[98241] in North American Network Operators' Group
RE: Level3 / Qwest routing issues earlier today?
daemon@ATHENA.MIT.EDU (David Hubbard)
Thu Jul 26 16:31:01 2007
Date: Thu, 26 Jul 2007 16:20:52 -0400
From: "David Hubbard" <dhubbard@dino.hostasaurus.com>
To: <nanog@merit.edu>
Errors-To: owner-nanog@merit.edu
From: Chris Riling
>=20
> Hi Guys,
> =20
> Was anyone else seeing anything weird going on today? I=20
> have an OC-3 to Qwest, and another OC-3 to Level3, (among 2=20
> others to different providers) and when all was well, I was=20
> receiving a little over 221,000 prefixes from L3. Then,=20
> intermittently I would start losing prefixes from L3 and it=20
> would get down to a little over 220,000. When this happened,=20
> I noticed I was having intermittent connectivity issues=20
> (atleast to one IP I was trying to get to). Doing a=20
> traceroute during the "outage" the packets would hit Qwest's=20
> network, then L3's, then drop, or sometimes not. I have since=20
> admin downed my BGP peer to L3 and everything has=20
> stabilized, but I was wondering if anyone else saw anything going on?=20
I think there was something going on between Qwest and L3,
I saw the same thing with traffic coming from a network I
have equipment on which is connected with Qwest and tracing
to our home AS which has L3 amongst others. I set a
community for L3 to not advertise my prefixes to Qwest to
get around it. It appears back to normal now though, I
just tested.
Dave
