ffffffff ffffffff ffffffff ffffffff 00150306 00000000Local host: 192.168.128.1, Local port: 179Foreign host: 192.168.128.2, Foreign port: 65464BGP neighbor is 192.168.128.3, remote AS 100, external linkMember of peer-group BBB for session parametersBGP version 4, remote router ID 192.168.128.3BGP state ESTABLISHED, in this state for 00:00:37Last read 00:00:36, last write 00:00:36Hold time is 180, keepalive interval is 60 secondsReceived 30 messages, 0 in queue4 opens, 2 notifications, 4 updates20 keepalives, 0 route refresh requestsSent 29 messages, 0 in queue4 opens, 1 notifications, 4 updates20 keepalives, 0 route refresh requestsMinimum time between advertisement runs is 30 secondsMinimum time before advertisements start is 0 secondsCapabilities received from neighbor for IPv4 Unicast :MULTIPROTO_EXT(1)Capabilities received from neighbor for IPv4 Unicast :MULTIPROTO_EXT(1)ROUTE_REFRESH(2)CISCO_ROUTE_REFRESH(128)Update source set to Loopback 0Peer active in peer-group outbound optimizationFor address family: IPv4 UnicastBGP table version 1, neighbor version 1Prefixes accepted 1 (consume 4 bytes), withdrawn 0 by peerPrefixes advertised 1, denied 0, withdrawn 0 from peerConnections established 4; dropped 3Last reset 00:00:54, due to user resetR1#Example of Enabling Peer Groups (Router 2)R2#confR2(conf)#router bgp 99R2(conf-router_bgp)# neighbor CCC peer-groupR2(conf-router_bgp)# neighbor CC no shutdownR2(conf-router_bgp)# neighbor BBB peer-groupR2(conf-router_bgp)# neighbor BBB no shutdownR2(conf-router_bgp)# neighbor 192.168.128.1 peer AAAR2(conf-router_bgp)# neighbor 192.168.128.1 no shutR2(conf-router_bgp)# neighbor 192.168.128.3 peer BBBR2(conf-router_bgp)# neighbor 192.168.128.3 no shutR2(conf-router_bgp)#show conf!router bgp 99network 192.168.128.0/24neighbor AAA peer-groupneighbor AAA no shutdownneighbor BBB peer-groupneighbor BBB no shutdownneighbor 192.168.128.1 remote-as 99neighbor 192.168.128.1 peer-group CCCneighbor 192.168.128.1 update-source Loopback 0neighbor 192.168.128.1 no shutdownneighbor 192.168.128.3 remote-as 100neighbor 192.168.128.3 peer-group BBBneighbor 192.168.128.3 update-source Loopback 0neighbor 192.168.128.3 no shutdownR2(conf-router_bgp)#endBorder Gateway Protocol IPv4 (BGPv4) 256
