[192864] in North American Network Operators' Group
Re: 10G switch drops traffic for a split second
daemon@ATHENA.MIT.EDU (Peter Beckman)
Tue Nov 29 18:10:33 2016
X-Original-To: nanog@nanog.org
Date: Tue, 29 Nov 2016 18:10:28 -0500
From: Peter Beckman <beckman@angryox.com>
To: TJ Trout <tj@pcguys.us>
In-Reply-To: <CAP5r2ct5hTC94Pv=AMtmncYiA=ShPn8QD=a8qDVC95HKa-3cvQ@mail.gmail.com>
Cc: nanog <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On Tue, 29 Nov 2016, TJ Trout wrote:
> I plan on disabling FC on everything tonight, I've done that before but I
> want to be sure.
>
> Anything that can be done about the 2 x 1G peers trunking to the 10G router
> transition that can be fixed? should I be rate limiting the vlan for the
> peers at 1G so the 10G router isn't trying to send more than 1G?
This thread reminded me of a blog post that struck me as useful 5 years
ago, and again today. Measuring throughput, when dealing with buffers and
troubleshooting errors and packet loss, must be done at a sub-one-second
sampling rate.
http://blog.serverfault.com/2011/06/27/per-second-measurements-dont-cut-it/
Beckman
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Peter Beckman Internet Guy
beckman@angryox.com http://www.angryox.com/
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