Application Note: Routing with OSPF

RIP (Routing Information Protocol) is probably the most widely used IP routing protocol. having been included with Berkeley UNIX (Routed, the routing daemon) and from being standardized by the IETF (Internet Engineering Task Force). RFC (Request for Comments) 1058. vector protocol. 30-second intervals for RIP) sends its routing table (a vector of distances) to neighbor (adjacent) routers. router receives its neighbor's routing update, it compares the update with its own routing table and changes its routing table if necessary. Distance-vector protocols are susceptible to two main problems. they can be slow to converge. required for the routing tables in all of the connected routers to stabilize after an event such as a network link failure. likely to occur as network size and complexity increase. fundamental assumption for routing (in the design of RIP) was that the internet contained at most a few hundred networks. large corporate and government internets, which have thousands of networks. distance-vector protocols such as RIP and the lack of a standard routing protocol suitable for use in large internets are in large part responsible for the development of OSPF.