BGP neighbor Verification....

[George-Sl]

Can we verify the BGP full neighbor establishment by just show ip bgp neighbor?

thx

[Mark Malone]

Its easier to see it with below summary command but yes you can verify with that command just look for the Established section and timer ----BGP state = Established, up for 5d01h

#sh ip bgp summ
BGP router identifier 172.x.x.x, local AS number 65xxx
BGP table version is 3206, main routing table version 3206
901 network entries using 118932 bytes of memory
2334 path entries using 121368 bytes of memory
312/134 BGP path/bestpath attribute entries using 52416 bytes of memory
67 BGP AS-PATH entries using 2496 bytes of memory
52 BGP community entries using 1248 bytes of memory
14 BGP extended community entries using 560 bytes of memory
2 BGP route-map cache entries using 64 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
Bitfield cache entries: current 3 (at peak 4) using 96 bytes of memory
BGP using 297180 total bytes of memory
444 received paths for inbound soft reconfiguration
BGP activity 1014/113 prefixes, 4295/1961 paths, scan interval 60 secs

Neighbor        V          AS MsgRcvd MsgSent   TblVer  InQ OutQ Up/Down  State/PfxRcd
10x.x.x           4       4445   24259   21456     3206    0    0 5d01h         741
172.x.x.x        4      65200   62102   61764     3206    0    0 5d01h         870
172.x.x.x        4      65200   61225   61662     3206    0    0 5d01h         134

[George-Sl]

you mean in this column?? ---> State/PfxRcd

[Mark Malone]

The Up/Down section --- timer shows each neighbour is up 5 days 1 hour , if it was failed neighbour state it would say Idle/Active where the timer is now instead of giving uptime

The prefix is how many routes im pulling from ISP provider or from my ibgp neighbour connections