Research and Implementation of Graceful Restart Technology based on OSPF Protocol
Xianfeng Zhang · Electronic Instrumentation Customers · 2007
With the increasing enlargement of network scale,the rapid increment of network speed,and the emergence of new technology of network and communication,people need more abundant,more convenient and more rapid network application and service.Because of these characters of Internet,the conception calledInternet of new generationhas appeared.To help meet the goals of high availabilit y,the Internet Engineering Task Force has built extensions to routing protocols such as BGP,OSPF,LDP that minimize the outage associated with a failed routing protocol.With OSPF Graceful Restart enabled on an edge device and its peer,the data plane can continue to process and forwarding packets even if the control plane fails.By also reducing routing flap,Graceful Restart stabilizes the network and reduces the consumption of control plane resources. Graceful Restart offers high availability for the network,which goes beyond high availability only for an individual router.