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Junos® OS For Dummies®, 2nd Edition by Michael Bushong, Cathy Gadecki, Walter Goralski

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Monitoring BGP

Perhaps you sometimes find it hard to tell whether BGP is really working. The key to finding out if the session you configured is established is the show bgp neighbor command, as shown in Listing 13-1.

Listing 13-1: Monitoring BGP with the show bgp neighbor Command

mike@router1> show bgp neighbor Peer: 10.245.245.1+179 AS 200 Local: 10.245.245.3+3770 AS 100 Type: External State: Established Flags: <ImportEval Sync> Last State: OpenConfirm Last Event: RecvKeepAlive Last Error: None Options: <Multihop Preference LocalAddress HoldTime AddressFamily PeerAS Rib-group Refresh> Address families configured: iso-vpn-unicast Local Address: 10.245.245.3 Holdtime: 90 Preference: 170 Number of flaps: 0 Peer ID: 10.245.245.1 Local ID: 10.245.245.3 Active Holdtime: 90 Keepalive Interval: 30 Peer index: 0 NLRI advertised by peer: iso-vpn-unicast NLRI for this session: iso-vpn-unicast Peer supports Refresh capability (2) Table bgp.isovpn.0 Bit: 10000 RIB State: BGP restart is complete RIB State: VPN restart is complete Send state: in sync Active prefixes: 3 Received prefixes: 3 Suppressed due to damping: 0 Advertised prefixes: 3 Table aaaa.iso.0 RIB State: BGP restart is complete RIB State: VPN restart is complete Send state: not advertising Active prefixes: 3 Received prefixes: 3 Suppressed due to damping: 0 Last traffic (seconds): Received 6 Sent 5 Checked 5 Input messages: Total 1736 Updates 4 Refreshes 0 Octets 33385 Output messages: Total 1738 Updates 3 Refreshes 0 Octets ...

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