How to analyze RIP routing problem?
Step one: collect detailed network routing information. Dynamic routing protocol operates between routers, if appears failure, first must locate where the failure is. Step two: check whether the link between the router is interlinked. Dynamic routing protocol operates above the ip layer, each router’s interacting routing protocol message should first ensure the interlinked of the link routing layer. Step three: locate the failure router, and use show command to examine the information, e.g. interface list of RIP, neighbor table, routing table. Step four: probably analyze where the failure is through the collecting information, and then can analyze the packet interaction through debug, find out the reason.
