Method and system for identity position mapping relationship maintenance

Abstract

The invention discloses a method and a system for identity position mapping relationship maintenance. After an access switch router (ASR) receives a message that a source identification of position (IP) address is an access identification (AID) of a mobile terminal, identity position mapping relationship of the mobile terminal is synchronized to a target router corresponding to a target IP address of the message by the ASR or to all integrated services router (ISR) which are communicated with the ASR. According to the method and the system for the identity position mapping relationship maintenance, a mapping table item of AID and RID is passed between the ASR and the ISR, mutual communication between an identification network and an external Internet can be simply and efficiently achieved, by using the method for the identity position mapping relationship maintenance, after a return message, accessed by a user terminal when the user terminal is on line, of the external Internet, arrives at the ISR, due to the fact that the mapping table item exists on a control face of the ISR, the ISR can look up the mapping table item directly, and the mapping table item determines how to forward the user message.

Description

technical field [0001] The invention relates to identity identification network technology in the communication field, in particular to a method and system for maintaining identity-position mapping relationship. Background technique [0002] The existing Internet has been widely used. The widely used TCP / IP protocol as the basis of its application has certain defects in its design: it does not fully consider mobility, and the IP protocol does not support mobility. The essential reason is that the IP address contains dual attributes of identity and location. The identity attribute of the IP address means that in the TCP / IP protocol stack, the IP address is used to identify the communication peer. The location attribute of the IP address indicates which network segment the IP address represents the user is in, and is the basis of routing. In general, in a fixed IP network, there is no problem with the combination of the location of the IP address and the identity attribute, ...

AI Technical Summary

Problems solved by technology

[0002] The existing Internet has been widely used. As the basis of its application, the widely used TCP / IP protocol has certain defects in its design: mobility is not fully considered, and the IP protocol does not support mobility. The essential reason is that the IP address contains Dual attributes of identity and location

However, when applied to the mobile Internet, the movement of the terminal location will cause the IP address to change, otherwise the routing cannot be performed. Obviously, the change of the IP address will lead to the change of the terminal identity, so that the terminal is used for the TCP / UDP application connection established based on the original IP address. It must be disconnected and re-established, which is unacceptable for many applications, and the user experience is poor. Therefore, there are fundamental problems in the support of traditional IP protocols for mobility.

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