Verifying BGP Summary Information

Purpose

Verify that the BGP configuration is correct.

Action

From the CLI, enter the show bgp summary command.

Groups: 1 Peers: 3 Down peers: 0
Table          Tot Paths  Act Paths Suppressed    History Damp State    Pending
inet.0                 6          4          0          0          0          0
Peer               AS      InPkt     OutPkt    OutQ   Flaps Last Up/Dwn State|#Active/Received/Damped...
10.0.0.2        65002      88675      88652       0       2       42:38 2/4/0                0/0/0
10.0.0.3        65002      54528      54532       0       1     2w4d22h 0/0/0                0/0/0
10.0.0.4        65002      51597      51584       0       0     2w3d22h 2/2/0                0/0/0

What it Means

The output shows a summary of BGP session information. Verify the following information:

• For Groups, the total number of configured groups is shown.
• For Peers, the total number of BGP peers is shown.
• For Down Peers, the total number of unestablished peers is 0. If this value is not zero, one or more peering sessions are not yet established.
• Under Peer, the IP address for each configured peer is shown.
• Under AS, the peer AS for each configured peer is correct.
• Under Up/Dwn State, the BGP state reflects the number of paths received from the neighbor, the number of these paths that have been accepted, and the number of routes being damped (such as 0/0/0). If the field is Active, it indicates a problem in the establishment of the BGP session.

Related Topics

For a complete description of show bgp summary output, see the JUNOS Routing Protocols and Policies Command Reference.