Hierarchical mobility IPv6 rapid switching method and system

Abstract

The method includes steps: based on switching anticipation provided by link layer, mobile node sends proxy route request message to previous access router of the mobile node; the previous access router sends information of network prefix of the new access router to the mobile node; based on the information of network prefix, the mobile node generates new forwarding address; after moving to target network, the invention carries out repetitive detection of optimistic address for the new forwarding address. The invention makes IPv6 switching flow simple, reduces signaling interaction in switching procedure so as to shorten switching time delay.

Description

technical field

[0001] The invention relates to the technical field of network communication, in particular to a hierarchical mobile IPv6 fast switching method and system. Background technique

[0002] In order to meet the increasingly common mobile requirements of network devices, the IETF (Internet Engineering Task Force, Internet Engineering Task Force) proposed the MIPv6 (Mobile IPv6, Mobile IPv6) protocol. Later, improved protocols such as Hierarchical Mobile IPv6 (HMIPv6, Hierarchical MobileIPv6) protocol and Fast Mobile IPv6 (FMIPv6, Fast Mobile IPv6) protocol were proposed to improve the switching and communication performance of Mobile IPv6.

[0003] The Internet routing mode selects a route according to the destination address of the network layer, and sends the data packet to the network where the destination address is located, and then reaches the node represented by the destination address. In order to maintain smooth communication during the handover process ...

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