CN101400098B - Physical network recognition information notifying method in fixed communication network and apparatus thereof - Google Patents
Physical network recognition information notifying method in fixed communication network and apparatus thereof Download PDFInfo
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- CN101400098B CN101400098B CN2007100465297A CN200710046529A CN101400098B CN 101400098 B CN101400098 B CN 101400098B CN 2007100465297 A CN2007100465297 A CN 2007100465297A CN 200710046529 A CN200710046529 A CN 200710046529A CN 101400098 B CN101400098 B CN 101400098B
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Abstract
The invention provides a physics network identification information announcement method in a fixed communication network system. The fixed communication network system comprises a route device, a plurality of network access devices, and user network connected with the network access devices. The method comprises: the step a) the network access devices receive and identify protocol information from a direction of the route device; b) the network access devices insert one physics network identification information into the protocol information and transmit toward the network at the lower part of the corresponding port, wherein the physics network identification information stands for unique addessable information of the network on the lower part of the port in the device range. The invention solves the problems of service switch when the mobile terminal roams to the fixed communication network, and physics network positioning of the user terminal in the fixed communication network, and micro-mobility management.
Description
Technical field
The present invention relates to communication technical field, relate in particular to physical network recognition information notifying method and communicator in a kind of fixed communication network.
Background technology
Develop rapidly along with the network communications technology, fixing mobile the fusion more and more paid close attention to, it can move interface by it out of doors the time such as a portable terminal, typically inserts its corresponding cordless communication network as WiMAX (micro-wave access global inter communication) interface or 3G (3G (Third Generation) Moblie) interface and enjoys service; We know, in the WiMAX access network, broadcast BSID (Base transceiver Station Identity Code) by the DL-MAP message of its downlink broadcast channel its base station (BS), the information of portable terminal detection and scanning neighbor base stations, and the network that the decision request is finished between different base station switches.Yet, when mobile terminal roaming arrives indoor, wireless network signal is faint even do not have, and the user wishes at this moment by other network interfaces, typically inserts its corresponding fixed network as WLAN (WLAN (wireless local area network)) interface, Ethernet (Ethernet) interface and enjoys service.Portable terminal will switch to fixed communication network from cordless communication network, related service will carry out unbroken switching, it at first needs to know specific physical network information in the fixed communication network after the switching, the fixed communication network resource is distributed, dispatched, afterwards related service is switched, also discharges at last the related resource in the cordless communication network by cordless communication network notice related service management key-course.Obviously, present fixed communication network does not possess the ability of proactive notification physical network information.
Even do not consider aforementioned terminals the mobility requirement, user terminal as a fixed communication network, it also needs to know own which specific physical network in fixed communication network sometimes, quick stationkeeping ability to be provided, to trigger the little mobile management services such as (micro-mobility management) under the same prefix subnet.
Although in current fixed communication network, we can handle by suitable technological means and definitely the aforementioned physical network position under the particular network environment be differentiated, for example in following particular network environment: when a user network exclusively enjoyed an address space, the terminal equipment at its place can identify unique physical network at this user terminal place at an easy rate by the network prefix from router broadcast message RA.But in the more real network environment: a plurality of user networks are shared a subnet space, and aforementioned manner just can not position user terminal exactly.In conjunction with as shown in Figure 1, a plurality of user network (U1, U2, U3) respectively by having the double layer network access device (12A of three layers of perception, 12B) be connected in same routing device 11 certain port, share a subnet space, each user terminal (computer as shown in the figure, TV set-top box, portable terminal) only obviously can not specifically identify the physical network position at its place and provide locating information exactly to operation layer by the network parameter information of obtaining in the router advertisement RA message such as network prefix (as the address of router), and when portable terminal when a user network U1 moves to another one user network U2 or U3, it can not be to network layer, operation layer provides the physical network position to switch and little mobile management to carry out business exactly.
Therefore, fixed communication network needs the network equipment of a kind of simple mechanism to its access, comprises that network access equipment with overall addressability, user terminal (portable terminal that comprises roaming) etc. provide the physical network information at its place.
Summary of the invention
The present invention aims to provide a kind of technical scheme, and under fixed network environment, network access equipment provides an addressable physical network recognition information notifying of the whole network by its downlink network port.
According to an aspect of the present invention, physical network recognition information notifying method in a kind of fixed communication network system is provided here, described fixed communication network system comprises: routing device, some network access equipments and the user network that links to each other with described network access equipment, and described method comprises: step a), network access equipment receive and identify the protocol message from the routing device direction; Step b), network access equipment insert described protocol message and the forwarded under the corresponding port with a physical network recognition information, and described physical network recognition information is represented the network unique addressable information in described routing device scope under this port.
According to another aspect of the present invention, provide the network access equipment in a kind of fixed communication network system here, comprising: receiving system receives and identifies the protocol message from the uplink network port; Processing unit inserts physical network recognition information and transmits to the downlink network of corresponding port in described protocol message, described physical network recognition information is represented the network unique addressable information in described fixed communication network system scope under this port.
According to another aspect of the present invention, provide a kind of communication network terminal equipment here, comprising: recognition device, receive and identify particular protocol message from the fixed network port, extract the physical network recognition information that wherein comprises; Processing unit sends to network traffic system to carry out positioning action with described physical network recognition information.
The technique effect that the present invention brought:
For the network access equipment that does not have the whole network addressability, by receiving from the network physical identifying information that is comprised in the routing device direction particular protocol message, may further be its undernet access device that connects effective physical network recognition information is provided.For subscriber network terminal, the present invention has overcome in the existing network communication ought roam into the professional switching problem that fixed communication network faces from mobile communications network by a portable terminal, and provides effective settling mode for little mobile management in the physical network location of user terminal in the fixed communication network, the same subnet triggers.
Description of drawings
By the detailed description with the accompanying drawing that proposes below, it is more obvious that feature of the present invention, character and advantage will become, and components identical has identical sign in the accompanying drawing, wherein:
Fig. 1 is a kind of typical fixed communication network connecting system structure;
Fig. 2 is a kind of fixed communication network system configuration in conjunction with meaning shown in the present;
Fig. 3 is according to the physical network recognition information notifying embodiment based on the DHCP mode of the present invention;
Fig. 4 is according to the physical network recognition information notifying embodiment based on the router advertisement mode of the present invention;
Fig. 5 is according to a kind of communication network terminal device structure embodiment provided by the present invention.
Embodiment
Below in conjunction with accompanying drawing, preferred implementation of the present invention is described in detail.
The present invention describes shown in Fig. 2 A, 2B, a plurality of user networks (U1, U2, U3) are connected in same routing device 21 certain port, share a subnet space by the double layer network access device (22A, 22B) with three layers of perception respectively, routing device 11, networking access device 22A, 22B carry out physical network recognition information notifying in the specific network protocol mode to the network that downlink port was connected, and we need guarantee the uniqueness of physics networking identifying information under routing device 11 ports announced.
Physical network recognition information:
Physical network recognition information under the meaning of the present invention is used for discerning away from the terminal equipment of the network access equipment of routing device or user network the concrete physical network at its place, and it is the addressable identifying information of the whole network under the routing device port.
Routing device can be with first an initial physical network recognition information, and for example the network access equipment that is attached thereto is given in its Port IP address by the certain protocol message announcement.Certainly, also can obtain above-mentioned routing device Port IP address as first physical network recognition information with the network access equipment that routing device directly is connected by alternate manner.
Network access equipment can constitute physical network unique addressable information in described routing device scope under this port together with described first physical network recognition information (for fear of ambiguity, we are referred to as first physical network recognition information with routing device direction physical network recognition information) second physical network recognition information relevant with network access equipment self port.
A kind of execution mode, we can define second physical network recognition information that links to each other with this network access equipment port away from router by " management ip address+port numbers of network access equipment ".
Another execution mode can be configured the sign of the all-network access device under route device port ID in advance by network management system, and we define second physical network recognition information that links to each other with this network access equipment port away from routing device with " network access equipment sign ID+ port numbers ".
Certainly, we need recognize in conjunction with Fig. 2 A, as routing device 21 and with user network U2, network access equipment 22A in the middle of fixed communication network between the network access equipment 22B that U3 directly links to each other may exist, if last network access equipment 22B does not have overall addressable network equipment sign ID, routing device 21 and user network U2, network access equipment 22A between the U3,22B can add himself port second physical network recognition information of living in by particular protocol message successively, so, know its present position with the user terminal among the user network U2 that network access equipment 22B is connected, that is: router port IP address+Sub-N1+U2 identifying information.Wherein, Sub-N1 represents second physical network recognition information of network access equipment 22A; U2 represents second physical network recognition information of network access equipment 22B.
Among Fig. 2 B when having overall addressable network equipment sign ID near last network access equipment 22B of user network U2, U3, coupled its higher level's network access equipment 22A port does not directly connect other user's physical network, this network access equipment 22A port can not be used in and add second physical network recognition information in the particular protocol message, so, know its present position with the user terminal among the user network U2 that network access equipment 22B is connected, i.e. " router port IP address+U2 identifying information.Wherein, second physical network recognition information of network access equipment 22A ".
The announcement mode of physical network recognition information:
The implementation of expansion DHCP (DHCP)/DHCPv6
In the general typical DHCP agreement, the DHCP/DHCPv6 protocol message is encapsulated in the UDP User Data Protocol message, user terminal and Dynamic Host Configuration Protocol server are alternately to obtain required network configuration information (such as IP address, dns server address etc.), network access equipment is realized the forwarding to the DHCP protocol message, and the present invention is by defining new Option (option) or Sub-option (sub-option) in order to carry defined physical network recognition information in the DHCP protocol message.Routing device, network access equipment are intercepted and captured the dhcp message from the router direction, as DHCP OFFER (DHCP provides) message or DHCPACK (dhcp response) message; Or intercept and capture DHCPv6 message under the DHCPv6 agreement from the router direction, as DHCP Advertise (dhcp broadcast) message, DHCP Reply (DHCP answer) message or DHCP Reconfigure (DHCP reconfigures) message; And further described protocol message is handled and transmitted: add Option or the sub-option of Sub-option that carries physical network recognition information in the above-mentioned DHCP/DHCPv6 protocol message by being chosen in, this message will be transmitted towards the physical network of which port, just fill out corresponding physical Network Recognition information in this Option or Sub-option;
Routing device can be with first an initial physical network recognition information, and for example its Port IP address is added among above-mentioned specific Option or the Sub-option and the downward primary network station access device of this DHCP protocol message is transmitted;
When network access equipment receives aforementioned specific DHCP/DHCPv6 message from the routing device direction, can be further second physical network recognition information relevant with himself of aforementioned definitions be added among the specific Option or Sub-option, sends from the downlink network port of correspondence.
Certainly the Port IP address of routing device also can by alternate manner obtain (such as router advertisement message) by the next stage network access equipment and be used as first physical network recognition information, with second physical network recognition information by network access equipment be added among the specific Option of DHCP protocol message;
Fig. 3 A has illustrated a kind of execution mode based on DHCP Option, and wherein, " code " represents this option type, and we can arrange a new value and represent the required content identification of the carrying physical network recognition information of this option; " length " represents the length of this option; " option content " is used to carry the defined physical network recognition information of the present invention.Legend has further been illustrated a kind of execution mode of " option content ", and it can have " sub-option number ", represents the Sub-Option number that this Option has, and specifically can be to carry out the network access equipment number of inserting physics networking identifying information; " sub-option " is used for defining the length of each sub-option content, for example 2 byte lengths; On behalf of network access equipment or routing device, " sub-option content " specifically carry out the occurrence that physical network recognition information inserts, as previously mentioned, when routing device sends a dhcp message, pairing sub-option content 1 is first physical network recognition information, for example this router port IP address.The network access equipment of subordinate can insert second physical network recognition information at the dhcp message that receives from the routing device direction in sub-option content 2, for example this network access equipment sign ID+ port numbers.So user terminal is promptly known the position, physics networking that it is concrete according to the wherein entrained physical network recognition information of reduction when receiving the DHCP protocol message with above-mentioned option.
In addition, we also can adopt at the existing DHCP option new Sub-Option that gives a definition and carry aforementioned physical network recognition information, specifically can just be not repeated here with reference to the related protocol standard.
The implementation of expansion router solicitation/router advertisement (RS/RA)
Usually, user terminal is found the router relevant information by router solicitation RS mechanism, and router advertisement RA message then is to inform the network information relevant with router self, for example network prefix, router port IP address.The present invention defines new Option or Sub-option to transmit aforementioned physical network recognition information by above-mentioned RA protocol message mode, and described RA protocol message can be responded according to the specific request from down direction network access equipment or terminal equipment; Or periodically announce to its non-router direction port by this routing device or network access equipment.
Consider that user terminal can't all directly connect and routing device, but being connected to routing device by the said user's physical network in our front, middle network access equipment etc., network access equipment also needs the ability that has corresponding router advertisement message identification, handle and transmit so.Specifically.We can define Option or Sub-option in the new router advertisement message, are used to carry physical network recognition information.
Routing device can be with first an initial physics physical network recognition information, and for example its Port IP address is added among the Option or Sub-option in the above-mentioned specific RA protocol message,
Network access equipment identification is added suitable second physical network recognition information from the corresponding router advertisement message of up routing device direction in defined Option or Sub-option, and is sent to the corresponding physical network by corresponding port.
Certainly the Port IP address of routing device also can by alternate manner obtain (such as router advertisement message) by the next stage network access equipment and be used as first physical network recognition information, with second physical network recognition information by network access equipment be added among the Option or Sub-option of specific RA message.
General typical IPv6 router advertisement message form is shown in Fig. 4 A, wherein, " type " field value of message is 134, show that this is an IPv6 router advertisement message, " code " is used to identify this router advertisement message type, and we can arrange a new value and represent the required content identification-physical network recognition information that carries of this option; " option content " generally is used for representing the concrete network parameter information that router advertisement is entrained, here be used for carrying the network physical identifying information of the present invention's definition, Fig. 4 has further illustrated a kind of execution mode of " option content ", it can have " sub-option number ", representing the sub-number of options that this option comprises, specifically can be the network access equipment number of carrying out the physics networking identifying information that inserts the present invention's definition; " sub-option " is used for arranging the length of each sub-option content-physics networking identifying information, for example 2 byte lengths; The physical network recognition information occurrence that " sub-option content " specifically represented each network access equipment or routing device and inserted, as previously mentioned, when routing device sends a RA message, the sub-option content 1 of its correspondence is first physical network recognition information, for example this router port IP address.The network access equipment of subordinate can insert second physical network recognition information in the RA message that receives from the routing device direction in sub-option content 2, for example this network access equipment sign ID+ port numbers.So user terminal is promptly known the position, physics networking that it is concrete according to the wherein entrained physical network recognition information of reduction when receiving the RA protocol message with above-mentioned option.
In addition, we also can adopt at the existing RA notice message option new Sub-Option that gives a definition and carry aforementioned physical network recognition information, specifically can just be not repeated here with reference to the related protocol standard.
The link layer implementation
Define new link layer protocol or expand some protocols having, for example define new two layers of BPDU (bridge protocol data unit) frame, this frame is routed the broadcasting of device port, and network access equipment is discerned these frames, and inserts suitable physical network recognition information and comprise described BPDU frame to its non-routing device direction port periodic advertisement; Certainly, routing device or network access equipment can be responded, sent to this port the BPDU frame of the physical network recognition information that is connected in this port according to the specific request from down direction network access equipment or terminal equipment.
The three kinds of physical network recognition information notifying execution modes in front have disclosed routing device, how network access equipment is discerned and to be handled certain protocol message, the defined physical network recognition information of the present invention is announced next stage network access equipment, the user terminal that connects to being attached thereto by described protocol message, they can carry out operations such as network positions, network switching, little mobile management according to wherein entrained physical network recognition information when receiving described protocol message.
Fig. 5 has further disclosed relevant user terminals structure embodiment, it comprises a recognition device 51, a processing unit 52, in conjunction with communications network system illustrated in Figure 2: it receives and identifies the protocol message that comprises physical network recognition information from the routing device direction recognition device 51, and this protocol message can be DHCP protocol message, router advertisement RA message, also can be specific link layer protocol message; Processing unit 52 extracts entrained physical network recognition information in the protocol message, and described physical network recognition information is sent to network traffic system to carry out positioning action.
According to another execution mode of the present invention, processing unit 52 sends to corresponding business management system to carry out network handover operation by mobile network's ports such as its WiMax, 3G to mobile network system with described physical network recognition information.
Although above-mentioned being illustrated as the invention provides some embodiment; be not to be used for limiting protection scope of the present invention; the professional in present technique field can carry out various modifications to embodiment under the prerequisite that does not depart from the scope of the present invention with spirit, this modification all belongs in the scope of the present invention.
Claims (12)
1. physical network recognition information notifying method in the fixed communication network system, described fixed communication network system comprises: routing device, some network access equipments and the user network that links to each other with described network access equipment, described method comprises:
Step a), network access equipment receive and identify the protocol message from the routing device direction;
Step b), network access equipment insert described protocol message and the forwarded under the corresponding port with a physical network recognition information, and described physical network recognition information is represented the network unique addressable information in described routing device scope under this port.
2. the method for claim 1 is characterized in that further comprising:
The network terminal in step c), the user network receives and identifies the entrained physical network recognition information of described protocol message, to carry out terminal positioning or network handover operation.
3. the method for claim 1 is characterized in that the described protocol message of step a) is dynamic host configuration protocol DHCP message, router advertisement RA message or link layer protocol message.
4. method as claimed in claim 3 is characterized in that the described protocol message of step b) carries described physical network recognition information by particular options or sub-option.
5. as the described method of arbitrary claim in the claim 1 to 4, it is characterized in that the described physical network recognition information of step b) is network access equipment management level IP address and port numbers;
6. as the described method of arbitrary claim in the claim 1 to 4, it is characterized in that the described physical network recognition information of step b) is the unique device identification ID and the port numbers of network access equipment correspondence under this routing device port.
7. the network access equipment in the fixed communication network system is characterized in that comprising:
Receiving system: receive and identify protocol message from the uplink network port;
Processing unit: insert physical network recognition information and transmit to the downlink network of corresponding port in described protocol message, described physical network recognition information is represented the network unique addressable information in described fixed communication network system scope under this port.
8. network access equipment as claimed in claim 7 is characterized in that the protocol message of described receiving system identification is link layer protocol message, dynamic host configuration protocol DHCP message or router advertisement RA message.
9. network access equipment as claimed in claim 7 is characterized in that described physical network recognition information is its equipment control layer IP address and port numbers.
10. network access equipment as claimed in claim 7 is characterized in that described physical network recognition information is the unique device identification ID and the port numbers of network access equipment correspondence under this routing device port.
11. a communication network terminal equipment is characterized in that comprising:
Recognition device: receive and identify particular protocol message, extract the physical network recognition information that wherein comprises from the fixed network port;
Processing unit: described physical network recognition information is sent to network traffic system to carry out positioning action.
12. communication network terminal equipment as claimed in claim 11 is characterized in that described processing unit sends to business management system to carry out professional handover operation with described physical network recognition information by mobile network system.
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| CN102611712A (en) * | 2012-04-10 | 2012-07-25 | 中山爱科数字家庭产业孵化基地有限公司 | Digital home network access and authentication method |
| CN110417658B (en) | 2018-04-28 | 2022-08-12 | 北京京东尚科信息技术有限公司 | Network access method and device for edge router |
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| CN1905691A (en) * | 2005-07-29 | 2007-01-31 | 西门子（中国）有限公司 | Method for implementing intelligent HLR function in fixed network |
| CN1953404A (en) * | 2005-06-14 | 2007-04-25 | 泛达公司 | Method and apparatus for monitoring physical network topology information |
| CN1956592A (en) * | 2006-09-08 | 2007-05-02 | 华为技术有限公司 | Method and system for acquiring topological information of radio network |
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| CN1953404A (en) * | 2005-06-14 | 2007-04-25 | 泛达公司 | Method and apparatus for monitoring physical network topology information |
| CN1905691A (en) * | 2005-07-29 | 2007-01-31 | 西门子（中国）有限公司 | Method for implementing intelligent HLR function in fixed network |
| CN1956592A (en) * | 2006-09-08 | 2007-05-02 | 华为技术有限公司 | Method and system for acquiring topological information of radio network |
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Address after: 201206 Pudong Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Patentee after: Shanghai NOKIA Baer Limited by Share Ltd Address before: 201206 Pudong Jinqiao Export Processing Zone, Nanjing Road, No. 388, Shanghai Patentee before: Shanghai Alcatel-Lucent Co., Ltd. |