Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

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

Re: BGP terminology question

  • From: Blaine Christian
  • Date: Mon Nov 07 10:59:01 2005


On Nov 7, 2005, at 8:32 AM, Howard C. Berkowitz wrote:

At 9:44 AM -1000 11/6/05, Randy Bush wrote:
> A peer should never announce a route it has already announced unless
 that route is withdrawn.
one of many counterexamples: change in igp will cause change in
med.  any attribute changes, and announcement is required.

e.g., an internal igp oscillation could cause what the op
describes.
For the OP, http://www.ietf.org/rfc/rfc3345.txt
I give good odds this is not the oscillation issue. More likely a flapping IGP link and a lack of pull-up use (or pull-ups not installed such that link flaps would be non external impacting) etc...

I like pull-ups on all core devices personally...



Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.