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Intra-domain switching method for proxy mobile IPv6 (Internet protocol version 6) based on AAA server

A technology of proxy mobile and server, applied in the field of communication, can solve the problem of overburdened LMA cache, achieve the effect of eliminating the burden, eliminating the loss of data packets, and promoting the application

Inactive Publication Date: 2012-07-04
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the LMA needs to set up caches for all MNs in the PMIPv6 domain that are switching, when many MNs are switching at the same time, the load of the LMA cache will be overwhelmed

Method used

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  • Intra-domain switching method for proxy mobile IPv6 (Internet protocol version 6) based on AAA server
  • Intra-domain switching method for proxy mobile IPv6 (Internet protocol version 6) based on AAA server
  • Intra-domain switching method for proxy mobile IPv6 (Internet protocol version 6) based on AAA server

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Embodiment Construction

[0044] The purpose of the present invention is to provide an AAA-based proxy mobile IPv6 intra-domain switching method. The method can effectively reduce the loss of data packets during the handover process, and at the same time reduce the buffering load of the LMA, which is conducive to promoting the application of PMIPv6 in services sensitive to transmission quality. The basic idea is: by extending the options of the configuration file of the MN in the AAA server, when the MN switches from the P-MAG to the N-MAG, the N-MAG can obtain the address of the P-MAG from the configuration file, and the N-MAG and A tunnel is established between the P-MAGs, so that the packets buffered on the P-MAGs are received and forwarded to the MN. In order to reduce the cache burden of LMA, this method also improves the handover process of RFC5213. P-MAG detects that MN will leave and sends DeReg PBU message to LMA to inform MN to leave. After receiving the DeReg PBU message, the LMA knows that...

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Abstract

The invention relates to an intra-domain switching method for proxy mobile IPv6 (Internet protocol version 6) based on an AAA server. Particularly, the invention aims to solve the problem that how to effectively reduce the loss of data massages and the cache burden of a local mobility anchor at the same time in the proxy mobile IPv6 domain when a moving node is switched to a next mobile access gateway (N-MAG) from a previous mobile access gateway (P-MAG). The aim of the invention is realized through the following steps that: a configuration file of the moving node is expanded in the AAA server, a foreign agent care-of address required field is added, and the address of the P-MAG is stored; when the moving node leaves from the P-MAG but has not been accessed to the N-MAG, the local mobility anchor still sends the data massage sent to the moving node to the P-MAG, namely the P-MAG replaces the local mobility anchor to cache the data massage sent to the moving node in the switching process; and the N-MAG acquires the address of the P-MAG from the configuration file of the moving node of the expanded AAA server, thus receiving the data massage cached on the P-MAG and sending the data massage to the moving node.

Description

technical field [0001] The invention relates to the communication field, in particular to an intra-domain switching method of proxy mobile IPv6 based on an AAA server. Background technique [0002] In today's world, in the rapidly developing IT industry, the most eye-catching ones are mobile communications and the Internet. The crystallization of the integration of mobile communication technology and Internet technology---Mobile IP (Mobile IP, MIP) technology accommodates the business in the global communication field. A notable feature of MIP is that the movement of the mobile node (MN) is transparent to the applications carried on the network layer. Simply put, it means that the MN moves between different networks, and the applications at the transport layer and above the transport layer do not need to be changed. The source address and destination address of the communication, so as to maintain the continuity of communication. The application of MIP technology has broad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W36/12
Inventor 马争鸣王可胡海峰张飞王波涛王琳张荀梁艳盈梁雨淇
Owner SUN YAT SEN UNIV
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