在基于MPLS的层次化移动IP网络中支持DiffServ的研究  

Research on DiffServ supporting for MPLS-based hierarchical mobile IP networks

作　　者：陈伟[1] 邓银波[1] 陈前斌[1] 李云[1] 隆克平[1] 

机构地区：[1]重庆邮电学院光互联网及无线信息网络研究中心,重庆400065

出　　处：《通信学报》2004年第12期102-112,共11页Journal on Communications

基　　金：国家高技术研究与发展计划(863计划)基金资助项目(2003AA121540)国家教育部科学技术研究基金资助项目(204125)重庆教委科学技术研究基金资助项目(050310)重庆邮电学院博士科研启动基金资助项目

摘　　要：MPLS支持DiffServ、流量工程,能为网络提供较好的QoS保证,而移动IP(MIP)能为移动设备提供较好的移动性支持。文章探讨了在无线接入网中MPLS和MIP结合实现DiffServ的方案,并给出了一种在基于MPLS的层次化MIP网络结构中支持DiffServ的体系结构,设计了其节点功能模型和关键协议。方案中利用了层次化结构的区域注册和重路由机制,减少了切换时延和网络的信令负荷。MPLS supported the DiffServ and traffic engineering, and it could provide better QoS guarantee for network. Mobile IP (MIP) could provide better mobility support for mobile equipmented. This paper discussed the integration of MPLS with MIP for supporting DiffServ model in the wireless access networks. A framework of MPLS-based hierarchical mobile IP networks with DiffServ supporting was presented. The nodes' functions models and key protocols were designed and analyzed. By adopt the regional registration and re-routing scheme in hierarchical networks, both the handover delay and signaling load may be decreased.

关 键 词：多协议标记交换 移动IP DIFFSERV 

分 类 号：TN91[电子电信—通信与信息系统]