Abstract

Concerning the long recovery time to re-establish the optimized path after mobile node's handover,this paper proposed a fast handover based route optimization approach in proxy mobile IPv6.The new approach,which was initiated by previous mobile access gateway in advance in mobile node's fast handover procedure,achieved fast recovery of optimized path.Performance analysis shows that the new intra-domain route optimization method can reduce average route optimization cost by 21.7% and the setup time of route optimization state by 45.4%,compared with the local mobility anchor initiated route optimization protocol.In addition,the new inter-domain route optimization method can decrease the setup time of route optimization state by 72.2% in comparison with the existing inter-domain handover and route optimization approach.

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