IS-IS路由协议的研究与仿真

Research and Simulation of IS-IS Routing Protocol

IS-IS是一种链路状态路由协议,相比OSPF更高效而稳定的特性被从OSI引入到TCP/IP协议栈,其既支持CLNP也支持IP路由.在对IS-IS协议NSAP地址、区域类型、报文类型及工作原理等深入研究的基础上,设计了一种多区域多网络类型的IS-IS实验网络模型,并通过Dynamips仿真平台实现.结合抓包及对IS-IS LSDB等等表分析,仿真结果验证了IS-IS协议机制和原理,为在实际网络中的部署提供了参考,并且该实例可直接迁移到实际网络中.

IS-IS is a link state routing protocol,which is introduced into the TCP/IP protocol stack because of its high efficient and stable features from the OSI protocol stack.IS-IS supports both the CLNP and the IP routing.On the basis of the in-depth study of IS-IS protocol by NSAP address,area type,message analysis and working principle,an IS-IS experimental network model of multi-region and multi-network is designed,and it is successfully realized through the Dynamips simulation platform.The simulation results verify the mechanism and principle of IS-IS protocol with the analysis of packet capture and neighbor table,topology table,and LSDB,which can provide reference for deployment in the actual network,and the instance can be migrated to the actual network seamlessly.