layer protocol frame header, SourceAddressCode represents the source address sign indicating number, this parameter is used for determining the forwarding equivalence class that IP wraps according to the source IP address that sends in the IP packet head, with the source address code word segment value that generates in the described new types of data link layer protocol frame header, the client signal that DLPServiceData indicates to send is an entire I P bag (grouping), with generating payload word segment value in the described new types of data link layer protocol frame, FrameLength represents frame length, be used for determining to want the total length of described new types of data link layer protocol frame, ServiceType represents type of service, be used for determining the type of service of described new types of data link layer protocol client layer signal, with generating business type field value in the described new types of data link layer protocol frame header, Security represents safety, this parameter indicates whether described new types of data link layer protocol client signal is encrypted, authentication processing, described new types of data link layer protocol entity is determined security word segment value in the described new types of data link layer protocol frame header with it, FrameSequenceNumber represents number of frames, the number of frames (FSN) of the data link layer protocol frame that this parameter indication will send, described new types of data link layer protocol entity is determined FSN field value in the described new types of data link layer protocol frame header with it, NetworkTopology represents network topology, the network topology of this parameter instructs node, described new types of data link layer protocol entity is determined topological field value in the described new types of data link layer protocol frame header with it, SPI represents Security Parameter Index (SPI is the english abbreviation of Security Parameter Index), this parameter is an option, if be used for determining the IP bag is encrypted, the security association of setting up at the communication two ends during authentication processing, Security Parameter Index (SPI) field value in the described new types of data link layer protocol frame that is used for determining
(2)DL_DATA.indication(
DestinationAddressCode，
SourceAddressCode，
DLPServiceData，
ServiceType，
FrameLength，
ReceptionStatus，
NetworkTopology，
Security，
FrameSequenceNumber，
SPI)
DL_DATDA.indication primitive parameter semantic as follows: DestinationAddressCode represents the destination address sign indicating number, this parameter is determined the destination address code word segment value in the described new types of data link layer protocol frame header of input, SourceAddressCode represents the source address sign indicating number, this parameter is determined the source address code word segment value in the described new types of data link layer protocol frame header of input, DLPServiceData represents business datum, parameter is determined the described new types of data link layer protocol frame payload word segment value of input, ReceptionStatus represents the accepting state of incoming frame, if the FCS of incoming frame (Frame Check Sequence) field does not make a mistake, the value of ReceptionStatus parameter is FCS_ERROR_FREE, otherwise, if incoming frame makes a mistake, then the ReceptionStatus value is FCS_ERROR, the business type field value of the described new types of data link layer protocol frame of ServiceType parameter indication input, the FrameLength parameter is determined the total length of the described new types of data link layer protocol frame of input, whether the described new types of data link layer protocol frame of Security parameter indication input is encrypted, authentication processing, the Security field value of its indication incoming frame, the FrameSequenceNumber parameter is indicated the FSN of described incoming frame, topological field value in the described new types of data link layer protocol frame of NetworkTopology parameter indication input, the SPI parameter is used to refer to the Security Parameter Index field value of described incoming frame
(3) data link-control-request (DL_CONTROL.request) primitive
The form of data link-control-request (DL_CONTROL.request) primitive is a DL_CONTROL.request (command code; solicit operation ordered series of numbers table); wherein command code comprises Topology Discovery request (the English TOPOLOGY_DISCOVERY_REQ of being); 2 layers of protection switching request (English is L2PS_REQ); configuring request (English is CONFIGURATION_REQ); fault inquiry request (English is FAULT_INQUIRY_REQ); performance queries request (English is PERFORMANCE_INQUIRY_REQ) etc.; the concrete operations ordered series of numbers table of each command code is as follows: the solicit operation number of Topology Discovery request (TOPOLOGY_DISCOVERY_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of Topology Discovery claim frame payload datas etc.; the solicit operation number of 2 layers of protection switching request (L2PS_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of 2 layers of protection switching request frame payload datas etc.; the solicit operation number of configuring request (CONFIGURATION_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of configuring request frame payload datas etc.; the solicit operation number of fault inquiry request (FAULT_INQUIRY_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of fault inquiry claim frame payload datas etc.; the solicit operation number of performance queries request (PERFORMANCE_INQUIRY_REQ) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of performance queries claim frame payload datas etc.; destination address sign indicating number in each operand; the source address sign indicating number; type of service; the isoparametric implication of number of frames is the same with data link-data-request primitive corresponding parameters implication
(4) data link-control-indication (DL_CONTROL.indication)
The form of data link-control-indication (DL_CONTROL.indication) primitive is a DL_CONTROL.indication (command code; the tabulation of indication operand); wherein command code comprises Topology Discovery response indication (the English TOPOLOGY_DISCOVERY_RESPONSE_IND of being); response indication (the English L2PS_RESPONSE_IND of being) is switched in 2 layers of protection; configuration response indication (English is CONFIGURATION_RESPONSE_IND); fault inquiry response indication (English is FAULT_INQUIRY_RESPONSE_IND); performance queries response indication (English is PERFORMANCE_INQUIRY_RESPONSE_IND) etc.; the concrete operations ordered series of numbers table of each command code is as follows: the indication operand of Topology Discovery response indication (TOPOLOGY_DISCOVERY_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of Topology Discovery response frame payload datas etc.; 2 layers of protection are switched response and are indicated the indication operand of (L2PS_RESPONSE_IND) command code to comprise the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of response frame payload datas etc. are switched in 2 layers of protection; the indication operand of configuration response indication (CONFIGURATION_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of configuration response frame payload datas etc.; the indication operand of fault inquiry response indication (FAULT_INQUIRY_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of fault inquiry response frame payload datas etc.; the indication operand of performance queries response indication (PERFORMANCE_INQUIRY_RESPONSE_IND) command code comprises the destination address sign indicating number; the source address sign indicating number; type of service; number of frames; 5 of performance queries response frame payload datas etc.; destination address sign indicating number in each operand; the source address sign indicating number; type of service; the isoparametric implication of number of frames is the same with data link-data-indication corresponding parameters implication
(5) MA_DATA.request (MAC request of data), the semanteme of this parameter is definite by the IEEE802.3 standard,
(6) MA_DATA.indication (indication of MAC data), the semanteme of this parameter is determined by the IEEE802.3 standard.
3, method according to claim 1, it is characterized in that, it is adaptive to realize that with described new types of data link layer protocol internet and Ethernet merge, physical layer is Ethernet physical interfaces existing and whole speed ranges that may develop future, support the Ethernet of whole speed ranges from low to high, can realize the direct sunshine wavelength exchange based on all kinds of Ethernet speed optical wavelength, wherein all kinds of Ethernet physical parameters are as shown in table 1.
All kinds of Ethernet physical parameters of table 1. The ethernet type type Bit rate The IEEE802.3 Ethernet 10 mbit/ The IEEE802.3u Fast Ethernet 100 mbit/ The 10/100Mbps self adaptation 10/100 mbit/, self adaptation IEEE 802.3z gigabit Ethernet 1000 mbit/ IEEE 802.3ae 10G Ethernet 10G bps
4; method according to claim 1; it is characterized in that; define that a novel data link layer protocol---data link rules (DLP) realize speech; the integration of three networks of data (IP) and video; it is that the specific phase mutual correlation relation (constituting certain specific coding relation) that relies on this data link layer protocol frame to begin the bit information formation in the certain-length most realizes that the frame of described new types of data link layer protocol frame is delimited; (English is Frame Length to frame length of definition in described new types of data link layer protocol frame; FL) field is used for identifying with the byte form total length of described new types of data link layer protocol frame; (English is Frame Length Check to define a frame length verification; FLC) field is used for frame length field is carried out verification and carried out single-bit error or this particular verified encoding relation that 2 bit mistake correction process utilize these two field bit to constitute simultaneously realizes that the frame of described new types of data link layer protocol frame delimits; (English is Service Type to define a type of service; ST) field is used for identifying the type of service of payload field encapsulation; thereby realize multiple services encapsulation; the business that regulation is different has different priority simultaneously; (English is Networks Topology to define a topological field; NT) come the topological classification of marked network node; whether define a safety (English for Security) field is used for identifying and the payload of encapsulation is encrypted; authentication processing; (English is Destination Address Code to the destination address sign indicating number of a classification of definition; DAC) and the source address sign indicating number (English is Source Address Code; SAC) identify the two layers of destination address and the source address of encapsulation business data packet; (English is Frame Sequence Number to define a number of frames; FSN) field is used for the transmission sequence of identification frames; (English is Extension Header to define an extension header; EH) field identifies and whether payload is carried out extension process; defining a filling length field is used for representing to fill if desired processing as payload is authenticated with the byte form; the length of filling during encryption; (English is Security Parameter Index to define a Security Parameter Index; SPI) identify payload data is carried out the authenticated encryption security association that the communication two ends are set up when handling; define a payload (the English Payload of being) field and encapsulate miscellaneous service from the upper strata; (English is Frame Check Sequence to define a Frame Check Sequence; FCS) field comes described new types of data link layer protocol frame is carried out verification; definition one class Frame sends the miscellaneous service data from the upper strata in described new types of data link layer protocol frame; definition traffic management frame is realized the traffic engineering management of network; the definition control frame is realized the Topology Discovery that comprises of network; 2 layers of protection are switched; fault management; configuration management and performance management etc. are in interior network control management; these three kinds of dissimilar frames are identified by the type field in the described new types of data link layer protocol frame; specific as follows: definition frame length (english abbreviation is FL) field length is 16 bits; definition frame length check field (english abbreviation is FLC) length is 15 bits; make FL and FLC field bit constitute BCH (31; 16) sign indicating number (BCH is the english abbreviation of BCH Bose-Chadhuri-Hocquengham's sign indicating number); this relation of utilizing the DLP frame realizes the frame demarcation of DLP frame and single-bit or 2 bit mistakes that FL occurs is carried out correction process; the generator polynomial of BCH (31,16) sign indicating number is G (x)=x 15+ x 11+ x 10+ x 9+ x 8+ x 7+ x 5+ x 3+ x 2+ x+1, initialization value are 0, here x 15Corresponding highest significant position (english abbreviation is MSB), x 0Corresponding least significant bit (english abbreviation is LSB), the specific coding that the DLP frame utilizes its front 31 bits (FL field and FLC field) to constitute concerns the demarcation that realizes the DLP frame, the DLP frame is delimited process and is realized according to finite state machine, finite state machine comprises three states: search (English is HUNT) attitude, presynchronization (English is PRESYNC) attitude, (English is SYNC) attitude synchronously, the finite state machine workflow diagram is as follows: (1) is in the search attitude, DLP handles 31 bits that receive is pursued FL and the FLC relation that correct format is sought in the bit search, in this state, BCH code does not have the function of the single-bit error of FL field and FLC field or 2 bit mistakes being carried out correction process, in case in 31 bits that receive, find correct candidate FL and FLC matching relationship value, can suppose and determine a correct DLP frame, receive presynchronization (the English PRESYNC of the being) state that enters of handling, (2) in the PRESYNC attitude, DLP handles by searching for frame by frame to handle and realizes the demarcation of DLP frame, pursue FL and the correct matching value of FLC that the bit search is found according to previous step, can suppose and search a correct DLP frame, can determine the FL and the FLC field value of next frame then according to each field relation of this frame, and determine according to their relation whether they mate, and then next frame, in case determine that continuously (DELTA is a parameter to DELTA, it be one greater than 0 positive integer) individual correct DLP frame, DLP receives to handle and enters synchronous state, otherwise, if the FL of a frame and FLC field value do not match subsequently, enter the search attitude, at this moment, BCH code does not have the function of the single-bit error of FL field and FLC field or 2 bit mistakes being carried out correction process, enter synchronous state from the search attitude and need search DELTA+1 correct DLP frame continuously, (3) at synchronous state, DLP handles the beginning that can determine next DLP frame by the FL of a frame and FLC field relation, can realize the parsing of a frame one frame then, FLC has single-bit error or 2 bit mistake error corrections in this state, if a plurality of bits (surpassing 2 bit mistakes) mistake takes place, then frame is delimited and was lost efficacy, framing is handled and is entered the search attitude, and send client server Signal Fail (english abbreviation is SSF) indication for client's adaptation processing, (4) the empty frame of DLP participates in frame and delimits processing, and abandon the sky frame subsequently, it is relevant with the DELTA value that the DLP frame is delimited the strong property of the key of handling, the present invention advises that the DELTA value is 1, the reserved field that length of definition is 1 bit behind FLC gives over to and uses (being set to 0) in the future always, definition business type field length is 8 bits, can discern 2 altogether 8=256 kinds of types of service, wherein highest significant position is that what represented in 0 o'clock to encapsulate is the general data business (as common IP data service) of low priority, highest significant position is that the business of representing the encapsulation of DLP payload field at 1 o'clock is that the real time business of high priority is (as phone, real-time video traffic), the priority of DLP Business Processing order from high to low is followed successively by: control frame＞traffic management frame＞real time business (real-time speech, video or other real time business)＞data service (IP v4/IP v6), the business of high priority is at first handled in the formation of DLP network processes, the usage of business type field is as shown in table 2
The usage of table 2. business type field The binary value of business type field Usage 00000000～00000011 Keep 00000100 IP v4 data 00000101 Mobile IP v4 data 00000110 IP v6 data 00000111 Mobile IP v6 data 00001000～00111111 Keep and give other data, services 01000000 The 10Mbps Ethernet 01000001 The 100Mbps Ethernet 01000010 The 10/100Mbps Ethernet 01000011 Gigabit Ethernet 01000100～01111111 Keep 10000001 Control frame
10000010 The traffic management frame 10000011 Real-time fixedly local call (local telephone) business 10000100 Real-time fixedly National calls business 10000101 Real-time fixedly international long-distance telephone business 10000110 In real time fixing local video telephone (local telephone) business 10000111 Real-time fixedly national distance visual telephone service 10001000 Real-time fixedly international long-distance visual telephone service 10001001 Landline telephone is called out local (local telephone) business that moves in real time 10001010 Landline telephone is called out mobile National calls business in real time 10001011 Landline telephone is called out international mobile long-distance telecommunications service in real time 10001100 Landline telephone is called out local mobile video telephone business in real time 10001101 Landline telephone is called out mobile national distance visual telephone service in real time 10001110 Landline telephone is called out the international long-distance visual telephone service that moves in real time 10001111 Move domestic voice service in real time 10010000 Move international voice service in real time 10010001 Move domestic visual voice service in real time 10010010 Move international visual voice service in real time 10010011 Real-time video traffic (broadcast type TV) 10010100 Real-time video traffic (unicast type TV) 10010101 Real time business based on IP v4 10010110 Real time business based on IP v6 10010111 Real time business based on mobile IP v4 10011000 Real time business based on mobile IP v6 10011001 G.702PDH circuit emulation service: asynchronous circuit 1544 kilobits/second 10011010 G.702PDH circuit emulation service: asynchronous circuit 2048 kilobits/second 10011011 G.702PDH circuit emulation service: asynchronous circuit 6312 kilobits/second 10011100 G.702PDH circuit emulation service: asynchronous circuit 8448 kilobits/second 10011101 G.702PDH circuit emulation service: asynchronous circuit 34368 kilobits/second 10011110 G.702PDH circuit emulation service: asynchronous circuit 44736 kilobits/second 10011111 G.702PDH circuit emulation service: synchronous circuit 1544 kilobits/second 10100000 G.702PDH circuit emulation service: synchronous circuit 2048 kilobits/second 10100001 G.702PDH circuit emulation service: synchronous circuit 6312 kilobits/second 10100010 G.702PDH circuit emulation service: synchronous circuit 8448 kilobits/second 10100011 G.702PDH circuit emulation service: synchronous circuit 34368 kilobits/second 10100100 G.702PDH circuit emulation service: synchronous circuit 44736 kilobits/second 10100101 G.702PDH circuit emulation service: 139264 kilobits/second 10100111 G.707SDH circuit emulation service: C-11,1648 kilobits/second 10101000 G.707SDH circuit emulation service: C-12,2 224 kilobits/second 10101001 G.707SDH circuit emulation service: C-2,6 832 kilobits/second 10101010 G.707SDH circuit emulation service: C-3,48384 kilobits per seconds 10101011 G.707SDH circuit emulation service: C-4,149760 kilobits per seconds 10101100 G.707SDH circuit emulation service: VC-11,1664 kilobits per seconds 10101101 G.707SDH circuit emulation service: VC-12,2240 kilobits/second 10101110 G.707SDH circuit emulation service: VC-2,6848 kilobits/second 10101111 G.707SDH circuit emulation service: VC-3,48960 kilobits/second
10110000 G.707SDH circuit emulation service: VC-4,150336 kilobits/second 10110001 G.707SDH circuit emulation service: TU-11,1728 kilobits per seconds 10110010 G.707SDH circuit emulation service: TU-12,2304 kilobits per seconds 10110011 G.707SDH circuit emulation service: TU-2,6912 kilobits per seconds 10110100 G.707SDH circuit emulation service: TU-3,49152 kilobits per seconds 10110101 G.707SDH circuit emulation service: AU-3,50304 kilobits per seconds 10110110 G.707SDH circuit emulation service: AU-4,150912 kilobits per seconds 10110111 G.707SDH circuit emulation service: STM-0,51 480 kilobits/second 10111001 G.707SDH circuit emulation service: STM-1/OC-3c, 155 520 kilobits/second 10111010 G.707SDH circuit emulation service: STM-4OC-12c, 600 080 kilobits/second 10111011 G.707SDH circuit emulation service: STM-16 ,/OC-48c 2 488 320 kilobits/second 10111100 DVB, MPEG-1 transmits bit stream 10111101 DVB, MPEG-2 transmits bit stream 10111110 DVB, MPEG-4 transmits bit stream 10111111～11111111 Keep and give other real time business
Defining topological field length is 4 bits; wherein binary value " 0001 " is represented bus structures; binary value " 0010 " expression star structure; binary value " 0011 " expression tree topology; binary value " 0100 " expression ring topology; binary value " 0101 " expression grid (Mesh) topological structure; other values keep to give in the future to be used; for ring topology and network topology; the invention provides 50 milliseconds of protection switch functions; definition secure fields length is 4 bits; wherein binary value " 0000 " expression is not carried out any encryption to upper-layer service; authentication processing; binary value is represented carry out encryption from the business datum on upper strata for " 0001 "; binary value " 0010 " expression is carried out authentication processing to the business datum from the upper strata; binary value " 0100 " expression is to encrypting and authentication processing from the business datum on upper strata; other values keep in the future to be used; definition destination address code length is 64 bits; definition source address code field length is 64 bits; the destination address sign indicating number adopts identical hierarchy with the source address sign indicating number; all (English is Country Code by national code; CC); (English is National Region Code to domestic area code; NRC); (English is Node Area Code to station code; NAC) and personal code work (English is User Code; UC) 4 fields are formed; each field length is 16 bits; wherein national code is represented the first order forwarding label of upper-layer service; domestic area code is represented the second level forwarding label of upper-layer service; station code is represented the third level forwarding label of upper-layer service; personal code work is represented the fourth stage forwarding label of upper-layer service; definition header field length is 8 bits; wherein binary value does not have extension header for " 00000000 " expression; other values keep in the future to be used; it is 8 bits that length field length is filled in definition; be used for filling the length that the DLP payload field is filled when handling with byte form sign; definition frame sequence-number field length is 16 bits; be used for the DLP frame that sends is carried out sequence mark; this field value carries out sequence mark since 0 to the DLP frame that sends, up to maximum, if FSN reaches maximum; send processor and remove the value of register; and count again since 0, send to guarantee that the DLP frame can be transmitted according to correct order; receive and handle, FSN also provides anti-playback simultaneously; definition Security Parameter Index field length is 16 bits; this field is optionally, and its value is arbitrarily, is used in combination the security association that identifies uniquely under this DLP frame with DLP destination address sign indicating number and (Englishly is Security Association; SA); wherein the SPI value is that 0 reservation is given local; specific implementation is used, and metric 1～255 is kept by IANA (IANA is the english abbreviation of Internet Assigned Numbers Authority) and to give use in the future, and other values are determined according to the encrypting and authenticating algorithm of employing by communicating pair; definition payload field length is 0～65535 byte; be used for encapsulating the entire I P bag from network layer, definition padding data (this field is optional) field length is 0～255 byte, and occurrence is relevant with the encrypting and authenticating algorithm of employing; its value is determined by the encrypting and authenticating algorithm; define the verify data that generates when an authentication data field is deposited authentication processing, authentication data field is optionally, and its value is relevant with the identifying algorithm that adopts; its value is determined (generation) by concrete identifying algorithm; the definition frame verification sequence (Frame Check Sequence, FCS) field length is 32 bits, is used for the payload of part header fields content in the data link layer protocol frame (DLP frame) and encapsulation is carried out verification; FCS verification scope comprises: first bit of business type field begins from the DLP frame; until the ending of DLP frame specifically comprises business type field; the topology field; secure fields; the destination address sign indicating number; the source address sign indicating number; extension header; fill length field; number of frames; the Security Parameter Index (if there is); payload; the padding data (if there is); field bit streams such as verify data (if there is) carry out checking treatment, and checking algorithm adopts the CRC-32 of 802.32002 editions definition of IEEE: generator polynomial is G (x)=x 32+ x 26+ x 26+ x 23+ x 22+ x 16+ x 12+ x 11+ x 10+ x 8+ x 7+ x 5+ x 4+ x 2+ x 1+ 1, here, x 32Corresponding MSB position, and x 0Corresponding LSB position is if DLP frame generation fcs error abandons the DLP frame that makes a mistake, if some field value can not be discerned, fcs error perhaps occurs, then think invalid data link layer protocol frame, invalid frame will be dropped, do not notify transmit leg, also do not produce any action, invalid frame comprises:
(1) the DLP frame of received frame generation fcs error (FCS does not match),
(2) received frame length is less than the frame of 30 bytes,
(3) frame that can not discern of business type field,
(4) frame that can not discern of other fields of header,
If network layer does not have the IP bag to need to send, need fill processing at the DLP frame gap, promptly send empty frame, the purpose that sends empty frame is in order to regulate two internodal speed, empty frame sends to its adjacent nearest node from a node, neighbor node is not forwarded to any other place to it after receiving the sky frame, directly it is abandoned, do not notify transmit leg yet, the content of the empty frame of filling that sends at frame gap comprises frame length field, the frame length check field, length is the reserved field (always being set to 0) and the source address sign indicating number (station code and the personal code work field that include only in the source address sign indicating number amount to 4 bytes) of 1 bit, at transmitting terminal, the DLP frame that has encapsulated the IP bag is encapsulated into ethernet mac frame payload field must carries out scrambler before, before any processing of receiving terminal, at first carry out descrambling code to described data link layer protocol frame (DLP frame), could be for further processing to the DLP frame behind the descrambling code, scrambler and descrambling code adopt motor synchronizing scrambler/descrambler, and its generator polynomial is G (X)=X 43+ 1.
5, method according to claim 1, it is characterized in that, comprise a destination address sign indicating number (the English Destination Address Code of being in the described new types of data link layer protocol, DAC) and the source address sign indicating number (English is Source Address Code, SAC) field, for IP data service (IPv4/IPv6), destination address sign indicating number in the described data link layer protocol and source address sign indicating number are represented the purpose IP address of IP bag and the forwarding equivalence class of source IP address respectively, forwarding equivalence class with the IP bag is promptly realized forwarding and the exchange that IP wraps as the destination address sign indicating number and the source address sign indicating number replacement three layers of IP address of described new types of data link layer protocol frame as two layers data-link layer address, for the packet voice business, the destination address sign indicating number of described new types of data link layer protocol and source address sign indicating number are represented the interim identity card (number) of the expression user identity of the telephone number of both call sides or the appointment of network authentication center respectively, the destination address sign indicating number adopts identical hierarchy with the source address sign indicating number, all (English is Country Code by national code for complete destination address sign indicating number and source address sign indicating number, CC), (English is National Region Code to domestic area code, NRC), (English is Node Area Code to station code, NAC) and personal code work (English is User Code, UC) four parts are formed, the present invention defines the destination address sign indicating number and source address code field length is 64 bits (8 eight hytes), wherein the national code field length is 16 bits (2 eight hytes), be used for identifying certain service code of some countries or specific geographical area, CC is the first order forwarding label of corresponding IP bag, can there be one or more service code country or geographic area, as the voice service code, the video traffic code, IP operation code (IP v4 service code or IPv6 service code), the concrete national code value of related service is specified by relevant international standard mechanism such as ITU, the IP operation national code that proposes for the present invention can be that the international area code in the existing telephone coding system also can be other values of other appointment, domestic area code field length is 16 bits, certain regional service code in the indication a state, NRC is the second level forwarding label of IP bag, concrete NRC value is distributed by the communication highest administration mechanism of this state, for this field value of IP operation can be that national distance area code in the present phone number system also can be other values of other appointment, the station code field is 16 bits, identify the service code of certain network node, this yard is the third level forwarding label of IP bag, occurrence is specified by Virtual network operator or Internet service provider, the personal code work field length is 16 bits, indicate certain user's service code, this yard is the fourth stage forwarding label of IP bag, concrete UC value is specified by Virtual network operator or Internet service provider, which country belongs at Network Access Point that adopts described new types of data link layer protocol to realize that internet and Ethernet merge or convergent point according to the purpose IP address that IP wraps, which area of this state, which node and which user's quaternary structure is determined the forwarding equivalence class of IP bag, and the destination address sign indicating number of this value as described new types of data link layer protocol frame, the forwarding that wraps in the network of IP is subsequently determined by the destination address sign indicating number of described new types of data link layer protocol frame, the high speed that substitutes three layers of purpose IP addresses realization IP packet in the IP network with two layers destination address sign indicating numbers is transmitted, during the described new types of data link layer protocol of forwarded frame, at first search the business type field in the described new types of data link layer protocol frame, determine professional priority by concrete type of service, be the national code in the destination address sign indicating number of searching in the described new types of data link layer protocol frame then, next is domestic area code, be station code once more, be personal code work at last, in case a certain item code of finding described new types of data link layer protocol frame is different with local node, network node is no longer handled destination address sign indicating number back field in the described new types of data link layer protocol frame, directly be forwarded to next node, the principle that described new types of data link layer protocol frame is transmitted is to adopt longest match principle, described can be to utilize IP routing protocol such as OSPF (the English Open Shortest Path First of being according to destination address sign indicating number decision route, OSPF) or Border Gateway Protocol (English is Border Gateway Protocol, BGP) dynamic routing table of Chan Shenging also can be that the traffic engineering of utilizing described new types of data link layer protocol to provide is come explicit configuration route.
6, method according to claim 1, it is characterized in that, described new types of data link layer protocol comprises that a cover security mechanism guarantees the safety of upper-layer service in the network transport process, concrete grammar is: (1) utilizes the forwarding equivalence class of IP bag (IPv4 or IPv6) to replace IP (IPv4 or IPv6) address to realize IP (IPv4 or IPv6) thereby the forwarding and the exchange of bag shield real IP (IPv4 or IPv6) address, (2) upper-layer service is encrypted and authentication processing, if desired the IP bag being carried out encrypting and authenticating handles, by a series of negotiation of two ends process of communicating by letter at needs, determine the cryptographic algorithm of employing, identifying algorithm, be provided with or exchange initialization password etc., consulting operations such as encrypting and authenticating algorithm and exchange initialization password can adopt the internet security internet key exchange (english abbreviation is IKE) related and IKMP (english abbreviation is ISAKMP) and RFC2409 definition of RFC2408 definition to realize, set up two security associations (English Security Association of being then at the two ends of communication, SA), and according to purpose IP address, the algorithms that adopt etc. are determined a Security Parameter Index (english abbreviation is SPI), this index value is added in the Security Parameter Index field in the described new types of data link layer protocol frame header, SPI is used for identifying the IP bag is encrypted, security association during authentication processing, the encrypting and authenticating algorithm that Security Parameter Index identifies security association uniquely and adopted with the destination address sign indicating number, simultaneously relevant parameter such as destination address sign indicating number, the IP address, the cryptographic algorithm that adopts, identifying algorithm, the initialization password, Security Parameter Indexs etc. add in the security association database, security association database has write down and security-related various data, it is 32 bits that the present invention defines the SPI field length, wherein decimal value " 0 " is used for node this locality, specific implementation is used, decimal value 1～255 is kept to using in the future by IANA, other values are used to identify security association, owing to encrypt, the different needs of identifying algorithm carries out some data and fills processing, the data of filling are positioned at after the payload field, and a length value of filling adds in the filling length field value, the verify data that authentication processing generates is positioned at after the padding data field before the frame check field, utilize the number of frames field value in the described new types of data link layer protocol (DLP) that anti-reproducing function is provided, when carrying out encryption, the scope of encrypting comprises the entire I P bag from network layer, field contents such as padding data, the scope that authenticates when carrying out authentication processing comprises the filling length field, the number of frames field, the Security Parameter Index field, payload data (entire I P bag), field contents such as padding data.
7; method according to claim 1; it is characterized in that; described new types of data link layer protocol comprises that the perfect network control administrative mechanism of a cover realizes the Topology Discovery that comprises of IP (IPv4 or IPv6) network; 2 layers of protection are switched; the Link State indication; fault management; performance management; configuration managements etc. are in interior control and management; described network control management realizes by control frame; the present invention's definition represents that when the binary value of the business type field of described new types of data link layer protocol frame is " 10000001 " content that described new types of data link layer protocol frame payload field encapsulation is carried is a network control management information; corresponding data link layer protocol frame is a control frame; control frame is realized Topology Discovery; the Link State indication; fault management; performance management; network control and management functions such as configuration management; for annular and network topology; control frame also provides a kind of mechanism that realizes 50 milliseconds of protection switch functions; control frame adopts TLV (Type-Length-Value; type-length-value) structure; type field length is 8 bits; be used for identifying the type of control frame; length field length is 8 bits; be used for representing the length of TLV structure intermediate value (Value) field with the byte form; what value (Value) field comprised control frame has particular contents such as related parameter; it is as shown in table 3 that the present invention defines in the control frame in the TLV structure usage of type field; what represent when wherein type field value is binary " 00010001 " that control frame carries is OSPF (OSPF is the english abbreviation of OSPF) Routing Protocol information; control frame carries the type field binary value is BGP (BGP is the english abbreviation of Border Gateway Protocol) Routing Protocol information for " 00010010 " expression; control frame carries the type field binary value is Signaling System 7(SS-7) (english abbreviation is SS7) information for " 00010011 " expression; what the type field binary value carried for " 00010100 " expression control frame is signaling information H.323; control frame carries the type field binary value is conversation initialized protocol (english abbreviation is SIP) signaling information for " 00010101 " expression; control frame carries the type field binary value is Media Gateway Control Protocol (english abbreviation is MGCP) signaling information for " 00010110 " expression; when being binary " 11111111 ", type field represents that control frame is the self-defining management control frame of manufacturer; the self-defining management function of manufacturer comprises that equipment manufacturers are the self-defining network management control function of network management control function and operator that home built relevant devices is added; its management data content is self-defined by manufacturer; but need to adopt the TLV structure; the number of frames value of described new types of data link layer protocol control frame is used for identifying the sequencing that control frame sends; realize that the described new types of data link layer protocol control information of sign sends the function of sequence successively; the payload information field of described new types of data link layer protocol control frame can comprise a plurality of control TLV information; the realization of chip of the present invention for convenience (is generally adopted 32 as present chip; requiring the control frame total length like this is the integral multiple of 32 bits); requiring the length of The whole control frame is the integral multiple of 32 bits; if originally described new types of data link layer protocol control frame length is not the integral multiple of 32 bits; then fill processing with the byte that is 0 entirely behind control TLV, the length of filling identifies with the byte form with the filling length field of described new types of data link layer protocol control frame.
The usage of type field value in table 3. control frame (binary value) The binary value of type field Usage 00000000 Keep 00000001 The Topology Discovery claim frame 00000010 The Topology Discovery response frame 00000011 Topology report frame 00000100 2 layers of protection switching request frame 00000101 Response frame is switched in 2 layers of protection
00000110 2 layers of protection switch status report frame 00000111 The configuring request frame 00001000 The configuration response frame 00001001 The configuration report frame 00001010 The fault inquiry claim frame 00001011 The fault inquiry response frame 00001100 The Trouble Report frame 00001101 The performance queries claim frame 00001110 The performance queries response frame 00001111 The performance report frame 00010000 WTR_Request (Wait-to-Restore claim frame) 00010001 Routing Protocol---OSPF 00010010 Routing Protocol---BGP 00010011 Signaling---Signaling System 7(SS-7) (english abbreviation is SS7) 00010100 Signaling---H.323 00010101 Signaling---conversation initialized protocol (SIP) 00010110 Signaling---Media Gateway Control Protocol (MGCP) 00010111～11111110 Keep 11111111 Manufacturer's self-defining dedicated network control and management frame
8; method according to claim 7; it is characterized in that; the network control administrative mechanism that described new types of data link layer protocol provides comprises Topology Discovery mechanism; whom Topology Discovery is used for finding out is the neighbor node of network node (DLP node) and the state of neighbor node; can find have what nodes just to do on the ring with it for annular and network topology network node (DLP node) at T; the realization of topology discovery function mainly is to rely on Topology Discovery claim frame (Topology_Discovery_Request frame); Topology Discovery response frame (Topology_Discovery_Response frame) and topology report frame (Topology_State_Report frame) are realized; during installation of project stage or engineering operation; network node (DLP node; as node A) with the L2 address sign indicating number of this node as destination address periodically broadcast topology find that claim frame (Topology_Discovery_Request frame) is to other nodes (claiming that one of them is a Node B); the transmission cycle is by Topology Discovery timer (Timer_Topology_Discovery; it is programmable that transmission is fixed time; default to 2 seconds) determine; all nodes (as Node B) that receive the Topology Discovery claim frame respond for node A by the Topology Discovery response frame; give node A the existence of Node B and state feedback thereof; node A adds contents such as other address of node sign indicating numbers that receive and corresponding work state in the topological database of node A to; for annular and network topology; station code (NAC) the field value content that has artis to go up in each address of node sign indicating number according to ring is determined to encircle upward or the node sequence in the grid; if node A receives the identical operations content from Node B continuous 3 times; then think the Topology Discovery frame efficient in operation of node; relevant topological state content is write the topological database of ingress; network node (DLP node) is reported the state of this node to other nodes (especially network management entity) with topology report frame; particularly for bus topology; star and tree-like this three class are not protected its topological state of node report of the topological structure of switch function owing to the topological structure reason; the present invention defines and represents when type field value is binary value " 00000001 " among the control frame TLV that control frame is the Topology Discovery claim frame; be the Topology Discovery response frame during binary value " 00000010 "; represent during binary value " 00000011 " that control frame is a topology report frame; the Topology Discovery claim frame; the value (Value field value) of Topology Discovery response frame and topology report frame all is two parameters; first is a node address; length is 8 bytes; second is the node operating state; length is 1 byte, and the node operating conditions is as shown in table 4.
Second parameter of table 4. Topology Discovery frame The binary value of second parameter of Topology Discovery frame State 00000111～11111111 Keep 00000110 Forced Switch (Forced Switch, FS) 00000101 The physical signalling inefficacy (Physical Signal Fail, PSF) 00000100 The physical signalling degeneration (Physical Signal Degrade, PSD) 00000011 Manual Switch (Manual Switch, MS) 00000010 Wait-to-Restore (Wait to Restore, WTR)
00000001 Operate as normal (Operation normally) or idle (Idle) 00000000 Initialization (Initiation state) Attention: 1. Forced Switch and Manual Switch state only are used for annular and network topology
9; method according to claim 7; it is characterized in that; the network control administrative mechanism that described new types of data link layer protocol provides comprises 2 layers of wrap protection; 2 layers of protection switched to refer to when the network physical link and broken down (as fibercuts) or the permission of the node device K1/K2 protocol that similar SDH ring adopts when breaking down realizes the power of self-healing recovery in 50 milliseconds; 50 milliseconds of protection switch functions provided by the invention are mainly used in annular or network topology etc. and can realize protecting on the link of switching; with two fine rings is example; if certain node (DLP node on the ring; be assumed to node 2) go up in certain direction (be assumed to from node 1 to node 2 direction) that (its value is programmable 20 milliseconds of times; the default value of the present invention definition is 20 milliseconds) in do not receive any data message and (comprise Frame; control frame; traffic management frame or empty frame etc.) or physical link breaks down (as the fracture of optical fiber facility) or node breaks down (losing efficacy or the physical signalling degeneration as physical signalling); this node enters 2 layers of protection switch status; sending 2 layers of guard mode claim frame (L2PS_Request frame) goes up coupled node (as node 1) for network (ring or network topology); node 1 also enters 2 layers of protection switch status (english abbreviation is L2PS) after receiving these 2 layers of guard mode claim frames; and send 2 layers of protection switch status report frame (L2PS_State_Report frame) and give the node that connects network management entity or be broadcast to all nodes that are in normal state on the ring; in the L2PS attitude; all packets of 2 are switched on the standby path from node 1 to node; if the fault clearance on the node 2; node 2 enters normal state; start WTR (Wait-to-Restore) timer (Timer_WTR; its value is programmable; scope is 0～1800 second; default value is 10 seconds); in case the WTR timer stops; node 2 sends WTR claim frame (WTR_Request frame) along the path before and after switching and gives node 1; node 1 returns normal state from node L2PS attitude after receiving this frame; when being binary " 00000100 ", the type field value that the present invention defines control frame represents that control frame is 2 layers of protection switching request frame; when being binary " 00000101 ", the type field value of control frame represents that control frame is that response frame is switched in 2 layers of protection; when being binary " 00000110 ", the type field value of control frame represents that control frame is that the report frame is switched in 2 layers of protection; 2 layers of protection switching request frame TLV structure intermediate value (Value; V) parameter of field has 2; first is this address of node sign indicating number; length is 8 bytes; second operating state (Forced Switch FS that parameter is this node; physical signalling inefficacy PSF; physical signalling degeneration PSD and Manual Switch); length is 1 byte; the binary value of each state is as shown in table 5; other values of this byte keep to be done to use in the future; the parameter that value field in the response frame TLV structure is switched in 2 layers of protection has two; first is this address of node sign indicating number; length is 8 bytes; second parameter length is 1 byte; wherein binary value is successfully realized switching for " 00000000 " is represented; binary value is switched unsuccessful for " 11111111 " expression; other binary values keep; 2 layers of protection are switched and are reported that value field has three parameters in the frame TLV structure; first parameter is the address of node sign indicating number; length is 8 bytes; second parameter is the reason of switching of node; length is 1 byte; the binary value of each attitude is as shown in table 5; whether the 3rd parametric representation node is in 2 layers of guard mode; wherein binary value is in 2 layers of protection switch status for " 11111111 " expression; binary value is in normal state for " 00000000 " expression; other are worth reservation; when control frame TLV type field value is binary " 00010000 "; the expression control frame is the WTR_Request frame; the WTR_Request frame has only a parameter; length is 8 bits; value is represented successful Wait-to-Restore for binary " 11111111 ", and other are worth reservation.
The 2nd parameter type of table 5.L2PS claim frame and L2PS report frame Binary value State 10000000 Forced Switch (Forced Switch, FS) 00100000 The physical signalling inefficacy (Physical Signal Fail, PSF) 00001000 The physical signalling degeneration (Physical Signal Degrade, PSD) 00000010 Manual Switch (Manual Switch, MS) Other Keep
10, method according to claim 7, it is characterized in that, the network control administrative mechanism that described new types of data link layer protocol provides comprises deployment management mechanism, deployment management mechanism is used for realizing to the relevant configuring ports management of network node (DLP node) equipment, the port address of network node (DLP node) equipment must dispose one two layers address as the source address sign indicating number (SAC) of this port in the installation of project stage, the configuration management frame comprises three kinds: configuring request frame (Configuration_Request frame), configuration response frame (Configuration_ResponseFrame), configuration report frame (Configuration_Report frame), during installation of project stage or engineering operation, network management entity is sent the configuring request frame by network management interface to each link (port) of network node (DLP node) equipment and is configured, the DLP node responds to network management entity by configuration response frame or configuration report frame, the present invention defines when type field value is binary system " 00000111 " value among the control frame TLV and represents that control frame is the configuring request frame, be the configuration response frame during binary system " 00001000 ", represent during binary system " 00001001 " that control frame is the configuration report frame, the configuring request frame comprises two parameters, first is origin node address (length is 8 bytes), second is new node address sign indicating number (length is 8 bytes), the value of configuration response frame (Value field value) comprises three parameters: first is origin node address (length is 8 bytes), second parameter is new node address sign indicating number (length is 8 bytes), the 3rd parameter length is 1 byte, wherein binary value is " 00000000 " expression configuration successful, binary value " 11111111 " expression configuration is unsuccessful, other values keep to give in the future to be used, the configuration report frame comprises two parameters: first is a node address (length is 8 bytes), second parameter length is 8 bytes, represents the configuration address of this node.
11, method according to claim 7, it is characterized in that, the network control administrative mechanism that described new types of data link layer protocol provides comprises fault management mechanism, fault management mechanism is used for realizing the fault management to network node (DLP node), fault management capability is realized by the fault management frame, the fault management frame comprises three: fault inquiry claim frame (Fault_Inquiry_Request_frame), fault inquiry response frame (Fault_Inquiry_Response_frame) and Trouble Report frame (Fault_Report frame), the present invention defines and represents when type field value is binary value " 00001010 " among the control frame TLV that control frame is the fault inquiry claim frame, be the fault inquiry response frame during binary value " 00001011 ", represent during binary value " 00001100 " that control frame is the Trouble Report frame, the fault inquiry claim frame comprises 1 parameter, this parameter is node address (length is 8 bytes), the value of fault inquiry response frame (Value field value) comprises two parameters: first is a node address (length is 8 bytes), second parameter length is that 1 byte is used for representing fault type, wherein binary value is physical signalling inefficacy (PSF) for " 00000000 " expression fault, binary value " 11111111 " expression fault is physical signalling degeneration (PSD), binary value is the normal fault-free of " 00001111 " expression node, other values keep to give in the future to be used, the value field of Trouble Report frame comprises two parameters: first is a node address (length is 8 bytes), second parameter length is that 1 byte is used for representing fault type, wherein binary value is physical signalling inefficacy (PSF) for " 00000000 " expression fault, binary value " 11111111 " expression fault is that physical signalling is degenerated (PSD), and other values keep to give in the future to be used.
12, method according to claim 7, it is characterized in that, the network control administrative mechanism that described new types of data link layer protocol provides comprises performance management mechanism, performance management mechanism is used for realizing the performance management to network node, performance management function through performance management frames realizes, the performance management frame comprises three kinds of frames: performance queries claim frame (Performance_Inquiry_Request_frame), performance queries response frame (Performance_Inquiry_Response frame) and performance report frame (Performance_Report frame), when the control frame type field value is binary " 00001101 ", the expression control frame is the performance queries claim frame, the performance queries claim frame is used for asking to inquire about certain performance index of certain network node, when the control frame type field value is binary " 00001110 ", the expression control frame is the performance queries response frame, the performance queries response frame is used for certain performance index of certain node that response performance query requests frame proposes, when the control frame type field value is binary " 00001111 ", the expression control frame is the performance report frame, the performance report frame is used for reporting to network management entity every performance index of certain node, the value of performance queries claim frame (Value) field comprises three parameters, first parameter is for asking the node address sign indicating number of query performance, length is 8 bytes, second parameter is the time measurement unit that is used for identifying calculation of performance indicators, length is 4 bits, wherein binary " 0001 " expression unit of measurement is second, binary " 0010 " expression unit of measurement is minute, binary " 0011 " expression unit of measurement is hour, binary " 0100 " expression unit of measurement is the sky, other field values keep to using in the future, the 3rd parameter is the performance index type, length is 4 bits, wherein binary " 0001 " expression performance index are Frame Check Sequence mistake number, binary " 0010 " expression number of dropped packets, binary " 0011 " expression packet loss, the time delay (time delay) of binary " 0100 " expression bag, other values keep to give in the future to be used, the value of performance queries response frame (Value) field comprises 4 parameters, first parameter length is 8 bytes, be used for representing node address that the performance queries claim frame is responded, second parameter length is 4 bits, be used for identifying the time measurement unit of calculation of performance indicators, the 3rd parameter length is that 4 bits are used for identifying the performance index type, the 4th parameter length is 3 bytes, be used for representing the performance index value that specifically will inquire about, the value of performance queries response frame (Value) field second the same with the usage of second and the 3rd parameter of value (Value) field of performance queries claim frame with the usage of the 3rd parameter (time measurement unit and performance index type), the value of performance report frame (Value) field comprises 4 parameters, first parameter length is 8 bytes, be used for representing to send the node address of performance report frame to network management entity, second parameter length is 4 bits, be used for identifying the time measurement unit of calculation of performance indicators, the 3rd parameter length is that 4 bits are used for identifying the performance index type, the 4th parameter length is 3 bytes, be used for representing the performance index value that specifically will report, the value of performance report frame (Value) field second the same with the usage of second and the 3rd parameter of value (Value) field of performance queries claim frame with the usage of the 3rd parameter (time measurement unit and performance index type).
13, method according to claim 1, it is characterized in that the traffic engineering that described new types of data link layer protocol provides powerful traffic management mechanism to realize network, method are that at first convection current is classified through all business of network, promptly to miscellaneous service (speech from the upper strata, the IP data, Digital Television, the ethernet mac frame, TDM circuit simulation signals etc.) carrying out priority classification is divided into the business of high priority and the business of low priority, with classification be positioned at two layers data-link layer address (source address sign indicating number and destination address sign indicating number) expression upper-layer service address (destination address and source address) simultaneously to business according to belonging to which country or geographic area, which area of certain country or geographic area, certain node in certain area, certain user of certain node carries out the classification of countries, thereby represents that with the L2 address of classification physical link port L2 address carries out the classification of countries to physical resource, distribute different band width in physical links to be used to transmit dissimilar business simultaneously, the miscellaneous service of the whole network of flowing through is mapped on the actual physical link according to different priority type and region classification, realizes the flow and the band width in physical resource of whole network are unified dispatching management and monitoring by the traffic management frame, specific as follows: at first to classifying from all business of the above level in described new types of data link layer protocol (DLP) sublayer, be divided into the business of high priority and the business of low priority, the business packet includes network managing control information (control frame) of high priority, traffic management information (traffic management frame), various real-time voice services (comprising fixing or mobile voice or video telephone), various real-time videos (Digital Television), real time business based on IP (IPv4/IPv6), PDH and SDH/SONET circuit simulation signal, the business of low priority are general IP data service, and concrete various types of traffic identifies with the business type field value in the described new types of data link layer protocol frame, the destination address sign indicating number and the source address sign indicating number of a classification in described new types of data link layer protocol frame, have been defined, the destination address sign indicating number adopts identical structure with the source address sign indicating number, all by national code, domestic area code, station code and personal code work four parts are formed, and are used for identification service respectively to belong to which country or geographic area, which area in certain country or the geographic area, which node in certain area, which user of which intranodal, for IP operation, destination address sign indicating number and source address sign indicating number are represented the purpose IP address in the IP packet head and the forwarding equivalence class of source IP address respectively, the telephone number of representing both call sides for voice service destination address sign indicating number and source address sign indicating number respectively, represent the address of digital television signal transmitting terminal and receiving terminal respectively for Digital Television (digital video) business purpose address code and source address sign indicating number, for the ethernet mac frame, adopt the circuit such as the PDH of Time Division Multiplexing technology, business purpose address codes such as the circuit simulation signal of SDH/SONET and source address sign indicating number are represented the address of signal sending end and receiving terminal respectively, like this by data-link layer address to miscellaneous service (speech from the upper strata, data, video, Ethernet and TDM circuit simulation signal) carried out the classification of region, miscellaneous service according to different countries or geographic area, certain area in particular country or the geographic area, certain node in the area, certain user of certain node classifies, simultaneously whole physics is transmitted the data-link layer address of one two layers of each node port (each light wave that comprises wavelength-division multiplex system) signs of network, and the different link of regulation is used to transmit business dissimilar and that lead to different regions, the bandwidth resources that whole physics is transmitted network are classified like this, some bandwidth is used to transmit important real time business such as speech and real-time video, some is used to transmit general IP data service, and some bandwidth link is used to transmit international business, and some bandwidth link is used to transmit business transprovincially, some bandwidth link is used to transmit local service, if and network break down allow to transmit the IP data link by the service occupation of high priority, by the traffic management frame of the present invention's definition the flow and the network bandwidth resources of whole network are monitored processing, network management system comprises a traffic engineering database, this data-base recording the link circuit resource distribution situation of whole network, flow through the type of service of network, the overall budget number, total flow, physical link speed, allow parameters such as maximum transfer rate, the present invention defines when the business type field value is set to binary value " 10000010 " in the described new types of data link layer protocol frame header, and what represent described new types of data link layer protocol frame encapsulation is traffic management information, corresponding data link layer protocol frame is the traffic management frame, the traffic management information employing type-length-value of traffic management frame (English is Type-Length-Value, TLV) structure, wherein, type field length is 8 bits, be used to refer to the type of traffic management frame, length field length is 8 bits, is used for length with byte form indicated value (Value) field, value (Value) field comprises concrete traffic management content frame, the usage of network management frame type field is as shown in table 6, and what represent when wherein type field value is binary " 00000001 " among the traffic management frame TLV that traffic management frame payload carries is link traffic flow attribution information, and its value (Value) field contents comprises four parameters, first parameter is a node address, length is 8 bytes, and second parameter is type of service, is used for expression through the type of service under certain node flow bag (grouping), length is 1 byte, the service class offset of dissimilar business determines that by table 2 the 3rd parameter length is that 1 byte is used for identifying the measuring parameter type that flows through certain node link flow, and wherein binary value is peak rate (unit is a bits per second) for " 00000001 " expression flow measurement parameter type, binary value is Mean Speed (unit is a bits per second) for " 00000010 " expression flow measurement parameter type, binary value is that " 00000011 " expression flow measurement parameter type is maximum bag (grouping) number (unit is the bag per second), and binary value is average packet (grouping) number (unit is the bag per second) for " 00000100 " expression flow measurement parameter type, and binary value is peak value burst length (unit is a byte) for " 00000101 " expression flow measurement parameter type, binary value is agreement burst length (unit is a byte) for " 00000110 " expression flow measurement parameter type, binary value is burst excess length (unit is a byte) for " 00000111 " expression flow measurement parameter type, and other values keep to give in the future to be used, and the 4th parameter length is the value that 4 bytes are used for identifying concrete various flows, the Resource Properties of representing various physical links when type field value is binary system " 00000100～00100111 " among the traffic management frame TLV, the types value of various concrete links is as shown in table 6, and the source attribute values of various physical links includes four parameters, and first parameter is a node address, length is 8 bytes, second parameter is type of service, is used for expression through the type of service under certain node flow bag (grouping), and length is 1 byte, the service class offset of dissimilar business is determined by table 2, the 3rd parameter length is that 1 byte is used for identifying the measuring parameter type that flows through certain node link flow, and wherein binary value is peak rate (unit is a bits per second) for " 00000001 " expression flow measurement parameter type, and binary value is Mean Speed (unit is a bits per second) for " 00000010 " expression flow measurement parameter type, binary value is that " 00000011 " expression flow measurement parameter type is maximum bag (grouping) number (unit is the bag per second), binary value is average packet (grouping) number (unit is the bag per second) for " 00000100 " expression flow measurement parameter type, and binary value is peak value burst length (unit is a byte) for " 00000101 " expression flow measurement parameter type, and binary value is agreement burst length (unit is a byte) for " 00000110 " expression flow measurement parameter type, binary value is burst excess length (unit is a byte) for " 00000111 " expression flow measurement parameter type, other values keep to give in the future to be used, and the 4th parameter length is the value that 4 bytes are used for identifying concrete various flows, and the number of frames value of described new types of data link layer protocol traffic management frame is used for identifying the sequencing that the traffic management frame sends, realize that the described new types of data link layer protocol flow control management information of sign sends the function of sequencing, the payload information field of described new types of data link layer protocol traffic management frame can comprise a plurality of traffic management TLV information, for convenience the realization (generally adopt 32 as present chip, requiring traffic management frame total length like this is the integral multiple of 32 bits) of chip of the present invention, the length that requires whole traffic management frame is the integral multiple of 32 bits, if originally described new types of data link layer protocol traffic management frame length is not the integral multiple of 32 bits, then behind traffic management TLV, fill processing with the byte that is 0 entirely, the length of filling identifies with the byte form with the filling length field of described new types of data link layer protocol traffic management frame.
The usage of table 6. traffic management frame type field The binary value of type field Usage 00000000 Keep 00000001 The link traffic flow attribution 00000010 10Mbps ethernet link attribute 00000011 100Mbps ethernet link attribute 00000100 10/100Mbps ethernet link attribute 00000101 The gigabit ethernet link attribute 00000110 10Gb/s ethernet link attribute 00000111 The STM-0SDH link attribute 00001000 STM-1/OC-3c SDH link attribute 00001001 STM-4/OC-12c SDH link attribute 00001010 STM-16/OC-48c SDH link attribute 00001011 STM-64/OC-192c SDH link attribute 00001100 STM-256/OC-768c SDH link attribute 00001101 64 kilobits/second physical link attributes 00001110 1544 kilobits/second PDH link attributes 00001111 2048 kilobits/second PDH link attributes 00010000 6312 kilobits/second PDH link attributes 00010001 8448 kilobits/second PDH link attributes 00010010 34368 kilobits/second PDH link attributes 00010011 44736 kilobits/second PDH link attributes 00010100 139264 kilobits/second PDH link attributes 00010101 IEEE 802.11a link attribute 00010110 IEEE 802.11b link attribute 00010111 IEEE 802.11g link attribute 00011000 IEEE 802.11h link attribute 00011001 The GSM link attribute 00011010 IEEE 802.16a (2-11GHz) link attribute 00011011 IEEE 802.16c (10-66GHz) link attribute 00011100 The WCDMA link attribute 00011101 The TD-SCDMA link attribute 00011110 The CDMA2000 link attribute 00011111 The DVB link attribute 00100000 The MPEG-1 link attribute 00100001 The MPEG-2 link attribute
00100010 The MPEG-3 link attribute 00100011 The isdn link attribute 00100100 The adsl link attribute 00100101 The VDSL link attribute 00100110 Other xDSL link attributes 00100111～11111111 Keep
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CN114499793A (en) * 2020-10-27 2022-05-13 中国移动通信集团设计院有限公司 Method and device for screening data of signaling monitoring after centralization of large-area center
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