3560 QoS policing/marking & egress queuing

From: Gavin Schokman <g_schokman_at_yahoo.com.au>
Date: Sat, 31 Oct 2009 13:11:21 -0000

Hi all,
 
Quick one on the policed-dscp map and egress queuing on the 3560.
Second paragraph on page 34-8 of the 3560 documentation finishes by stating
that "marked down packets use the same queues as the original QoS label to
prevent packets in a flow from getting out of order".
Clearly this applies to ingress queuing, but the query I've got is, does
this statement apply to egress queuing as well?
 
i.e. is egress queue chosen based on the unmodified internal-DSCP
(calculated at packet ingress), or the modified internal-DSCP (after any
marking has been applied)?
 
 
Cheers,
Gavin

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Received on Sat Oct 31 2009 - 13:11:21 ART

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