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Silently dropping QoS marked packets on the greater Internet

Subject: Silently dropping QoS marked packets on the greater Internet
From: jlmcgraw at gmail.com (Jesse McGraw)
Date: Fri, 02 Sep 2011 10:24:23 -0400
In-reply-to: <E36EB8E60B5EB244AAFCFEF0AF0A116D02FC90C57B@MS-EX7MB-P03.corp.se.sempra.com>
References: <CAB+pCuF6BNsKXbiAEXPqMXucqTJ0hfTLbDrqWBLkoY3z8+FH0g@mail.gmail.com> <E36EB8E60B5EB244AAFCFEF0AF0A116D02FC90C57B@MS-EX7MB-P03.corp.se.sempra.com>

   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?

Follow-Ups:
- Silently dropping QoS marked packets on the greater Internet
  - From: saku at ytti.fi (Saku Ytti)
- Silently dropping QoS marked packets on the greater Internet
  - From: jsaxe at briworks.com (Jeff Saxe)
- Silently dropping QoS marked packets on the greater Internet
  - From: mark at amplex.net (Mark Radabaugh)
- Silently dropping QoS marked packets on the greater Internet
  - From: mtinka at globaltransit.net (Mark Tinka)

References:
- Access and Session Control System?
  - From: BEJones at semprautilities.com (Jones, Barry)

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