关键词: 多协议标记交换(MPLS), 微移动性, 分级移动MPLS, 微蜂窝移动MPLS, LSP扩展

Abstract: The integration of MPLS and traditional mobile IP has many limitations. In order to improve its performance, many researches on integrating MPLS into micro-mobility were carried out. Based on these researches, especially HMPLS and MMPLS, this paper analysed their problems and then proposed a solution. Through LSP extension within a domain, this scheme overcomes some defects of current schemes of micro-mobility integrated with MPLS,supports fast and smooth handover and has lower signalling overhead.

Key words: MPLS(Multiprotocol Label Switching), micro-mobility, HMPLS(Hierarchical Mobile MPLS), MMPLS(Micro-Cell Mobile MPLS), LSP extension