Method for, realizing self adaption extension domain management entity mechanism Flexible IP network technology system

Abstract

A method for realizing an adaptive extended domain management entity mechanism in a flexible IP network technical system, the method is: when a network access point of a mobile node switches to another link, the address of the extended domain management entity is obtained through proxy discovery, Determine whether it and the extended domain management entity belong to the same network segment. If yes, construct the registration request data packet according to the traditional mobile IP principle, and send the extended domain management entity to forward the registration request; if not, obtain the relevant information, construct the original socket, and Send a registration request to the extended domain management entity; through registration, the mobile node informs the basic domain management entity of its care-of address; establishes a bidirectional tunnel between the extended domain management entity and the basic domain management; the extended domain management entity generates a proxy ARP of the mobile node Table entry to enable proxy ARP mechanism for successfully registered mobile nodes. The invention solves the technical problem that the foreign agent entity of the traditional mobile IP performs the full-agent function, which reduces the communication efficiency and occupies the system resources of the foreign agent entity.

Description

technical field [0001] The invention relates to a method for performing data communication after a mobile node roams to an extended network domain in a flexible IP network technology system. That is, it relates to a method in which the mobile node communicates with the extended domain management entity and the extended domain management entity acts as a proxy for the mobile node when the mobile node roams to a network different from its own network address. It specifically relates to a method for realizing an adaptive extended domain management entity mechanism in a flexible IP network technology system. Background technique [0002] With the development of computer networks and the improvement of the size, weight and performance of portable tools such as notebook computers and PDAs, the realization of mobile office has gradually become easier. Mobile IP technology is a technology derived from a series of standards developed by IETF to expand the mobility of IP networks. It...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a method for implementing the self-adaptive extended domain management entity mechanism in the flexible IP network technology system, which solves the problem that the traditional mobile IP foreign agent entity in the background technology performs the function of full agent, resulting in two original normal The communication efficiency of the communicating foreign host is reduced or even interrupted, and the technical problem of occupying the system resources of the foreign agent entity

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