3Com Router 3000 Ethernet FamilyConfiguration Guide Chapter 2 Dynamic Routing Standby3Com Corporation2-2the secondary link. If the route goes DOWN before the timer expires, it does notdisconnect the secondary link.2.2 Dynamic Routing Standby ConfigurationDynamic routing standby configuration tasks include:z Create a dynamic routing standby groupz Apply a dynamic routing standby group to the interfacez Configure secondary link disconnection delayNote:Before configuring dynamic routing standby, identify:z Primary and secondary interfaces. You should determine which interfaces on whichrouter are intended for primary and secondary use. You can define multipleinterfaces on more than one router.z Network segment (interface IP address or network) to be observed, such asinterface IP address of a remote router.I. Creating a dynamic routing standby groupPerform the following configuration in system view.Table 2-1 Create a dynamic routing standby groupOperation CommandCreate a dynamic routing standby groupand assign a to-be-monitored networksegment to the groupstandby routing-rule group-number ipip-address address-maskRemove a dynamic routing standbygroup, or remove the monitored segmentfrom the specified dynamic routingstandby groupundo standby routing-rulegroup-number [ ip ip-address ip-mask ]Each dynamic routing standby group may contain up to 255 monitored networksegments. The primary link of a dynamic routing standby group is regardeddisconnected only when the routes of all the monitored network segments in the groupare removed.
