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Method and device for realizing quick switch

A fast switching and purposeful technology, applied in the direction of selecting devices, data exchange through path configuration, electrical components, etc., to achieve the effect of improving efficiency

Inactive Publication Date: 2007-10-10
高爽军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0049] The purpose of the present invention is to overcome the PAR requirement in the prior art and the problem of a large number of temporary tunnels generated by a large number of MNs, and provide a method and device for realizing fast handover

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  • Method and device for realizing quick switch
  • Method and device for realizing quick switch

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Embodiment Construction

[0104] In order to solve the problem of the need for PAR in the prior art and the temporary large number of tunnels generated by a large number of mobile nodes, the present invention provides a method for realizing fast handover.

[0105] In the technical solution of the present invention, after the MN moves to the NAR, the following steps are executed before the binding update specified by RFC3775 is completed to reduce the number of tunnels.

[0106] First, a tunnel relationship is established between PAR and NAR. This tunnel is established for a long time and does not need to be established or deleted frequently. The tunnel can adopt various technologies, such as IP tunnel, IPSEC tunnel, MPLS tunnel, etc. As long as the MN moves from the same PAR to the same NAR, regardless of the number, the tunnel between the same PAR and NAR is used to forward traffic. The tunnel source on PAR is the PAR address, the destination address is the NAR address, the tunnel source on the NAR is the...

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Abstract

The invention is used for solving the currently-existed issue that is the PAR needs to generate great amount of temporary tunnels with mobile nodes. The method comprises: a tunnel relation is established between PAR and NAR; when a mobile node moves to NAR, before renewing the binging, the PCoA and NCoA of the mobile node and the mapping relation between PAR and NAR are saved in both PAR and NAR; said mobile node and its communication partner makes message package and message transmission according to the mapping relation; after renewing the binding, deleting the mapping relation. The invention also provides a fast switch apparatus comprising a tunnel establishing module, a mapping establishing module, a transmission module and a mapping deleting module.

Description

Technical field [0001] The present invention relates to the field of mobile communication, in particular to a method and device for realizing fast handover in mobile IPv6 (IP version 6-IP Version 6). Background technique [0002] With the development of network technology and the emergence of a large number of mobile terminals, such as notebook computers, PDAs, mobile phones, vehicle-mounted devices, etc., a mobile computing boom has been set off. More and more users can access various terminals. Connect to the Internet through a public mobile wireless network at any place. In order to meet the needs of mobile services, mobile IP (Mobile IP) technology is introduced at the network level. [0003] The basic principle of Mobile IP technology is to enable mobile nodes to always use the initial IP address for IP communication during the movement, so as to ensure that the upper-layer applications carried by the IP network layer maintain uninterrupted and continuity in movement. [000...

Claims

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Application Information

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IPC IPC(8): H04L12/46H04Q7/38H04L29/06H04W36/00
CPCH04W36/0011H04W36/0019
Inventor 陈洪飞
Owner 高爽军