Operation Manual – Routing ProtocolH3C S7500 Series Ethernet Switches Chapter 6 BGP Configuration6-21Caution:z It is not required to specify an AS number for creating an IBGP peer group.z If there already exists a peer in a peer group, you can neither change the ASnumber of the peer group nor delete a specified AS number through the undocommand.6.7.3 Configuring a BGP CommunityFollow these steps to configure a BGP community:To do... Use the command... RemarksEnter system view system-view —Enter BGP view bgp as-number —Configure the peers toadvertise communityattribute to the peer grouppeer group-nameadvertise-communityRequiredBy default, no communityattribute or extendedcommunity attribute isadvertised to any peergroup.Specify routing policy forthe routes exported to thepeer grouppeer group-nameroute-policyroute-policy-name exportRequiredBy default, no routingpolicy is specified for theroutes exported to thepeer group.Caution:z When configuring BGP community, make sure you use a routing policy to definethe specific community attribute, and then apply the routing policy when a peersends routing information.z For configuration of routing policy, refer to IP Routing Policy Configuration.6.7.4 Configuring BGP RRFollow these steps to configure BGP RR:
