BGP table status codes

The following is an example of a BGP table:

R1#show ip bgp
BGP table version is 2, local router ID is 192.168.13.1
Status codes: s suppressed, d damped, h history, * valid, > best, i - internal,
              r RIB-failure, S Stale
Origin codes: i - IGP, e - EGP, ? - incomplete

   Network          Next Hop            Metric LocPrf Weight Path
*  4.4.4.4/32       192.168.13.3                           0 3 4 i
*>                  192.168.12.2                           0 2 4 i

The meaning of the status codes can be found below:

  • "s" for suppressed: BGP knows about this network but is not advertising it, usually because it is part of a summarized route.
  • "d" for dampened: BGP can stop advertising a network that flaps (goes up and down) too often until it is stable for a period of time.
  • "h" for history: BGP knows about this network but does not currently have a valid route to it.
  • "*" for valid: The route is valid and BGP is able to use it.
  • ">" for best: The route has been selected as the best path and has been installed in the routing table.
  • "i" for internal: The route was learned from an iBGP peer.
  • "r" for RIB failure: The route was advertised to BGP but it was not installed in the IP routing table. This might be because of another protocol having the same route with a better administrative distance.
  • "S" for stale: Used with nonstop forwarding to indicate that the route is stale and needs to be refreshed when the peer is reestablished.

https://www.ciscopress.com/articles/article.asp?p=1565538&seqNum=7

https://networklessons.com/bgp/how-to-read-the-bgp-table

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