OSPF协议扩展属性NSSA的研究与应用

Research and Application of Expanding Attribute NSSA to OSPF Protocol

分析了动态路由协议OSPF的优点和局限性,针对OSPF中Stub区域无法导入区域外部非OSPF路由的缺陷引入了NSSA,介绍了NSSA通过LSA-Type 7引入区域外部非OSPF路由来弥补这个缺陷的过程。同时通过一个实例介绍了NSSA在Cisco路由器上的实际应用,说明了NSSA的重要性。

This paper analyses the advantages and limitations of the OSPF which is the dynamic routing protocol, also introduces the NSSA because the Stub zone can not channel into external without OSPF routing, NSSA can remedy this disadvantages. Meanwhile, through a sample, it introduces the actual application of NSSA on the Cisco router and presents the importance of NSSA.