Operation Manual – Routing ProtocolH3C S7500 Series Ethernet Switches Chapter 3 RIP Configuration3-9To do... Use the command... RemarksSet the default cost forRIP to redistribute routesfrom other protocolsdefault cost valueOptionalWhen 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-policyroute-policy-name ]*OptionalNote:Use the keyword allow-ibgp with care when redistributing routes from BGP, becauseit redistributes IBGP routes without keeping the AS_PATH attribute, which may leadto routing loops between ASs.3.5 RIP Network Adjustment and OptimizationIn some special network environments, some RIP features need to be configured andRIP network performance needs to be adjusted and optimized. By performing theconfiguration mentioned in this section, the following can be implemented:z Changing the convergence speed of RIP network by adjusting RIP timersz Avoiding routing loop by configuring split horizonz Packet validation in network environments with high security requirementsz Configuring RIP feature on an interface or link with special requirements3.5.1 Configuration PrerequisitesBefore adjusting RIP, perform the following tasks:z Configuring IP address on each interface, and make sure that all adjacent nodesare reachable with each otherz Configuring basic RIP functions3.5.2 Configuration TasksI. Configure RIP timersFollow these steps to configure RIP timers:
