Method for learning corresponding relationship of AID (access identifier) and RID (routing-location identifier), ASR (access service router) and ISR (interworking service router)

Abstract

The invention discloses a method for learning a corresponding relationship of an AID (access identifier) and an RID (routing-location identifier), an ASR (access service router) and an ISR (interworking service router). The method is applied in the ISR and comprises the following steps after a message sent by the ASR is received, searching whether corresponding relationship of the AID and the RID carried in the message is locally stored; and if no, updating the corresponding relation of the AID and the RID carried in the message to the local. The method is applied in the ASR and comprises the following steps that after the message sent by the other ASR in the identification network is received, searching whether the corresponding relationship of the AID and the RID carried in the message is locally stored; and if no, updating the corresponding relationship of the AID and the RID carried in the message to the local. After the invention is adopted, the storage resource of the ISR or the ASR can be saved; the flow abandoning is avoided; the system resource is saved; and the processing speed of the message is accelerated.

Description

technical field [0001] The present invention relates to identification network technology, in particular to a method for learning the corresponding relationship between AID (Access Identifier, user identity identifier) ​​and RID (Routing-Location Identifier, routing location identifier), ASR (Access Service Router, access service router) And ISR (Interworking Service Router, Interworking Service Router). Background technique [0002] The IP address in the TCP / IP protocol (Transmission Control Protocol / Internet Protocol, Transmission Control Protocol / Internet Protocol), which is widely used in the Internet, has dual functions. , which is also used as the identity of the network interface of the transport layer host. At the beginning of the TCP / IP protocol design, the movement of the host was not considered. However, when the host mobile becomes more and more common, the semantic overload defect of this IP address becomes more and more obvious. When the IP address of the ho...

AI Technical Summary

Problems solved by technology

[0006] 1) Regardless of which ISR or ASR the data of the mobile terminal passes through, the ASR of the message sender must synchronize the correspondence between the AID and RID of the mobile terminal and the change message to all ISRs and other ASRs in the identification network, which will cause Waste of ISR and ASR resources and unnecessary performance loss;

[0007] 2) When the sender's ASR does not synchronize the correspondence between AID and RID to the ISR or other ASRs in the identification network fast enough, or the ISR or other ASRs do not process the synchronization data of the sender's ASR in a timely manner, resulting in ISR or other ASRs When the corresponding relationship between AID and RID is not formed, the ISR or other ASR will initiate a request to the ILR to query the AID and RID, but before the ISR or other ASR receives the corresponding relationship between the AID and the RID replied by the ILR, it needs to send the request to the communication peer. The data packet cannot be forwarded normally because the RID information of the mobile terminal cannot be obtained on the ISR or other ASR

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