Method for hierarchical mobile IPv6 to avoid inter-domain handover

A technology of internal switching and mobile nodes, applied in the direction of electrical components, wireless communication, network data management, etc., to achieve the effect of reducing excessive MAP area, reducing transmission time, and avoiding inter-domain switching
CN101516082AInactive Publication Date: 2009-08-26NAT UNIV OF DEFENSE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT UNIV OF DEFENSE TECH
Publication Date
2009-08-26
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for a hierarchical mobile IPv6 to avoid inter-domain handover, and aims to provide a method for dynamically handing over MAP to avoid inter-domain handover. The technical proposal is characterized by firstly constructing an MAP hierarchical list, then selecting an MAP which is the lowest hierarchy in the MAP hierarchical list according to MAP information received by an AR for log-in; searching by an MN with the obtained MAP hierarchical list, and finding out an MAP which has the same root node on branches on which AR-PAR used before MN handover and AR-NAR used after expected MN handover are arranged, and is nearest to an access router; determining handover from an PAR to an NAR is intra-domain handover or inter-domain handover, performing MAP binding update and HA binding update in advance to avoid the inter-domain handover if the handover is the inter-domain handover; finally handing over to the NAR when the detected signal strength of the NAR is stronger than that of the PAR while the MN is moving. The method can be used for avoiding the inter-domain handover, and reducing signaling interaction time between the MN and the MAP.
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Description

technical field

[0001] The invention relates to a method for reducing switching delay in a hierarchical mobile IPv6 (HMIPv6, Hierarchical Mobile IPv6) network, in particular to a method for reducing inter-domain switching delay by avoiding the occurrence of inter-domain switching. Background technique

[0002] In order to support mobility in the next generation Internet, IETF (Internet Engineering Task Force, Internet Engineering Task Force) began to formulate the Mobile IPv6 (MIPv6, Mobile IPv6) protocol at the end of the last century, and formed RFC3775 (Mobility Support in IPv6 ) documentation. However, there are still many defects in the mobile IPv6 protocol itself, such as mobile nodes (MN, Mobile Node, nodes that can roam in different networks and can be accessed through the home address) must report to the home agent (HA, Home Agent) and correspondent node (CN, Correspondent Node) registration, as the number of nodes increases, it will lead to increased signaling red...

Claims

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