MPLS技术在移动计算中的应用

移动IP协议允许移动用户在互联网上进行移动接入。多协议标签交换(MPLS)融合了ATM快速交换中的高效性和简单性。文章将MPLS技术引入移动IP中,充分利用了MPLS技术的优点,使得移动IP不再需要利用隧道来传递分组。相反,整个的转发过程都是在MPLS层上处理,MPLS交换远远快于传统的IP分组转发业务,大大减少了传输和分组处理时延并且扩展了移动IP的可用性。

Application of MPLS Technique in Mobile Computing Environment

Mobile IP is a protocol that allows mobile users to maintain continuous IP network connectivity.Multiprotocol Label Switching(MPLS)combines the efficiency and simplicity of IP routing together with the high-speed switching of ATM.This paper introduces the MPLS protocols into the Mobile IP protocols.By taking full use of the features of the MPLS protocols,people remove the need for IP-in-IP tunneling.Instead,the whole data forwarding process is executed in the MPLS layer,and the lable switching is much faster than tradtion IP forwarding.So the transmission delay and packet processing overhead are reduced and the scalability of the Mobile IP protocols is improve d.