3-8RIP Network Adjustment and OptimizationIn some special network environments, some RIP features need to be configured and RIP networkperformance needs to be adjusted and optimized. By performing the configuration mentioned in thissection, the following can be implemented:z Changing the convergence speed of RIP network by adjusting RIP timers;z Avoiding routing loops by configuring split horizon;z Packet validation in network environments with high security requirements, andz Configuring RIP to unicast RIP messages on interfaces with special requirements.Configuration PrerequisitesBefore adjusting RIP, perform the following tasks:z Configuring the network layer addresses of interfaces so that adjacent nodes are reachable toeach other at the network layerz Configuring basic RIP functionsConfiguration TasksConfiguring RIP timersFollow these steps to configure RIP timers:To do... Use the command... RemarksEnter system view system-view —Enter RIP view rip —Set the RIP timers timers { update update-timer| timeout timeout-timer } *RequiredBy default, the Update timer is 30 seconds andthe Timeout timer 180 seconds.When configuring the values of RIP timers, you should take network performance into considerationand perform consistent configuration on all routers running RIP to avoid unnecessary network trafficand network route oscillation.Configuring split horizonFollow these steps to configure split horizon:To do... Use the command... RemarksEnter system view system-view —Enter interface view interface interface-type interface-number —Enable split horizon rip split-horizon RequiredEnabled by default
