North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: router startup behavior

  • From: Danny McPherson
  • Date: Tue Jan 15 23:42:50 2002

  
> 
> The routers in question run a BGP redistribution process every 
> 60 seconds and it just happened to run (quite often) just as 
> filters were being rewritten, resulting in "the gunk" not being 
> tagged as "keep internal" and therefore being advertised 
> externally.  A subsequent run of the BGP process realized a 
> policy was in place withdrew the routes.  

I should clarify here:

A subsequent run of the BGP resdistribution process with the 
newly rewritten policy in place resulted in the routes being 
tagged with the appropriate "keep internal" community and "re-
advertised".  Upon receipt of the now tagged routes, routers that
had previously announced the untagged routes withdrew them (per 
egress policy specification).

-danny