296 CHAPTER 33: RIP C ONFIGURATIONConfiguring RIP to redistribute routes from another protocoln The allow-ibgp keyword is used to redistribute iBGP routes. Because the AS-PATHattribute of redistributed iBGP routes is discarded, routing loops may occur.Therefore, use this keyword with caution.RIP NetworkAdjustment andOptimizationIn some special network environments, some RIP features need to be configuredand RIP network performance needs to be adjusted and optimized. By performingthe configuration mentioned in this section, the following can be implemented:■ Changing the convergence speed of RIP network by adjusting RIP timers,■ Avoiding routing loop by configuring split horizon,■ Traffic sharing based on multiple equivalent routes,■ Packet validation in network environments with high security requirements,and■ Configuring RIP feature on an interface or link with special requirements.ConfigurationPrerequisitesBefore adjusting RIP, perform the following tasks:■ Configuring the network layer addresses of interfaces so that adjacent nodesare reachable to each other at the network layer■ Configuring basic RIP functionsEnable RIP traffic sharingacross interfacestraffic-share-across-interface OptionalBy default, RIP trafficsharing across interfacesis disabled.Table 223 Configure RIP to redistribute routes from another protocolOperation Command DescriptionEnter system view system-view -Enter RIP view rip -Set the default cost forRIP to import routes fromother protocolsdefault cost value OptionalWhen you use theimport-route commandwithout specifying the costof imported routes, thedefault cost you set herewill be used.Configure RIP toredistribute routes fromanother protocolimport-route protocol [ process-id |allow-ibgp ] [ cost value |route-policy route-policy-name ]*OptionalTable 222 Enable RIP traffic sharing across interfacesOperation Command Description
