CN1731759A - Multi-address connectionless data network packet package method in IP telecommunication network - Google Patents
Multi-address connectionless data network packet package method in IP telecommunication network Download PDFInfo
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Abstract
This invention discloses a method for packaging grouped multi-address non-link data net in IP electric communication system, which comprises the following steps: a, based on either data grouping or control grouping, edge juncture device setting the value of grouping class field; b, according the property of load business net the edge juncture device deciding type of business and setting value of business class field; c, the edge juncture device deciding whether the data group needs headline compressing, if it needs, into step d, or into step g; d, deciding 1x The value of first pack label field; e, deciding the value of headline compression field; f, setting the value of flow order number; g, setting source address and aim address. The invention provides convenience to IP communication net system.
Description
Technical field
The present invention relates in a kind of IP Telecommunication Network system multiple location does not have the method for packing that connects the data network grouping, belongs to communication technical field.
Background technology
According to the development trend of Next Generation Telecommunication Networks, the present inventor has proposed the notion of IP Telecommunication Network, and applied for patent of invention (number of patent application: 200410037641.0, patent application day: on April 28th, 2004).In this IP Telecommunication Network system, has the IP network that does not have connection data network (abbreviating the NCT data network as) and conduct " outer net " as the multiple location of " Intranet ".
This IP Telecommunication Network system is based on the connectionless system of IP agreement.As shown in Figure 1, this IP Telecommunication Network system comprises at least one NCT data network, most IP networks, and most edge gateway equipment ED.Here said IP network includes but not limited to IP metropolitan area network, Access Network or the local network of users, and it is connected with the NCT data network by edge gateway equipment ED; Also comprise at least one address mapping device ADT in each NCT data network; All devices in the NCT data network and edge gateway equipment all are assigned a NCT data network address, all devices in the IP network and edge gateway equipment ED are assigned the IP address, and the mapping relations between IP address and the NCT data network address are kept among the interior address mapping table of address mapping device ADT; Connect between the authenticated and address mapping device ADT of edge gateway equipment ED.The NCT data network is as " Intranet ", adopt architecture with the similar level type of existing switching network for communication, it is made up of core layer equipment CR, convergence-level equipment MR, access layer equipment AR, network management device and address mapping device ADT, communicates by letter by core layer equipment CR realization separately between each NCT data network.Carry out addressing in the inner address of NCT data network of adopting of NCT data network itself, this data network address is different from the IP address of IP network.
Address mapping device ADT equipment is the equipment of realizing map addresses on the network, and it preserves address mapping table.The content-dependent of address mapping table is in the type of the external network that links to each other with edge gateway equipment.Edge gateway equipment ED is the gateway device that IP network is connected with the NCT data network.
In the NCT data network, can realize VPN (being called for short VPN), multicast effectively, simultaneously, also can compress the header that divides into groups.But existing frame structure as the frame structure in the agreements such as IPv6, can't be realized these above-mentioned functions.Therefore, need provide a kind of new frame structure and utilize this frame structure to realize these functions of NCT data network.
Summary of the invention
The purpose of this invention is to provide a kind of method that grouping encapsulates to NCT in the IP Telecommunication Network system, utilize this method can obtain being convenient in the NCT data network, to carry out the orderly transmission of packet and provide to comprise that the NCT that virtual support private network (VPN), multicast and header-compressed are operated divides into groups.
For realizing above-mentioned goal of the invention, the present invention adopts following technical scheme:
Multiple location does not have the method for packing that connects the data network grouping in a kind of IP Telecommunication Network system, it is characterized in that may further comprise the steps:
A: edge gateway equipment is set the value of packet class field according to being packet or control grouping;
B: edge gateway equipment decides type of service according to the characteristic of its bearer service net, sets the value of traffic class field;
C: edge gateway equipment determines whether the packet that enters needs to carry out header-compressed, then enters step D if desired, otherwise forwards step G to;
D: the value of determining the first packet tag field;
E: the value of determining the header-compressed field;
F: set stream sequence number value;
G: set source address and destination address.
After step B, further may further comprise the steps:
C1) whether the grouping of edge gateway equipment judgment data is to belong to some VPN, if then change step C2 over to); If not, then change step C over to;
C2) value of setting VPN tag field;
C3) value of setting VPN number field; Change step F over to.
At step C3) in comprise, for the set of VPN tag field, and have homology, same destination address, do not have the grouping of the data network of connection with the multiple location of professional classification, extension header tag field set with this grouping, different VPN number value on the mark, and the VPN number field is placed in the extension header.
Perhaps, after step B, further may further comprise the steps:
C11) edge gateway equipment ED determines whether the packet that enters is to belong to some multicast groups, if then change step C12 over to); If not, then change step C over to;
C12) value of setting multicast tag field;
C13) value of setting multicast address field is put into destination address field (DAF);
C14) value of setting first packet tag field; If the grouping of the first packet of multicast service, then next step forwards step C15 to), if not then entering step F);
C15) set the value of header field, and change step F over to).
The multiple location that in the described header field is whole destination edge gateway equipments does not have the data of connection net address.
Wherein, if initiate the multicast source end points of multicast service request is the interior node of IP network, then this multicast source end points sends the IP network multicast address according to the IP agreement, address mapping device does not have the contingency table that is connected between the data network multicast address according to the IP multicast address of its preservation with multiple location, determine that multiple location do not have the multicast address that connects in the data network, transfer to edge gateway equipment and this multiple location is not had connect the data network multicast address and be encapsulated into multiple location and do not have in the destination address field (DAF) that connects the data network grouping;
Perhaps, if initiate the multicast source end points of multicast service request is that multiple location does not have the node that connects in the data network, then do not have the node that connects in the data network and send multicast service request to address mapping device by multiple location, providing multiple location by address mapping device does not have and connects the data network multicast address, and edge gateway equipment does not have this multiple location and connects the data network multicast address and be encapsulated into multiple location and do not have in the destination address field (DAF) that connects the data network grouping.
At end margin gateway device place, source, to same source address, same destination address, with the first packet grouping of professional classification, with the set of first packet mark, the not set of packed compressed mark, and compose with stream sequence number determined value;
To same source address, same destination address, with the follow-up grouping of professional classification, with the not set of first packet mark, packed compressed mark set, and set stream sequence number value.
At end margin gateway device place, source, to same source address, same destination address, with the first packet grouping of professional classification, the IP grouping does not have complete the putting into of load that connects the data network grouping as multiple location; To same source address, same destination address, with the follow-up grouping of professional classification, multiple location does not have the load of only putting into the IP grouping in the load that connects the data network grouping, does not comprise the IP header.
The NCT grouping that the method for the invention obtains can adapt to the needs of the distinctive double address structure of IP Telecommunication Network system, distinctive header-compressed field, multicast field and VPN field aim at this type of business setting on it, provide convenience for the IP Telecommunication Network system carries out this type of business.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the composition structural representation of IP Telecommunication Network system.
Fig. 2 is the exemplary plot of a kind of embodiment of NCT packet format.
Fig. 3 is the flow chart of the packet encapsulation method in the NCT data network of the present invention.
Embodiment
In the IP Telecommunication Network system, IP network separates with the strictness on topological structure of NCT data network.Each IP network connects with one of them NCT data network separately, and and this NCT data network between the relation of breaking the wall of mistrust.Connection between the NCT data network with each independently IP network couple together, realize the communication between the IP network.
What transmit in the NCT data network in the IP Telecommunication Network system is the NCT grouping.Introduce the form of NCT grouping below earlier, the method for packing of NCT grouping is described then.At last, NCT transmission packets process also will be described.
With reference to Fig. 2, the header of NCT grouping of the present invention comprises following field: version number, packet class, traffic category, professional classification, header-compressed mark, first packet mark, VPN mark, multicast mark, address size, block length, stream sequence number, source address, destination address and extension header.
Version number refers to the version of NCT agreement, and present version number is 1.
After the version number is the packet class field of 2 bits.When the packet class value is 0, represent that this NCT is grouped into packet, being illustrated in what put in the load is user data; If value is 1, represent that then this NCT is grouped into the control grouping, be control command in the expression load, all the other values keep.
The traffic category field of 2 bits after the packet class, the classification of expression information flow.Be exemplified below:
00 needs the absolute resource (not carrying out statistic multiplexing) that guarantees
The resource of 01 high-quality statistic multiplexing (definitely guarantee appointment data speed, but allow data rate to exceed the quata)
10 guarantee the resource (4: 1 multiplexing ratios can guarantee appointment data speed substantially) of general statistic multiplexing
11 provide the transfer capability of " doing one's best "
It after packet class the business classification of 4 bits.Professional classification comes together to represent different business with traffic category.Be exemplified below:
Traffic category=00 o'clock, the business of professional classification expression:
0000 emergency communication
The VPN of the 0001 absolute resource that guarantees
0010 multimedia conversation business
0011 multimedia conference service
0100 multimedia retrieval business (streaming media service)
0101 multimedia is monitored in real time, monitoring business
Traffic category=01 o'clock, the business of professional classification expression:
0000 emergency communication
The VPN of the resource of 0001 high-quality statistic multiplexing
Traffic category=10 o'clock, the business of professional classification expression:
0000 emergency communication
0001 guarantees the VPN of the resource of general statistic multiplexing
0010 multimedia messaging service (multimedia mail service)
Traffic category=11 o'clock, the business of professional classification expression:
0000 provides the VPN of the transfer capability of " doing one's best "
0001-0111 keeps
The header-compressed field is positioned at after the professional classification, long 1 bit.Represent during its not set that header does not compress; Header-compressed is represented in set.
Ensuing 1 bit is the first packet sign, and expression has the first packet of the grouping of same source, identical destination address, same stream classification and identical services classification.
The grouping of NCT data network also represents by being positioned at first packet sign 1 bit VPN tag field afterwards whether this grouping is the VPN grouping.For example, represent that when the set of VPN mark this grouping is the VPN grouping.
The multicast tag field of 1 bit is positioned at after the VPN mark, represents that by set this grouping is a multicast packets; Otherwise expression is non-multicast packets.
Because therefore the source address and the destination address variable-length of NCT grouping, are provided with the address length field of 2 bits after the multicast mark.Address size is 0 o'clock, and expression source address and destination address are 32 bits; Address size is 1 o'clock, and expression source address and destination address are 64 bits; Address size is 2 o'clock, and expression source address and destination address are 96 bits; Address size is 3 o'clock, and expression source address and destination address are 128 bits.In the present embodiment, the default value of address size is 2, that is, source address and destination address length are 64 bits.
Next be the block length field of 16 bits, can represent that maximum packet is the 64K byte.
Long 24 bits of stream sequence number field are positioned at after the block length.When it was used for header-compressed, expression had the order of each grouping of same source, identical destination address, same stream classification and identical services classification.
Source address and destination address are meant the address in the NCT data network, are variable lengths, and default value in the present embodiment is 64 bits.
Extension header is used as required.With hereinafter to explaining the effect of extension header in multicast service and vpn service in the explanation of packet encapsulation method.
The maximum length of load is the 64K byte.
Below according to Fig. 3 and aforementioned NCT packet format, in conjunction with concrete operation flow such as the concrete method of carrying out the NCT packet encapsulation of explaining such as VPN, multicast.
If the source end at IP network, is then encapsulated by the described method of present embodiment according to the content of source end grouping by ED, form the NCT grouping.Source end ED receives the IP grouping of IP network, and the IP destination address in the IP grouping is delivered to ADT; ADT carries out the IP destination address of IP network and address resolution and the mapping between the NCT address, with the NCT address loopback of the destination ED that obtains to source end ED; Source end ED adds the NCT header according to the NCT address of loopback in the IP grouping, it is become the NCT grouping, again this grouping is sent to destination ED; Destination ED receives the NCT grouping, is converted to the IP grouping equally, and transmits this grouping according to purpose IP address to IP network.
If the source end is the node in the NCT data network, then node divides into groups according to the described method encapsulation of present embodiment NCT thus.
NCT packet encapsulation method may further comprise the steps:
1) edge gateway equipment ED sets the value of packet class field according to being packet or control grouping.
2) edge gateway equipment ED decides type of service according to the characteristic of its bearer service net, and type of service is made up of the packet class field of 2 bits and the professional sorting field of 4 bits, and the former is the professional big class of decision, and the latter is professional disaggregated classification.Professional classification comes together to represent different business with traffic category.
21) edge gateway equipment ED determines that whether the packet that enters needs to carry out header-compressed, VPN or multicast, then enters step 3), 31 respectively), 32); If be not, then directly jump to step 6).
3) determine the value of first packet tag field.Judge at first whether this grouping is first packet, if, just to the set of first packet tag field; If not, then not set.For the first packet grouping, in its load, to put into complete IP grouping during encapsulation.Here, complete IP grouping is meant IP header and load.
4) determine the value of header-compressed field.For the not grouping of set of first packet tag field, then basis IP source address, IP destination address and service category information wherein is defined as the follow-up grouping of certain first packet, judges as required more whether it will compress.If compression, then header-compressed field set, expression NCT grouping are the groupings through header-compressed.For the not grouping of set of this type of first packet tag field, in its load, have only the payload segment of IP grouping, do not contain the IP header.
5) set stream sequence number value.During encapsulation, with homogeneous turbulence sequence number not represent homology, same destination address, with the order of the grouping of professional classification.When NCT divides assembly and disassembly,, in the mapping table of stream sequence number value and IP header, get corresponding IP header according to the value of stream sequence number.
6) value of setting destination address and source address.Destination address and source address are meant the NCT address of destination ED equipment and the NCT address of source end ED respectively.
In addition, in step 21) in judge that loaded service is a vpn service, then in step 21) also have following steps afterwards:
31) value of setting VPN tag field.To the set of VPN identification field,, be illustrated in the grouping that transmits in the NCT net and belong to the VPN grouping the set of extension header identification field.Next enter step 33), distinguish with the VPN number field each VPN grouping is respectively to belong to which VPN.
33) value of setting VPN number field.For have homology, same destination address, with professional classification, and the NCT of VPN tag field set grouping also will be determined the value of VPN number field when encapsulation, the VPN number field is placed in the extension header.This VPN numbering is unique in a NCT data network.
After above-mentioned steps is finished, change step 5) over to, set the value of stream sequence number.At last, change step 6) over to, the value of target setting address and source address.
If in step 21) in judge that loaded service is a multicast service, then in step 21) also have following steps afterwards:
32) value of setting multicast tag field.To the set of multicast tag field, what expression sent is multicast service, and changes step 34 over to).
34) if the first packet of multicast service divides into groups, set the value of first packet tag field, change step 36 over to); If not first packet, then only the multicast tag field is set value.Then, change step 5) over to.
36) value of setting header field.If the grouping of the first packet of multicast service then also needs extension header is set value.Be the NCT address of whole destinations (leaf node) ED in the multicast extension header, change step 5) then over to.
All the NCT address of destination (leaf node) ED is to be provided by ADT.
Step 5) is set the work of the stream sequence number of multicastapackets, then, changes step 6) over to.
In step 6), the D class address in the similar IP agreement of multicast address, the NCT multicast address in the expression NCT net.Send the IP network multicast address by multicast source end points in the IP network of initiating multicast service request according to the IP agreement, ADT is according to the IP multicast address of its preservation and the contingency table between the NCT multicast address, determine the multicast address in the NCT net, transfer to ED equipment this NCT multicast address is encapsulated in the destination address field (DAF) of NCT grouping.If initiate the multicast source end points of multicast service request is the interior node of NCT data network, then send multicast service request and give ADT by the node in the NCT data network, provide the NCT multicast address by ADT, ED equipment is encapsulated into this NCT multicast address in the destination address field (DAF) of NCT grouping.
Below, specifically explain the application of field in IP Telecommunication Network system communication that header-compressed, VPN, multicast are correlated with in the NCT grouping.
Owing to adopt the double address structure in the IP Telecommunication Network system: NCT data network address and IP network address need to introduce the expense that header-compressed reduces the dual address that imports because of the double address structure.The concrete grammar of header-compressed is as follows:
1. the header in the NCT grouping is provided with first packet mark, packed compressed mark, stream sequence number.
2. the IP grouping that transmits for needs, at end ED place, source, to same source address, same destination address, with the first packet grouping of professional classification, with the set of first packet mark, the not set of packed compressed mark, and compose with stream sequence number determined value, in the NCT grouping that correspondence generates, the IP grouping that this is complete is as complete the putting into of load of NCT grouping.
To same source address, same destination address, with the follow-up grouping of professional classification, with the not set of first packet mark, packed compressed mark set, and set stream sequence number value.In homology, same destination address, load, only put into the load of IP grouping, do not contain the IP header with the follow-up NCT grouping of professional classification.
4. at destination ED place, to receiving NCT grouping carrying out dismounting.For the NCT grouping of the set of first packet mark, the not set of packed compressed mark, the IP header that flows sequence number value and take out from load is shone upon, and preserve mapping table at purpose ED place.Destination ED recovers the IP grouping according to the value of stream sequence number.To the not set of first packet mark that receives, the grouping of packed compressed mark set, value according to the stream sequence number, from stream sequence number and IP header mapping table, take out corresponding IP header, be assembled into complete IP grouping with the load of the IP grouping of from the load of follow-up NCT grouping, taking out, and put into the transmit queue of ED.
Like this, in the IP Telecommunication Network system, for homology, same destination address, for the grouping of professional classification, in NCT data network inside, the IP header only transmits once at first packet, has realized header-compressed, saves address overhead.
In order to realize multicast service, the multicast in the IP Telecommunication Network system will inter-network (IP network and NCT data network).Data network in the IP Telecommunication Network system comprises two types of multicasts: Client-initiated multicast in (1) IP network; (2) user initiates multicast to nms application.
Main frame in multicast source is IP network, multicast member are under the situation of main frame in the IP network, realize that this multicast comprises the steps:
(1) the multicast source end points obtains the IP network multicast address according to the program of application multicast address in the IP network;
(2) the multicast source end points sends the multicast notice packet to network; In the multicast notice, include the IP network multicast address.
(3) the multicast notice packet arrives the source end ED that is attached thereto, and this ED sends out the multicast application to address mapping device ADT, simultaneously the IP network multicast address in ADT transmission multicast notice;
(4) after address mapping device ADT receives the multicast application that ED sends, postback multicast application response to ED, and the multicast address of correspondence in the NCT net that after map addresses, obtains of passback;
Owing in address mapping device ADT, there is mapping relations table between IP address and the NCT address, by this table just can obtain with the corresponding NCT data network of IP network multicast address in the NCT multicast address.
(5) end ED in source sets the value of multicast address field according to the NCT multicast address, and the multicast mark is carried out set, sets source address and destination address, and sends the multicast notice packet.If first packet, then in the multicast first packet, put into complete IP header, complete multicast extension header and the load of IP grouping, have the NCT address of whole destination edge gateway equipments in the multicast extension header.If subsequent packet then will be determined the value of multicast address, and only in subsequent packet, put into the load of IP grouping.
(6) send multicast according to the IP network multicast address in the multicast notice to network with multicast destination that source endpoint is in identical IP network and add application; Be in the multicast destination ED of different IP networks with source endpoint,, then after receiving multicast notice NCT grouping, take out the load of IP header complete in the multicast first packet and IP grouping, and form multicast notice IP grouping if having the NCT address in the header field.And destination ED sends multicast notice IP grouping according to the multicast address in the IP header to IP network.It also will set up the mapping table of multicast address and IP header, and when receiving subsequent packet, the mapping table according to multicast address and IP address finds the IP header; And the grouping of the IP in taking-up subsequent packet load, form complete multicast notice IP grouping, send to IP network.
(7) the multicast destination in the IP network sends multicast adding application according to the IP network multicast address in the multicast notice IP grouping to network.
(8) multicast adds the ED that application grouping arrival is connected with destination, and ED sends multicast to ADT and adds application;
(9) after ADT receives that multicast adds application, preserve the NCT address of this IP multicast address and destination ED, thereby form the NCT address of complete NCT multicast address and whole destination ED.
More than be exactly the multicast source end points be the method that realizes multicast in the IP network during main frame.During node in the multicast source end points is the NCT data network, also need to finish address transition work through ED and ADT, implementation step is the same, different places only be that multicast address is converted to the multicast address of NCT data network by IP multicast address.
In order in the IP Telecommunication Network system, to set up VPN, in the NCT grouping, be provided with special-purpose field: VPN identification field and VPN number field for realization VPN.Before address, the VPN identification field is illustrated in the grouping that transmits in the NCT net and whether belongs to some VPN, the VPN number field represents then which VPN this grouping belongs to.Introduce the effect of these two fields below in conjunction with the implementation procedure of VPN.
The overall procedure of realizing VPN in the IP Telecommunication Network system comprises following step:
(1) user proposes the application set up VPN to network management device, and submits to and set up the required flow of this VPN, flow chart;
(2) do you judge it is the VPN of which kind of type according to flow, flow chart?
If NCT is VPN, its flow, flow chart are flow, the flow charts between the ED, change step (4) over to; If IP is VPN, then flow, flow chart are flow, the flow chart of node in the IP network, change step (3) over to;
(3) network management device obtains the address of the ED that each IP network node connects by ADT, and this flow, flow chart are converted into flow, flow chart between each ED, changes step (4) over to;
(4) further judge whether to determine the resource of link by webmaster?
(5) if determine the resource of link by webmaster, then network management device calculates link circuit resource demand schedule between respective nodes according to described flow, flow chart, and send the link circuit resource configuration order comprise the VPN numbering according to the node device of result of calculation in the NCT data network, set up VPN in view of the above;
(6) if can't help webmaster determines the resource of link, then network management device sends the VPN configuration order according to flow, flow chart to relevant ED, and source end ED sends the VPN configuring request according to the route of NCT data network to destination ED, sets up VPN in view of the above.
Among communication process,, then comprise the steps: if NCT is VPN
Source end ED sends the NCT grouping to destination ED, and when NCT grouping arrival source end ED, source end ED sends to ADT and has destination ED address, the isoparametric map addresses request command of class of service.
ADT receives the map addresses request command, and when judging that end ED address, source and destination ED address belong to a VPN together, ADT promptly has parameter response orders such as VPN numbering, class of service and destination ED address to source end ED hair band.
Source end ED receives parameter response orders such as having VPN numbering, class of service and destination ED address, forms the NCT grouping that has fields such as VPN mark, VPN numbering, class of service, data load, and it is sent to destination ED.
Node devices such as AR, the MR in the NCT net, CR, VPN mark, the VPN numbering of dividing into groups by NCT are sent to destination ED with the NCT grouping.
Destination ED receives NCT grouping, after unpacking it is mail to the destination IP network.
If IP is VPN, then communication process comprises the steps:
Source end IP device sends the IP grouping to destination IP equipment.
When IP grouping arrival source end ED, source end ED sends to ADT and has the isoparametric map addresses request command in destination IP address.
ADT receives the map addresses request command, and when belonging to a VPN together as end IP address, source and destination IP address, ADT promptly sends to source end ED and has parameter response orders such as VPN numbering, class of service and destination ED address.
Source end ED receives parameter response orders such as having VPN numbering, class of service and destination ED address, forms the NCT frame that has VPN numbering, class of service, and it is sent to destination ED.
Node devices such as AR, the MR in the NCT net, CR, the parameters such as VPN numbering, class of service, destination ED address of press the NCT frame transmit in VPN arranges the scope of resource of assignment.
Destination ED receives the NCT grouping, and the destination IP address is recovered out, and reorganization IP grouping is mail to destination with it.
The implementation procedure of the concrete communication service of top combination is illustrated the method for packing of NCT grouping in the IP Telecommunication Network system, but obvious specific implementation form of the present invention is not limited thereto.For the those skilled in the art of present technique neck field, the various conspicuous change of under the situation of spirit that does not deviate from the method for the invention and claim scope it being carried out is all within protection scope of the present invention.
Claims (9)
1. answer the method for packing that the location does not have the grouping of connection data network in an IP Telecommunication Network system, it is characterized in that may further comprise the steps:
A: edge gateway equipment is set the value of packet class field according to being packet or control grouping;
B: edge gateway equipment decides type of service according to the characteristic of its bearer service net, sets the value of traffic class field;
C: edge gateway equipment determines whether the packet that enters needs to carry out header-compressed, then enters step D if desired, otherwise forwards step G to;
D: the value of determining the first packet tag field;
E: the value of determining the header-compressed field;
F: set stream sequence number value;
G: set source address and destination address.
2. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 1 system, it is characterized in that:
After step B, further may further comprise the steps:
C1) whether the grouping of edge gateway equipment judgment data is to belong to some VPN, if then change step C2 over to); If not, then change step C over to;
C2) value of setting VPN tag field;
C3) value of setting VPN number field; Change step F over to.
3. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 2 system, it is characterized in that:
At step C3) in comprise, for the set of VPN tag field, and have homology, same destination address, do not have the grouping of the data network of connection with the multiple location of professional classification, extension header tag field set with this grouping, different VPN number value on the mark, and the VPN number field is placed in the extension header.
4. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 1 system, it is characterized in that:
After step B, further may further comprise the steps:
C11) edge gateway equipment ED determines whether the packet that enters is to belong to some multicast groups, if then change step C12 over to); If not, then change step C over to;
C12) value of setting multicast tag field;
C13) value of setting multicast address field is put into destination address field (DAF);
C14) value of setting first packet tag field; If the grouping of the first packet of multicast service, then next step forwards step C15 to), if not then entering step F);
C15) set the value of header field, and change step F over to).
5. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 4 system, it is characterized in that:
The multiple location that in the described header field is whole destination edge gateway equipments does not have the data of connection net address.
6. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 5 system, it is characterized in that:
If initiate the multicast source end points of multicast service request is the interior node of IP network, then this multicast source end points sends the IP network multicast address according to the IP agreement, address mapping device does not have the contingency table that is connected between the data network multicast address according to the IP multicast address of its preservation with multiple location, determine that multiple location do not have the multicast address that connects in the data network, transfer to edge gateway equipment and this multiple location is not had connect the data network multicast address and be encapsulated into multiple location and do not have in the destination address field (DAF) that connects the data network grouping.
7. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 5 system, it is characterized in that:
If initiate the multicast source end points of multicast service request is that multiple location does not have the node that connects in the data network, then do not have the node that connects in the data network and send multicast service request to address mapping device by multiple location, providing multiple location by address mapping device does not have and connects the data network multicast address, and edge gateway equipment does not have this multiple location and connects the data network multicast address and be encapsulated into multiple location and do not have in the destination address field (DAF) that connects the data network grouping.
8. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 1 system, it is characterized in that:
At end margin gateway device place, source, to same source address, same destination address, with the first packet grouping of professional classification, with the set of first packet mark, the not set of packed compressed mark, and compose with stream sequence number determined value;
To same source address, same destination address, with the follow-up grouping of professional classification, with the not set of first packet mark, packed compressed mark set, and set stream sequence number value.
9. multiple location does not have the method for packing that connects the data network grouping in the IP Telecommunication Network as claimed in claim 8 system, it is characterized in that:
At end margin gateway device place, source, to same source address, same destination address, with the first packet grouping of professional classification, the IP grouping does not have complete the putting into of load that connects the data network grouping as multiple location; To same source address, same destination address, with the follow-up grouping of professional classification, multiple location does not have the load of only putting into the IP grouping in the load that connects the data network grouping, does not comprise the IP header.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100705028A CN100393065C (en) | 2004-08-05 | 2004-08-05 | Multi-address connectionless data network packet package method in IP telecommunication network |
| PCT/CN2005/000594 WO2005107161A1 (en) | 2004-04-28 | 2005-04-28 | A system and communication method of ip telecommunication network and its application |
| EP05752258A EP1748600A4 (en) | 2004-04-28 | 2005-04-28 | A system and communication method of ip telecommunication network and its application |
| US11/587,810 US7894458B2 (en) | 2004-04-28 | 2005-04-28 | System and communication method of IP telecommunication network and its application |
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| CNB2004100705028A CN100393065C (en) | 2004-08-05 | 2004-08-05 | Multi-address connectionless data network packet package method in IP telecommunication network |
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| CN100393065C CN100393065C (en) | 2008-06-04 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102238164A (en) * | 2011-01-18 | 2011-11-09 | 北京中京创原通信技术有限公司 | Internet protocol (IP) telecommunication network-oriented multi-protocol message adaptation method |
| CN101820401B (en) * | 2009-02-27 | 2012-03-21 | 北京中京创原通信技术有限公司 | Edge gateway equipment used for IP telecom network system and implementation method thereof |
| CN101902386B (en) * | 2009-05-31 | 2012-07-11 | 北京中京创原通信技术有限公司 | Packing method of virtual private network control message in IP telecommunication network system |
| CN102724133A (en) * | 2012-06-29 | 2012-10-10 | 杭州华三通信技术有限公司 | Method and device for transmitting internet protocol (IP) message |
| CN101764825B (en) * | 2010-02-08 | 2012-12-19 | 成都市华为赛门铁克科技有限公司 | Data transmission method of virtual private network, system thereof, terminal thereof and gateway equipment thereof |
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| CN102238163B (en) * | 2011-01-18 | 2014-08-27 | 张�杰 | IP (Internet Protocol) telecommunication network-oriented multi-protocol message transmitting method |
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| US20020186683A1 (en) * | 2001-04-02 | 2002-12-12 | Alan Buck | Firewall gateway for voice over internet telephony communications |
| CN1161931C (en) * | 2001-06-18 | 2004-08-11 | 华为技术有限公司 | Radio Three layer tunnel spare and burden sharing method |
| CN1180581C (en) * | 2001-07-18 | 2004-12-15 | 华为技术有限公司 | Tunnel encapsulation method for wireless VPN |
| JP2004088658A (en) * | 2002-08-28 | 2004-03-18 | Nippon Telegr & Teleph Corp <Ntt> | Packet transfer apparatus and packet processing method |
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| CN101820401B (en) * | 2009-02-27 | 2012-03-21 | 北京中京创原通信技术有限公司 | Edge gateway equipment used for IP telecom network system and implementation method thereof |
| CN101902386B (en) * | 2009-05-31 | 2012-07-11 | 北京中京创原通信技术有限公司 | Packing method of virtual private network control message in IP telecommunication network system |
| CN101764825B (en) * | 2010-02-08 | 2012-12-19 | 成都市华为赛门铁克科技有限公司 | Data transmission method of virtual private network, system thereof, terminal thereof and gateway equipment thereof |
| CN102238164A (en) * | 2011-01-18 | 2011-11-09 | 北京中京创原通信技术有限公司 | Internet protocol (IP) telecommunication network-oriented multi-protocol message adaptation method |
| CN102238164B (en) * | 2011-01-18 | 2015-06-03 | 济南纳维信息技术有限公司 | Internet protocol (IP) telecommunication network-oriented multi-protocol message adaptation method |
| CN102724133A (en) * | 2012-06-29 | 2012-10-10 | 杭州华三通信技术有限公司 | Method and device for transmitting internet protocol (IP) message |
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| CN100393065C (en) | 2008-06-04 |
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