CN103051541B - Message forwarding method, ASR and ISR in a kind of mark net - Google Patents
Message forwarding method, ASR and ISR in a kind of mark net Download PDFInfo
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- CN103051541B CN103051541B CN201110312745.8A CN201110312745A CN103051541B CN 103051541 B CN103051541 B CN 103051541B CN 201110312745 A CN201110312745 A CN 201110312745A CN 103051541 B CN103051541 B CN 103051541B
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Abstract
Message forwarding method, ASR and ISR in a kind of mark net, methods described are applied on interworking service router (ISR), including：When the message that public network server is sent is received, if being searched according to the purpose User Identity carried in the message and identifying (RID) less than corresponding route location, the message is replicated into n parts then, and the RID of pre-configured coupled each access service router (ASR) is encapsulated in after each packet outer layer as destination address, the message after encapsulation is sent to into corresponding ASR respectively；Wherein, n is the number of the ASR being connected with the ISR.Compared with prior art, after the present invention, before corresponding mapping item is generated or after list item is aging, ISR or ASR still can be sent to the ASR in this mark net the message that Correspondent Node is replied, the receiving device of the message is sent to by corresponding ASR, it is ensured that the accuracy rate of message transmissions.
Description
Technical field
The present invention relates to network technology is identified, more particularly to the message forwarding method in a kind of mark net, ASR (Access
Service Router, access service router) and ISR (Interworking Service Router, interworking service route
Device).
Background technology
Widely used ICP/IP protocol (the Transmission Control Protocol/Internet in existing internet
Protocol, transmission control protocol/internet protocol) in IP address there is dual-use function, both as the communication end of Internet
Station location marker of the end main frame network interface in network topology, and as the identity of transport layer host network interface.TCP/
IP agreement does not consider the situation of host mobility at the beginning of designing.But, when host mobility is more and more universal, this IP address
Semantic overload defect is increasingly apparent.When the IP address of main frame changes, not only route will change, communication terminal main frame
Identity also change, can so cause routing overhead increasingly to weigh, and the change of host identification can cause application
With the interruption of connection.
The purpose that identity and position separation problem are proposed is for the semantic overload and routing overhead that solve IP address
The problems such as serious, the dual-use function of IP address is separated, realize reassigning mobility, many local property, IP address dynamic,
The support of the problems such as mitigating in routing overhead and Next Generation Internet the exchanging visit between heterogeneous networks region.
Mark net is one of detached solution of relevant identity and position.In mark network technology system, with AID
(Access Identifier, User Identity) represents the identity information of mobile terminal, with RID (Routing-Location
Identifier, route location mark) positional information of mobile terminal is represented, AID is constant to user by fixed allocation, and RID takes
The ASR being certainly located in user.
In existing embodiment, ASR notifies the corresponding relation of the AID and RID of mobile terminal (MN) to the movement end
The ISR of Internet (internet) interface that all Correspondent Nodes (Correspondent Node, referred to as CN) at end are located
Or the ASR of Correspondent Node.If due to some abnormal causes (such as aging etc.) cause not have on ISR the AID of certain mobile terminal with
The corresponding relation of RID, then be sent to the message of the mobile terminal due to the mapping relations that cannot find the AID and RID on ISR
And cannot temporarily be forwarded, ISR to be treated is inquired about to ILR (Identifier Locator Register, identity position register)
The corresponding relation of the AID and RID, normally could forward after forming the map entry of the AID and RID on ISR.So
Way can cause following consequence：
1) public network or the second mobile terminal in this mark net are accessed after the first mobile terminal-opening, if at this moment
ISR or corresponding 2nd ASR of the second mobile terminal process that the corresponding ASR notices of the first mobile terminal come this first
The corresponding relation of the AID and RID of mobile terminal is not in time, then form this article of AID on ISR or the 2nd ASR corresponding with RID
Before relation, the first mobile terminal accessing public network or the second mobile terminal cannot be responded；
If 2) due to mobile terminal for a long time no data through ISR or this mark net in other ASR, ISR or other
ASR will be the AID of the mobile terminal and RID map entrys aging, then ISR or other ASR relearn the AID with
Before the corresponding relation of RID, other mobile terminals in mobile terminal accessing public network or this mark net cannot be responded.
The content of the invention
Present invention is primarily targeted at the message forwarding method in a kind of mark net, ASR and ISR are provided, to avoid looking into
The corresponding relation that can not find corresponding AID and RID and the problem that causes data message to be dropped.
To solve the above problems, the invention provides the message forwarding method in a kind of mark net, is applied to interworking service
On router (ISR), including：
When the message that public network server is sent is received, if being looked into according to the purpose User Identity carried in the message
Corresponding route location mark (RID) is can not find, then the message is replicated into n parts, and coupled respectively connect pre-configured
The RID for entering business router (ASR) is encapsulated in after each packet outer layer respectively as destination address, is sent out the message after encapsulation respectively
Give corresponding ASR；Wherein, n is the number of the ASR being connected with the ISR.
Further,
The RID using pre-configured coupled each ASR is encapsulated in each packet outer layer as destination address, tool
Body includes：
For each message obtained after duplication, a conduct is not repeatedly selected from the RID of all ASR for being safeguarded
Destination address is encapsulated in the packet outer layer.
Correspondingly, the invention provides a kind of message forwarding method identified in net, is applied to access service router
(ASR) on, including：
After the message that interworking service router is sent is received, forwarding is searched according to purpose AID carried in the message
Table, is forwarded to corresponding purpose mobile terminal.
Further, methods described also includes：
If searching in the forward table less than forward-path, the message is abandoned.
Present invention also offers the message forwarding method in a kind of mark net, is applied on access service router, including：
When the message that terminal in the range of this device service is sent is received, if according to the purpose user carried in the message
Identity is searched and identifies (RID) less than corresponding route location, then the message is replicated n parts, and by other pre-configured
The RID of coupled each access service router (ASR) is encapsulated in after each packet outer layer respectively as destination address, respectively will
Message after encapsulation is sent to corresponding ASR；Wherein, n is the number of the ASR being connected with the ISR.
Further,
The RID using other pre-configured coupled each ASR is encapsulated in outside each message as destination address
Layer, specifically includes：
For each message obtained after duplication, a conduct is not repeatedly selected from the RID of all ASR for being safeguarded
Destination address is encapsulated in the packet outer layer.
Further, methods described also includes：
After the message that other access service routers are sent in this mark net is received, searched according to purpose AID and turned
Deliver, be forwarded to corresponding purpose mobile terminal.
Further, methods described also includes：
If searching in the forward table less than forward-path, the message is abandoned.
Correspondingly, the invention provides a kind of interworking service router (ISR), including：
Memory module, preserves the route location of the pre-configured each access service router (ASR) being connected with the ISR
Mark (RID)；
Receiver module, for receiving the message that public network server is sent；
Enquiry module, the purpose User Identity for carrying in the message that received according to the receiver module are searched
Corresponding RID；
Package module, for when the enquiry module does not find corresponding RID, the receiver module being received
Message replicates n parts, and each RID preserved in institute's memory module is encapsulated in each packet outer layer as destination address；Wherein,
N is the number of the ASR being connected with the ISR；
Sending module, for the message after encapsulation is sent to corresponding ASR.
Further,
The package module is not for for each message obtained after duplication, weighing from the RID of all ASR for being safeguarded
One is selected to be encapsulated in the packet outer layer as destination address again.
Correspondingly, the invention provides a kind of access service router (ASR), including：
Receiver module, for receiving the message that interworking service router is sent；
Forwarding module, purpose AID for carrying in the message that received according to the receiver module search forwarding
Table, is forwarded to corresponding purpose mobile terminal.
Further,
When the forwarding module is for searching less than forward-path in the forward table, the message is abandoned.
Correspondingly, the invention provides a kind of access service router (ASR), including：
Memory module, preserves pre-configured other each access service routers being connected with this access service router
Route location identifies (RID)；
Receiver module, for receiving the message that the terminal in the range of this device service is sent；
Enquiry module, the purpose User Identity for carrying in the message that received according to the receiver module are searched
Corresponding RID；
Package module, for when the enquiry module does not find corresponding RID, the receiver module being received
Message replicates n parts, and each RID preserved in institute's memory module is encapsulated in each packet outer layer as destination address；Wherein,
N is the number of the ASR being connected with the ISR；
Sending module, for the message after encapsulation is sent to corresponding ASR.
Further,
The package module is not for for each message obtained after duplication, weighing from the RID of all ASR for being safeguarded
One is selected to be encapsulated in the packet outer layer as destination address again.
Further, the ASR also includes forwarding module；
Receiver module is additionally operable to receive the message that other access service routers are sent；
The forwarding module for received according to the receiver module this mark net in other access service routers
Purpose AID carried in the message sent searches forward table, is forwarded to corresponding purpose mobile terminal.
Further, the ASR also includes forwarding module；
When the forwarding module is additionally operable to search less than forward-path in the forward table, this mark for receiving is abandoned
The message that other access service routers are sent in net.
Compared with prior art, after using the present invention, before corresponding mapping item is generated or after list item is aging,
ISR or ASR still can be sent to the ASR in this mark net the message that Correspondent Node is replied, and be sent to by corresponding ASR
The receiving device of the message, it is ensured that the accuracy rate of message transmissions.
Description of the drawings
Fig. 1 is the message forwarding method flow chart in the embodiment of the present invention in mark net；
Fig. 2 is the structural representation of ISR in the embodiment of the present invention；
Fig. 3 is the present invention to be beamed back the message of the mobile terminal broadcast data flow direction in mark net using public network in example one and shows
It is intended to；
Fig. 4 be the present invention using in example two during other mobile terminals of mobile terminal accessing in mark net broadcast data stream
To schematic diagram.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing to the present invention
Embodiment be described in detail.It should be noted that in the case where not conflicting, in the embodiment and embodiment in the application
Feature mutually can be combined.
The equipment that the present embodiment is related to includes：
Mobile terminal, its identity are AID；
ASR, is responsible for access-in management and the mobile management of mobile terminal, and RID is arranged on ASR；
ISR, is responsible for connection identifier net and internet, it may have RID.
In the present embodiment, the message forwarding method in a kind of mark net, as shown in figure 1, including：
Step A, safeguards the RID (RID1, RID2 ... RIDn) of all ASR in coupled this mark net, shape on ISR
Into the broadcast table of an ASR；
Step B, ISR is when the message that public network server is sent is received, if being searched according to purpose AID carried in the message
Less than corresponding RID, then the message is replicated into n parts, for each message obtained after duplication, from all ASR's for being safeguarded
One is not repeatedly selected to be encapsulated in after the packet outer layer as destination address in RID, the message after this is encapsulated is sent to phase
The ASR for answering；
Step C, ASR after decapsulating to the message, search forward table according to purpose AID after above-mentioned message is received,
It is forwarded to corresponding purpose mobile terminal；If searching in forward table less than corresponding forward-path, the message is abandoned.
Correspondingly, in the present embodiment, a kind of ISR, as shown in Fig. 2 including：
Memory module, preserves the RID of the pre-configured each ASR being connected with the ISR；
Receiver module, for receiving the message that public network server is sent；
Enquiry module, the purpose User Identity for carrying in the message that received according to the receiver module are searched
Corresponding RID；
Package module, for when the enquiry module does not find corresponding RID, the receiver module being received
Message replicates n parts, and each RID preserved in institute's memory module is encapsulated in each packet outer layer as destination address；Wherein,
N is the number of the ASR being connected with the ISR；
Sending module, for the message after encapsulation is sent to corresponding ASR.
It is preferred that
The package module is not for for each message obtained after duplication, weighing from the RID of all ASR for being safeguarded
One is selected to be encapsulated in the packet outer layer as destination address again.
Correspondingly, a kind of ASR is present embodiments provided, including：
Receiver module, for receiving the message that interworking service router is sent；
Forwarding module, purpose AID for carrying in the message that received according to the receiver module search forwarding
Table, is forwarded to corresponding purpose mobile terminal.
It is preferred that
When the forwarding module is for searching less than forward-path in the forward table, the message is abandoned.
In the present embodiment, the message forwarding method in a kind of mark net, is applied on ASR, including：
Step A, safeguards RID (RID1, the RID2 ... of all other ASR in coupled this mark net on ASR
RIDn), form the broadcast table of an ASR；
Step B, ASR receive this mark net in other ASR send message when, if according to the purpose carried in the message
AID is searched less than corresponding RID, then the message is replicated n parts, for each message obtained after duplication, from the institute for being safeguarded
One is not repeatedly selected to be encapsulated in after the packet outer layer as destination address in having the RID of ASR, the message after this is encapsulated is sent out
Give corresponding ASR；
Step C, other ASR after above-mentioned message is received, after decapsulating to the message, are searched according to purpose AID and are turned
Deliver, be forwarded to corresponding purpose mobile terminal；If searching in forward table less than corresponding forward-path, the report is abandoned
Text.
Correspondingly, a kind of ASR is present embodiments provided, including：
Memory module, preserves pre-configured other each access service routers being connected with this access service router
RID；
Receiver module, for receiving the message that the terminal in the range of this device service is sent；
Enquiry module, the purpose User Identity for carrying in the message that received according to the receiver module are searched
Corresponding RID；
Package module, for when the enquiry module does not find corresponding RID, the receiver module being received
Message replicates n parts, and each RID preserved in institute's memory module is encapsulated in each packet outer layer as destination address；Wherein,
N is the number of the ASR being connected with the ISR；
Sending module, for the message after encapsulation is sent to corresponding ASR.
It is preferred that
The package module is not for for each message obtained after duplication, weighing from the RID of all ASR for being safeguarded
One is selected to be encapsulated in the packet outer layer as destination address again.
It is preferred that the ASR also includes forwarding module；
Receiver module is additionally operable to receive the message that other access service routers are sent；
The forwarding module for received according to the receiver module this mark net in other access service routers
Purpose AID carried in the message sent searches forward table, is forwarded to corresponding purpose mobile terminal.
It is preferred that the ASR also includes forwarding module；
When the forwarding module is additionally operable to search less than forward-path in the forward table, this mark for receiving is abandoned
The message that other access service routers are sent in net.
The present invention is further described using example with two below.
Using example one
As shown in figure 3, comprising the following steps：
Step A, safeguards on ISR that the RID (RID1, RID2 ... ..., RIDn) of coupled all ASR forms an ASR
Broadcast table；
Step B, mobile terminal accessing public network (identity of the mobile terminal is AID1, and station location marker is RID1), i.e.,
Message is sent to public network by identifying network element in net；
Step C, after ISR receives the response message of public network server reply, with purpose IP carried in the response message (i.e.
The AID1 of mobile terminal) mapping relations of AID and RID are searched, and the response is encapsulated as outer layer purpose IP with the RID for finding
Message, is then sent to the corresponding ASR of RID for finding the response message；If searching less than corresponding RID, basis
The response message for receiving is replicated n parts by the local ASR broadcast tables for preserving, and using ASR broadcast each RID in table as
Destination address is encapsulated in each response message outer layer, and the response message after encapsulating is sent to corresponding ASR respectively then；
Step D, the ASR for receiving response message search forward table according to purpose AID carried in the message, by response message
It is forwarded to correct purpose mobile terminal；If searched less than forward-path, the response message is abandoned.
Using example two
As described in Figure 4, comprise the following steps：
Step A, safeguards the RID (RID1, RID2 ... ..., RIDn) of all ASR coupled in this mark net on ASR
Form an ASR and broadcast table；
Step B, mobile terminal 1 (identity of MN1 is AID1, and station location marker is RID1) access 2 (MN2 of mobile terminal
Identity be AID2, station location marker is RID2)；Message is sent to mobile terminal 2 by ASR1；
Step C, after ASR1 receives the message that mobile terminal 1 is sent, is looked into purpose IP (i.e. AID2) carried in the message
The mapping relations of AID and RID are looked for, and encapsulates the message as outer layer purpose IP with the RID for finding, then the message is sent
To the corresponding ASR of RID that this finds；If searching less than corresponding RID, according to the local ASR broadcast tables for preserving, will receive
The response message for arriving replicates n parts, and each RID in ASR broadcast tables is encapsulated in outside each response message as destination address
Layer, is then sent to corresponding ASR the response message after encapsulating respectively；
Step D, after ASR2 receives the message, searches forward table according to purpose AID carried in the message, forwards the packet
To correct purpose mobile terminal 2；And due to not preserving corresponding forward-path on other ASR, so can abandon receiving
The message.
One of ordinary skill in the art will appreciate that all or part of step in said method can be instructed by program
Related hardware is completed, and described program can be stored in computer-readable recording medium, such as read-only storage, disk or CD
Deng.Alternatively, all or part of step of above-described embodiment can also be realized using one or more integrated circuits.Accordingly
Ground, each module/unit in above-described embodiment can be realized in the form of hardware, it would however also be possible to employ the shape of software function module
Formula is realized.The present invention is not restricted to the combination of the hardware and software of any particular form.
The preferred embodiments of the present invention are the foregoing is only, protection scope of the present invention is not intended to limit.According to
The content of the invention of the present invention, can also have other various embodiments, in the case of without departing substantially from spirit of the invention and its essence, be familiar with
Those skilled in the art is when making various corresponding changes and deformation according to the present invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.
Claims (16)
1. the message forwarding method in a kind of mark net, is applied on interworking service router ISR, including：
When the message that public network server is sent is received, if being searched not according to the purpose User Identity carried in the message
RID is identified to corresponding route location, then the message is replicated into n parts, and by pre-configured coupled each access service
The RID of router ASR is encapsulated in after each packet outer layer respectively as destination address, is sent to accordingly the message after encapsulation respectively
ASR；Wherein, n is the number of the ASR being connected with the ISR.
2. the method for claim 1, it is characterised in that：
The RID using pre-configured coupled each ASR is encapsulated in each packet outer layer as destination address, concrete to wrap
Include：
For each message obtained after duplication, one is not repeatedly selected from the RID of all ASR for being safeguarded as purpose
Address is encapsulated in the packet outer layer.
3. the message forwarding method in a kind of mark net, is applied on access service router ASR, including：
After the message that interworking service router is sent is received, according to the purpose User Identity AID carried in the message
Forward table is searched, corresponding purpose mobile terminal is forwarded to；
Wherein, the message that interworking service router is sent is receiving the message that public network server is sent for interworking service router
When, if the purpose User Identity carried in message is searched identifies RID less than corresponding route location, access service is route
The RID of device ASR is encapsulated in the message after packet outer layer as destination address.
4. method as claimed in claim 3, it is characterised in that also include：
If searching in the forward table less than forward-path, the message is abandoned.
5. the message forwarding method in a kind of mark net, is applied on access service router, including：
When the message that terminal in the range of this device service is sent is received, if according to the purpose user identity carried in the message
Mark AID search less than corresponding route location identify RID, then by the message replicate n parts, and by other pre-configured and its
The RID of connected each access service router ASR is encapsulated in after each packet outer layer respectively as destination address, after encapsulating respectively
Message be sent to corresponding ASR；Wherein, n is the number of the ASR being connected with interworking service router ISR.
6. method as claimed in claim 5, it is characterised in that：
The RID using other pre-configured coupled each ASR is encapsulated in each packet outer layer as destination address, tool
Body includes：
For each message obtained after duplication, one is not repeatedly selected from the RID of all ASR for being safeguarded as purpose
Address is encapsulated in the packet outer layer.
7. method as claimed in claim 5, it is characterised in that also include：
After the message that other access service routers are sent in this mark net is received, forward table is searched according to purpose AID,
It is forwarded to corresponding purpose mobile terminal.
8. method as claimed in claim 7, it is characterised in that also include：
If searching in the forward table less than forward-path, the message is abandoned.
9. a kind of interworking service router ISR, including：
Memory module, preserves the route location mark of the pre-configured each access service router ASR being connected with the ISR
RID；
Receiver module, for receiving the message that public network server is sent；
Enquiry module, the purpose User Identity for carrying in the message that received according to the receiver module search correspondence
RID；
Package module, for when the enquiry module does not find corresponding RID, the message that the receiver module is received
N parts are replicated, and each RID preserved in institute's memory module is encapsulated in into each packet outer layer as destination address；Wherein, n is
The number of the ASR being connected with the ISR；
Sending module, for the message after encapsulation is sent to corresponding ASR.
10. ISR as claimed in claim 9, it is characterised in that：
The package module for for each message obtained after duplication, from the RID of all ASR for being safeguarded not repeatedly
Select one the packet outer layer is encapsulated in as destination address.
A kind of 11. access service router ASR, including：
Receiver module, for receiving the message that interworking service router is sent；
Forwarding module, for the purpose User Identity AID carried in the message that received according to the receiver module
Forward table is searched, corresponding purpose mobile terminal is forwarded to；
Wherein, the message that interworking service router is sent is receiving the message that public network server is sent for interworking service router
When, if the purpose User Identity carried in message is searched identifies RID less than corresponding route location, access service is route
The RID of device ASR is encapsulated in the message after packet outer layer as destination address.
12. ASR as claimed in claim 11, it is characterised in that：
When the forwarding module is for searching less than forward-path in the forward table, the message is abandoned.
A kind of 13. access service router ASR, including：
Memory module, preserves the route of pre-configured other each access service routers being connected with this access service router
Station location marker RID；
Receiver module, for receiving the message that the terminal in the range of this device service is sent；
Enquiry module, the purpose User Identity AID for carrying in the message that received according to the receiver module are searched
Corresponding RID；
Package module, for when the enquiry module does not find corresponding RID, the message that the receiver module is received
N parts are replicated, and each RID preserved in institute's memory module is encapsulated in into each packet outer layer as destination address；Wherein, n is
The number of the ASR being connected with interworking service router ISR；
Sending module, for the message after encapsulation is sent to corresponding ASR.
14. ASR as claimed in claim 13, it is characterised in that：
The package module for for each message obtained after duplication, from the RID of all ASR for being safeguarded not repeatedly
Select one the packet outer layer is encapsulated in as destination address.
15. ASR as claimed in claim 13, it is characterised in that also including forwarding module；
Receiver module is additionally operable to receive the message that other access service routers are sent；
The forwarding module for received according to the receiver module this mark net in other access service routers send
Message in purpose AID that carries search forward table, be forwarded to corresponding purpose mobile terminal.
16. ASR as claimed in claim 15, it is characterised in that also include：
When the forwarding module is additionally operable to search less than forward-path in the forward table, abandon in this mark net for receiving
The message that other access service routers are sent.
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| CN201110312745.8A CN103051541B (en) | 2011-10-14 | 2011-10-14 | Message forwarding method, ASR and ISR in a kind of mark net |
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| CN107480286B (en) * | 2017-08-24 | 2020-08-11 | 浪潮通用软件有限公司 | Message processing method and trusted system |
| CN108768849B (en) * | 2018-06-20 | 2020-09-08 | 新华三技术有限公司 | Message processing method and device |
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| CN102025516A (en) * | 2009-09-16 | 2011-04-20 | 中兴通讯股份有限公司 | Method and system for realizing multicast service |
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