RIP
RIP Notes · RIP is a distance vector protocol · RIP uses udp 520 · The metric used by RIP is hop count, 1 is directly connected network of the advertising router and 16 is unreachable · RIP timers are Updates interval: how often does the router send updates Invalid: after how seconds since last update does the router consider it invalid Holddown: how many seconds does the router hold down before anything from the router that advertised that route Flush: how many seconds before deleting it from the routing table Sleep: how many msec before delay before sending flash update · Split horizon (prevent sending the updates on the same interface that received on) is enabled on multIPoint subinteraces and disabled on multIPoint physical interfaces by default · RIP supports md5 and text authentication, the key has to match if the key is different the router with higher number key will accept the updates from the lower