Operation Manual – IPv4 RoutingH3C S3610&S5510 Series Ethernet Switches Chapter 5 BGP Configuration5-37Note:z A confederation contains 32 sub-ASs at most. The as-number of a sub-AS takeseffect in the confederation only.z If routers not compliant with RFC 3065 exist in the confederation, you can use theconfederation nonstandard command to make the local router compatible withthese routers.5.8 Configuring BGP GRPerform the following configuration on the GR Restarter and GR Helper respectively.Note:When configured with BGP GR, the switch can only act as a GR Helper.Follow these steps to configure BGP GR:To do… Use the command… RemarksEnter system view system-view —Enter BGP view bgp as-number —Enable GR Capability forBGP graceful-restart RequiredDisabled by defaultConfigure the maximumtime allowed for the peerto reestablish a BGPsessiongraceful-restarttimer restart timerOptional150 seconds by defaultConfigure the maximumtime to wait for theEnd-of-RIB markergraceful-restarttimer wait-for-ribtimerOptional180 seconds by defaultNote:z In general the maximum time allowed for the peer (the GR restarter) to reestablish aBGP session should be less than the Holdtime carried in the OPEN message.z The End-Of-RIB (End of Router-Information-Base) indicates the end of routeupdates.
