BGP - General question

[johnhsnow]

When I remove a BGP route from the running config on my corebox - I still see the route when I use show ip bgp neighbors x.x.x.x advertised-routes. I know I can clear the routing table by using clear ip bgp * soft [in|out] but does anyone know how long it will take before the table deletes the route from its table?

[Georg Pauwen]

Hello,

the default minimum time between advertisement runs is 30 seconds, so it would take about 30 seconds for the route to disappear from the BGP routing table.

HTH,

GP

[sdoremus33]

Clear ip bgp* simply causes the TCP session between neighbors to be reset and since BGP is a fast converged protocol the cache is cleared and routes will appear roughly 30-40 seconds