CN103036758A - Method of interconnection and interworking between identifying net and traditional network, access service router (ASR) and interworking service router (ISR) - Google Patents
Method of interconnection and interworking between identifying net and traditional network, access service router (ASR) and interworking service router (ISR) Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/2854—Wide area networks, e.g. public data networks
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Abstract
Provided is a method of interconnection and interworking between an identifying net and a traditional network, an ASR (access service router) and an ISR (interworking service router). The method includes that firstly the access service router in the identifying net receives a message sent from a user equipment, secondly the message is forwarded in line with a first routing table if the destination user identify label of the message dose not within the scope of the user identify label of the identifying net, thirdly the interworking service router in the identifying net receives the message sent from the access service router of the identifying net, and sends the message to the traditional network in line with a second routing table. It is ensured that the message sent from the identifying net to the traditional network in the identifying net can be routed to the right ISR. With the adoption of the method of interconnection and interworking between the identifying net and the traditional network, the ASR and the ISR, the issue of interconnection and interworking between the identifying net and a plurality of traditional networks can be effectively addressed, and the message sent from the identifying net to the traditional network in the identifying net is guaranteed to be routed to the right ISR.
Description
Technical field
The present invention relates to communication technical field, relate in particular to method, ASR and ISR that a kind of marked net and legacy network interconnect.
Background technology
The existing widely used TCP/IP in internet (Transmission Control Protocol/Internet Protocol, transmission control protocol/internet protocol) the IP address in the agreement has dual-use function, can be as the station location marker of network interface in network topology of the communication terminal main frame of network layer, again can be as the identify label of the network interface of transport layer main frame.But ICP/IP protocol is not considered the situation of host mobility at the beginning of design.Therefore, when host mobility was more and more general, the semanteme overload defective of this IP address was day by day obvious.When the IP address of main frame changed, not only route can change, and the identify label of communication terminal main frame also can change, and this will cause routing overhead more and more heavier, and the variation of host identification also will cause using and the interruption that is connected.
The proposition of identify label and position separation problem, for problems such as the semanteme overload that solves the IP address and routing overhead are serious, the dual-use function of IP address is separated, realize the support that the problems such as exchanging visit between the heterogeneous networks zone in routing overhead and the Next Generation Internet are dynamically heavily distributed, alleviated in mobility, many locals property, IP address.
In the prior art, the implementation method of router Network Based is one of solution that identify label is separated with the position.
Application number is that 200910174691.6 Chinese patent application discloses a kind of based on network identify label and position separation method, below network that the method is applied to referred to as marked net, the basic thought of this scheme is: marked net is divided into Access Layer and core layer, mobile node in the network has two kinds of sign types: User Identity (Access Identifier, referred to as AID) and route station location marker (Routing-Location Identifier is referred to as RID); For each user in the network configures unique AID, it is constant that this AID remains in moving process; In data forwarding process, AID can only use at Access Layer, and RID can only use in core layer; When between user terminal, carrying out application layer communication, use AID identification opposite end.
The marked net topology schematic diagram of above-mentioned based on network identify label and position split-frame as shown in Figure 1, mainly comprise: access service router (Access Service Router, referred to as ASR), identity location register (Identifier Locator Register, referred to as ILR), interworking service router (Interworking Service Router is referred to as ISR) etc.Mobile node, stationary nodes and nomadic node are linked in the marked net by Access Network.The below introduces respectively the related network elements in the marked net:
ASR is responsible for various mobile nodes access service is provided, and is the user assignment RID of access, and transmits in backbone network after user's data message identified encapsulation.
ASR is when receiving the data message that terminal is sent, according to the AID-RID mapping table in destination address in the data message (being the AID of Correspondent Node) the inquiry local cache (CACHE): if find corresponding AID-RID map entry, then the RID of the communication terminal found is encapsulated in header and sends to backbone network and carry out forward process; If do not find corresponding AID-RID map entry, then data message forwarding is arrived backbone network, and initiate the flow process of the AID-RID map information of query communication opposite end to ILR, the corresponding AID-RID map entry that ILR is returned is kept at this locality, inquiry when transmitting in order to subsequent packet.
Perhaps, when ASR does not find corresponding AID-RID map entry in this locality, also can select data message forwarding not to be arrived backbone network, but directly initiate the flow process of the AID-RID map information of this Correspondent Node of inquiry to ILR, after ILR returns corresponding AID-RID map entry, the RID of this communication terminal of finding is encapsulated in header sends to backbone network and carry out forward process.
ASR carries out decapsulation to this data message and processes when receiving the data message that mails to terminal, peel off the heading that comprises RID newly-increased in this data message after, mail to terminal.
ILR mainly is responsible for the mapping relations of User Identity and station location marker in the maintaining network, and provides inquiry service to ASR and other mapping server.
In the prior art, the terminal of the terminal access legacy network of marked net need to be exchanged visits by ISR.
ISR is responsible for the routing iinformation to legacy network distribution indicator net AID as the Interworking gateway router of marked net and legacy network; When the message of legacy network terminal access marked net entered marked net by ISR, then ISR carried out outer RID encapsulation according to destination address (AID) inquiry AID-RID mapping relations.
The message of terminal access legacy network exports by ISR in the marked net, idiographic flow is: ASR is after receiving the message that terminal is sent, the destination address of judging this message is the address in the marked net AID scope whether, address in the marked net AID scope, then carry out mailing to ISR after the skin encapsulation with the RID of ISR, ISR mails to legacy network remove the outer RID encapsulation of message after receiving after.
But when the actual sets wet end was affixed one's name to, marked net usually can be simultaneously and a plurality of legacy network intercommunications, as shown in Figure 2, that is to say, can there be a plurality of ISR (such as ISR1 and ISR2) in a marked net.Therefore, ASR when to judge destination address be not address in the marked net AID scope, can't judge and send to which ISR to this message after receiving the message that terminal (UE) is sent.
Summary of the invention
The present invention is directed to the problems referred to above, the method, ASR and the ISR that provide a kind of marked net and legacy network to interconnect, when interconnecting to solve marked net and a plurality of legacy network ASR can't determine will legacy network be issued message send to the problem of which ISR.
For addressing the above problem, the invention provides the method that a kind of marked net and legacy network interconnect, be applied to the access service router side of marked net, comprising:
After receiving the message that subscriber equipment sends, if the destination address of described message does not belong in the User Identity scope of this marked net, then according to routing table described message is transmitted.
Further,
Described routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router.
Further,
Described routing table is pre-configured to be on the described access service router.
The method that the present invention also provides a kind of marked net and legacy network to interconnect is applied to the interworking service router side of marked net, comprising:
Behind the message that the access service router is sent in receiving this marked net, according to routing table with described message repeating to legacy network.
Further,
Described routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router.
Further,
Described routing table is pre-configured to be on the described interworking service router.
The method that the present invention also provides a kind of marked net and legacy network to interconnect comprises:
Access service router side in the marked net if the destination address of described message does not belong in the User Identity scope of this marked net, is then transmitted described message according to the first routing table after receiving the message that subscriber equipment sends;
Behind the described message that interworking service router in described marked net access service router in receiving this marked net is sent, according to the secondary route table with described message repeating to legacy network.
Further,
Described the first routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router, or is pre-configured to be on the described access service router.
Further,
Described secondary route table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router, or is pre-configured to be on the described interworking service router.
Correspondingly, the invention provides a kind of marked net, comprising: access service router and the interworking service router more than 2:
Described access service router is used for after receiving the message that subscriber equipment sends, if judge in the User Identity scope that the destination address of described message do not belong to this marked net, then according to the first routing table described message is transmitted;
Described interworking service router is used for after receiving the described message that described access service router sends, according to the secondary route table with described message repeating to legacy network.
Further,
Described the first routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router, or is pre-configured to be on the described access service router.
Further,
Described secondary route table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router, or is pre-configured to be on the described interworking service router.
Correspondingly, the invention provides a kind of access service router, comprising:
The message receiver module is used for receiving the message that subscriber equipment is sent;
Judge module is used for judging whether the destination address of the described message that described message receiver module receives belongs in the User Identity scope of this marked net;
Packet forwarding module is used for according to routing table described message being transmitted when the destination address that described judge module is judged described message does not belong in the User Identity scope of this marked net.
Further, described access service router also can comprise:
The route acquisition module is used for utilizing the routing iinformation that gets access to according to Routing Protocol to generate described routing table.
Further, described access service router also can comprise:
Memory module is used for preserving pre-configured described routing table.
Correspondingly, the present invention also provides a kind of interworking service router, comprising:
Receiver module is used for receiving the message of sending by the access service router of marked net;
Forwarding module, the described message repeating that is used for will receiving according to routing table is to legacy network.
Further, described interworking service router also can comprise:
The route acquisition module is used for utilizing the routing iinformation that gets access to according to Routing Protocol to generate described routing table.
Further, described interworking service router also can comprise:
Memory module is used for preserving pre-configured described routing table.
After adopting the present invention, can effectively solve the problem that interconnects of marked net and a plurality of legacy networks, guarantee that the message that marked net mails to legacy network can be routed to correct ISR in marked net.
Description of drawings
Fig. 1 is the based on network identify label of prior art and the network topology schematic diagram of position separation;
Fig. 2 is based on network identify label and the network of position split-frame and the schematic diagram of a plurality of legacy network intercommunications of prior art;
Fig. 3 is ISR and ILR interaction flow schematic diagram in the embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
The network architecture and agreement that the present embodiment mainly separates with the position based on identify label propose the method that a kind of marked net and legacy network interconnect.Need to prove, in this article, destination address is the AID of feeling the pulse with the finger-tip, and correspondingly, purpose AID is the address of feeling the pulse with the finger-tip.
The concrete handling process of ASR side comprises as shown in Figure 3:
(301) ASR receives the message that UE sends;
(302) the purpose AID that carries according to this message of ASR judges whether this purpose AID belongs to the address in the marked net AID scope; Belong to the interior address of marked net AID scope, execution in step 303a if judge this purpose AID; Otherwise, execution in step 304;
(303a) ASR searches RID corresponding to this purpose AID according to AID and the RID map entry of local cache; If do not find RID corresponding to this purpose AID in this locality, then obtain corresponding AID and RID map entry to the ILR inquiry; If local RID corresponding to this purpose AID, then the execution in step 303b of preserving;
(303b) ASR carries out the skin encapsulation according to RID corresponding to purpose AID to message;
(303c) ASR transmits packaged message after searching routing table, finishes;
(304) illustrate that this message is the message that mails to legacy network, so ASR directly looks into routing table and carry out message repeating, do not need to do outer encapsulation.Wherein, this routing table can be to be generated by the routing iinformation that ASR gets access to according to Routing Protocol, also can by webmaster by manual configuration to ASR;
Correspondingly, ISR after receiving the message that ASR sends, according to routing table with this message repeating to legacy network.
In sum, can find out from above-described embodiment, the function of ASR and ISR is compared with prior art different:
For ASR, in the prior art, for uplink message, ASR can judge according to purpose AID, if purpose AID belongs to legacy network, after then encapsulating with the RID of ISR, sends to ISR; In the above-described embodiments, for uplink message, ASR judges the address of its purpose AID in the marked net AID scope, then do not carry out the skin encapsulation, directly carry out message repeating according to routing table, message can be forwarded to correct ISR according to routing mode, is forwarded to legacy network by ISR.
For ISR, in the prior art, for the message that mails to legacy network, owing to there being outer RID encapsulation, so after ISR need to remove the RID encapsulation of packet outer layer, re-send to legacy network; In the above-described embodiments, because ASR does not carry out outer RID encapsulation for the message that mails to legacy network, therefore, ISR also just no longer needs to remove outer encapsulation, gets final product but directly forward the packet to legacy network by routing mode.
Further, ISR can obtain the legacy network routing iinformation, and the legacy network routing iinformation is issued in marked net, can be routed to correct ISR to guarantee the message that marked net mails to legacy network in marked net.Wherein, the legacy network routing iinformation can be got access to according to Routing Protocol by ISR, also can by webmaster by manual configuration to ISR.
In the present embodiment, a kind of marked net comprises: access service router and the interworking service router more than 2:
Described access service router is used for after receiving the message that subscriber equipment sends, if judge in the User Identity scope that the destination address of described message do not belong to this marked net, then according to the first routing table described message is transmitted;
Described interworking service router is used for after receiving the described message that described access service router sends, according to the secondary route table with described message repeating to legacy network.
Preferably,
Described the first routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router, or is pre-configured to be on the described access service router.
Preferably,
Described secondary route table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router, or is pre-configured to be on the described interworking service router.
Correspondingly, the present embodiment also provides a kind of access service router, comprising:
The message receiver module is used for receiving the message that subscriber equipment is sent;
Judge module is used for judging whether the purpose User Identity of the described message that described message receiver module receives belongs in the User Identity scope of this marked net;
Packet forwarding module is used for according to routing table described message being transmitted when the purpose User Identity that described judge module is judged described message does not belong in the User Identity scope of this marked net.
Preferably, described access service router also can comprise:
The route acquisition module is used for utilizing the routing iinformation that gets access to according to Routing Protocol to generate described routing table.
Preferably, described access service router also can comprise:
Memory module is used for preserving pre-configured described routing table.
Correspondingly, the present embodiment also provides a kind of interworking service router, comprising:
Receiver module is used for receiving the message of sending by the access service router of marked net;
Forwarding module, the described message repeating that is used for will receiving according to routing table is to legacy network.
Preferably, described interworking service router also can comprise:
The route acquisition module is used for utilizing the routing iinformation that gets access to according to Routing Protocol to generate described routing table.
Preferably, described interworking service router also can comprise:
Memory module is used for preserving pre-configured described routing table.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, described program can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
The above is the preferred embodiments of the present invention only, is not for limiting protection scope of the present invention.According to summary of the invention of the present invention; also other various embodiments can be arranged; in the situation that do not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art are when making according to the present invention various corresponding changes and distortion; within the spirit and principles in the present invention all; any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (18)
1. the method that interconnects of a marked net and legacy network is applied to the access service router side of marked net, comprising:
After receiving the message that subscriber equipment sends, if the destination address of described message does not belong in the User Identity scope of this marked net, then according to routing table described message is transmitted.
2. the method for claim 1 is characterized in that:
Described routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router.
3. the method for claim 1 is characterized in that:
Described routing table is pre-configured to be on the described access service router.
4. the method that interconnects of a marked net and legacy network is applied to the interworking service router side of marked net, comprising:
Behind the message that the access service router is sent in receiving this marked net, according to routing table with described message repeating to legacy network.
5. method as claimed in claim 4 is characterized in that:
Described routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router.
6. method as claimed in claim 4 is characterized in that:
Described routing table is pre-configured to be on the described interworking service router.
7. the method that interconnects of a marked net and legacy network comprises:
Access service router side in the marked net if the destination address of described message does not belong in the User Identity scope of this marked net, is then transmitted described message according to the first routing table after receiving the message that subscriber equipment sends;
Behind the described message that interworking service router in described marked net access service router in receiving this marked net is sent, according to the secondary route table with described message repeating to legacy network.
8. method as claimed in claim 7 is characterized in that:
Described the first routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router, or is pre-configured to be on the described access service router.
9. such as claim 7 or 8 described methods, it is characterized in that:
Described secondary route table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router, or is pre-configured to be on the described interworking service router.
10. marked net comprises: access service router and the interworking service router more than 2:
Described access service router is used for after receiving the message that subscriber equipment sends, if judge in the User Identity scope that the destination address of described message do not belong to this marked net, then according to the first routing table described message is transmitted;
Described interworking service router is used for after receiving the described message that described access service router sends, according to the secondary route table with described message repeating to legacy network.
11. system as claimed in claim 10 is characterized in that:
Described the first routing table is to be generated according to the routing iinformation that Routing Protocol gets access to by described access service router, or is pre-configured to be on the described access service router.
12. such as claim 10 or 11 described systems, it is characterized in that:
Described secondary route table is to be generated according to the routing iinformation that Routing Protocol gets access to by described interworking service router, or is pre-configured to be on the described interworking service router.
13. an access service router comprises:
The message receiver module is used for receiving the message that subscriber equipment is sent;
Judge module is used for judging whether the destination address of the described message that described message receiver module receives belongs in the User Identity scope of this marked net;
Packet forwarding module is used for according to routing table described message being transmitted when the destination address that described judge module is judged described message does not belong in the User Identity scope of this marked net.
14. access service router as claimed in claim 13 is characterized in that, also comprises:
The route acquisition module is used for utilizing the routing iinformation that gets access to according to Routing Protocol to generate described routing table.
15. access service router as claimed in claim 13 is characterized in that, also comprises:
Memory module is used for preserving pre-configured described routing table.
16. an interworking service router comprises:
Receiver module is used for receiving the message of sending by the access service router of marked net;
Forwarding module, the described message repeating that is used for will receiving according to routing table is to legacy network.
17. interworking service router as claimed in claim 16 is characterized in that, also comprises:
The route acquisition module is used for utilizing the routing iinformation that gets access to according to Routing Protocol to generate described routing table.
18. interworking service router as claimed in claim 16 is characterized in that, also comprises:
Memory module is used for preserving pre-configured described routing table.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110304431.3A CN103036758B (en) | 2011-10-10 | 2011-10-10 | Method of interconnection and interworking between identifying net and traditional network, access service router (ASR) and interworking service router (ISR) |
| PCT/CN2012/082103 WO2013053293A1 (en) | 2011-10-10 | 2012-09-27 | Identification network and conventional network interconnection and intercommunication method, asr and isr |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110304431.3A CN103036758B (en) | 2011-10-10 | 2011-10-10 | Method of interconnection and interworking between identifying net and traditional network, access service router (ASR) and interworking service router (ISR) |
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| CN104184663A (en) * | 2014-07-17 | 2014-12-03 | 北京交通大学 | Communication method and device based on software-defined network and integrated identification network |
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| WO2013053293A1 (en) | 2013-04-18 |
| CN103036758B (en) | 2017-02-15 |
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