North American Network Operators Group
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Re: BGP issues

  • From: Iljitsch van Beijnum
  • Date: Wed Sep 17 16:40:36 2003

On woensdag, sep 17, 2003, at 22:04 Europe/Amsterdam, Bret Baptist wrote:

Right now I have visi.com as one provider (AS8015), and Qwest (AS3908) as the other. When I look at the as-paths for my netblocks the ones from visi.com look fine, 208.42.20.0/23 and 208.42.104.0/23, the ones from Qwest go through visi.com and then on to us, 65.116.186.0/24, 65.121.8.0/23. The Qwest networks are the ones that I am having problems reaching hosts from or getting to from other networks.
When I look at telnet:route-views.oregon-ix.net I see lots of flap dampening. So your BGP announcements keep going down and coming back up. Also in most cases the AS path ends in 3908 8015 30309 and/or there is lots of prepending happening all over the place.

Iljitsch van Beijnum