[c-nsp] reset peering session after withdrawing a more specific route

[Rolf Mendelsohn]

Hi Jeff,

A better bet would be to announce both routes and then go to some 
route-servers and confirm that the new route has been accepted by your peers.

In the unlikely event that one of them has made a mistake, or hasn't updated 
their prefixes, your network could be partially unreachable if you had just 
changed the advertisement.

i think a clear ip bgp A.B.C.D soft out would be required, easiest way to 
check this would be a show ip bgp neigh A.B.C.D advertised-routes

cheers
/rolf

On Saturday 10 September 2005 08:05 am, Jeff Chan wrote:
> We are growing a /20 to a /19 and I'm wondering if we can simply
> start announcing the new route and stop announcing the old route
> without resetting our peering sessions.  Would the internal/external
> route maps be happy with this or is a reset necessary?  (We have
> updated our outbound prefix filters appropriately and so have our
> peers.)  Would the old route get appropriately dropped externally
> this way?
>
> Probably this is a newbie question for folks who do this all the
> time, but we do it pretty infrequently.
>
> Jeff C.