[144117] in North American Network Operators' Group
Re: Silently dropping QoS marked packets on the greater Internet
daemon@ATHENA.MIT.EDU (Mark Radabaugh)
Fri Sep 2 11:57:28 2011
Date: Fri, 02 Sep 2011 11:56:48 -0400
From: Mark Radabaugh <mark@amplex.net>
To: nanog@nanog.org
In-Reply-To: <4E60E717.5050406@gmail.com>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On 9/2/11 10:24 AM, Jesse McGraw wrote:
> I've recently run into a hard-to-troubleshoot issue where, somewhere
> out in the greater Internet, someone was silently dropping packets
> from my company that happened to be marked with DSCP AF21. I'd fully
> expect others to either ignore these markings or zero them out but
> just silently dropping them seems unnecessary.
>
> So, how do you guys treat marked packets that come into/through your
> networks?
Generally strip at the border the specific DSCP values that would
trigger reserved bandwidth / priority handling in the distribution and
last mile network. Otherwise we leave them alone.
--
Mark Radabaugh
Amplex
mark@amplex.net 419.837.5015
