I have attached a document to show our BGP topology with our ISP. We have a FR Circuit from our ISP to Corp Office and a FR circuit to our Production location. We had a major outage when our Production FR circuit went down and it impacted our end users. Working with the ISP, we went with a BGP config to re-route traffic from router FES02 over to FES01 into Corp router, across the p2p T1 into the Prod router. At the time of implementation, it was tested and worked.
We recently had another outage and this time BGP failed. What are some troubleshooting methods I can do on my side to validate that the BGP config is working properly? I have checked some standard show commands and things appear to be ok but I do not know BGP well enough to make sure I am looking at the info properly.
Also, what steps do I need to complete to enable BGP debugging AND have the router display the activity real time?
Below are the summary outputs
CORP Router:
# sh ip bgp summary
BGP router identifier 172.19.17.223, local AS number 64515
BGP table version is 23, main routing table version 23
4 network entries using 468 bytes of memory
6 path entries using 312 bytes of memory
6/4 BGP path/bestpath attribute entries using 744 bytes of memory
2 BGP AS-PATH entries using 48 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 1572 total bytes of memory
BGP activity 6/2 prefixes, 21/15 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
172.16.25.26 4 20057 125162 125169 23 0 0 12w2d 2
172.16.220.25 4 64515 125220 125221 23 0 0 1w2d 3
PROD Router:
#sh ip bgp summary
BGP router identifier 172.19.17.224, local AS number 64515
BGP table version is 13, main routing table version 13
4 network entries using 468 bytes of memory
6 path entries using 312 bytes of memory
6/3 BGP path/bestpath attribute entries using 744 bytes of memory
2 BGP AS-PATH entries using 48 bytes of memory
0 BGP route-map cache entries using 0 bytes of memory
0 BGP filter-list cache entries using 0 bytes of memory
BGP using 1572 total bytes of memory
BGP activity 4/0 prefixes, 10/4 paths, scan interval 60 secs
Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down State/PfxRcd
172.16.25.29 4 20057 14061 14064 13 0 0 04:54:35 2
172.16.220.26 4 64515 14251 14254 13 0 0 1w2d 3
