Method for collecting information of access route and its system

Abstract

This invention discloses a method for collecting AR information by setting AR-ICR in an access network including the following steps: A, AR transmits one or more than one update messages of AR information to AR-ICR, B, AR-ICR sends said AR information to adjacent AR at a same position. This invention also discloses a system for collecting AR information including AR-ICR and at least two AR, which can collect AR information automatically without triggering mobile nodes or artificial configuration.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method and system for collecting access router (AR) information. Background technique [0002] In recent years, with the rapid development of data communication and wireless communication technologies and the emergence of a large number of mobile terminals, more and more users hope to access the Internet (Internet) efficiently and flexibly regardless of location. Therefore, the Internet not only needs to provide existing data services and multimedia audio and video services, but also needs to implement mobile Internet functions to provide wireless Internet access services for users' mobile devices. Mobile Internet Protocol (IP) is a hotspot technology that supports the interconnection between mobile devices and the Internet to meet this demand. It can enable user hosts to maintain communication with the Internet without being interrupted while moving. [0003] As ...

AI Technical Summary

Problems solved by technology

This manual configuration solution has the following disadvantages: when adding / deleting an AR, it is necessary to change the configuration of all ARs adjacent to the AR, and the workload is heavy, resulting in poor scalability of the solution; when the network IP address needs to be re-deployed In this case, the configurations on all ARs need to be changed manually, and the workload is huge, resulting in poor maintainability; moreover, this solution cannot adapt to the dynamic adjustment of the network topology. For example, when an AR crashes, the adjacent ARs cannot Change setting

[0017] This solution has the following disadvantages: since the construction of AR information must be triggered by the mobile node, it cannot be completed in advance. When the mobile node sends a RtSolPr message to apply for AR information, because PAR needs to send a message to query the information of NAR, it will cause handover The delay increases; it is very vulnerable to the attack of the mobile node, for example, the mobile node sends a large number of RtSolPr messages carrying invalid prefix information, which makes the security of the network poor; this solution needs to make changes to the second layer protocol to carry the AR prefix On the one hand, it takes up valuable wireless bandwidth; on the other hand, it needs to upgrade a large number of existing Layer 2 devices, which brings great difficulties to network deployment.

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