[113684] in North American Network Operators' Group
Re: IXP
daemon@ATHENA.MIT.EDU (bmanning@vacation.karoshi.com)
Sat Apr 18 06:11:19 2009
Date: Sat, 18 Apr 2009 10:09:00 +0000
From: bmanning@vacation.karoshi.com
To: Stephen Stuart <stuart@tech.org>
In-Reply-To: <200904180530.n3I5Ufd2047221@nb.tech.org>
Cc: Paul Vixie <vixie@isc.org>, "nanog@merit.edu" <nanog@merit.edu>
Errors-To: nanog-bounces@nanog.org
On Sat, Apr 18, 2009 at 05:30:41AM +0000, Stephen Stuart wrote:
> > Not sure how switches handle HOL blocking with QinQ traffic across trunks,
> > but hey...
> > what's the fun of running an IXP without testing some limits?
>
> Indeed. Those with longer memories will remember that I used to
> regularly apologize at NANOG meetings for the DEC Gigaswitch/FDDI
> head-of-line blocking that all Gigaswitch-based IXPs experienced when
> some critical mass of OC3 backbone circuits was reached and the 100
> MB/s fabric rolled over and died, offered here (again) as a cautionary
> tale for those who want to test those particular limits (again).
Ohhh... Scary Stories! :)
> The real lesson from the last fifteen or so years, though, is that
> bear skins and stone knives clearly have a long operational lifetime.
well... while there is a certain childlike obession with
the byzantine, rube-goldburg, lots of bells, knobs, whistles
type machines... for solid, predictable performance, simple
clean machines work best.
>
> Stephen
--bill
