[126875] in North American Network Operators' Group
Re: BGP convergence problem
daemon@ATHENA.MIT.EDU (Jared Mauch)
Tue Jun 8 12:22:29 2010
From: Jared Mauch <jared@puck.nether.net>
In-Reply-To: <AANLkTikNAdOYmSOKB17K7nu85hEftC-W-X2_GczG0Q_w@mail.gmail.com>
Date: Tue, 8 Jun 2010 12:22:04 -0400
To: "Andy B." <globichen@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Jun 8, 2010, at 10:27 AM, Andy B. wrote:
> I finally decided to shut down all peerings and brought them back one =
by one.
>=20
> Everything is stable again, but I don't like the way I had to deal
> with it since it will most likely happen again when DECIX or an other
> IX we're at is having issues.
>=20
> I've seen a few BGP convergence discussions on NANOG, but none about
> deadlock situations and what could be done to avoid them. Setting
> higher MTU or bigger hold queues did not help.
The Cisco 7600 and 6500 platforms are getting fairly old and have =
underpowered cpus these days.
Starting in SXH the control plane did not scale quite as well as in SXF. =
This got better in SXI, but is not back on par with SXF performance =
yet.
I mostly attribute this to a combination of bloat in software and =
routing tables. I would start to look for a replacement sooner rather =
than later.
- Jared=
