Verify That BGP Sessions Are Up
Purpose
After configuring BGP, you must verify that BGP peers are established and the sessions are up.
Action
To verify BGP peers and sessions, enter the following Junos OS CLI operational mode command:
user@host> show bgp summary
Sample Output
user@R1> show bgp summary Groups: 1 Peers: 5 Down peers: 0 Table Tot Paths Act Paths Suppressed History Damp State Pending inet.0 1 1 0 0 0 0 Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State|#Active/Received/Damped... 10.0.0.2 65432 1369 1373 0 0 11:25:11 0/0/0 0/0/0 10.0.0.3 65432 1369 1372 0 0 11:24:55 0/0/0 0/0/0 10.0.0.4 65432 1369 1372 0 0 11:25:03 0/0/0 0/0/0 10.0.0.5 65432 1369 1372 0 0 11:25:07 0/0/0 0/0/0 10.0.0.6 65432 1343 1344 0 1 11:10:55 1/1/0 0/0/0 user@R3> show bgp summary Groups: 1 Peers: 4 Down peers: 0 Table Tot Paths Act Paths Suppressed History Damp State Pending inet.0 2 2 0 0 0 0 Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State|#Active/Received/Damped... 10.0.0.1 65432 1375 1375 0 6 11:26:57 1/1/0 0/0/0 10.0.0.2 65432 43016 43016 0 0 2w0d22h 0/0/0 0/0/0 10.0.0.4 65432 74460 74461 0 0 3w4d20h 0/0/0 0/0/0 10.0.0.6 65432 1347 1347 0 6 11:13:10 1/1/0 0/0/0 user@R6> show bgp summary Groups: 1 Peers: 5 Down peers: 0 Table Tot Paths Act Paths Suppressed History Damp State Pending inet.0 1 1 0 0 0 0 Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State|#Active/Received/Damped... 10.0.0.1 65432 1348 1350 0 0 11:13:46 1/1/0 0/0/0 10.0.0.2 65432 1347 1351 0 0 11:14:02 0/0/0 0/0/0 10.0.0.3 65432 1347 1350 0 0 11:13:58 0/0/0 0/0/0 10.0.0.4 65432 1347 1350 0 0 11:13:54 0/0/0 0/0/0 10.0.0.5 65432 1347 1350 0 0 11:13:50 0/0/0 0/0/0
Meaning
The sample output from the ingress, transit, and egress routers shows that all routers in the network shown in BGP Network Topology have BGP peers established and sessions up.