From: Hobbs (deadheadblues@gmail.com)
Date: Sun Sep 28 2008 - 23:37:30 ART
This is a wonderful explanation.
http://blog.internetworkexpert.com/2008/03/03/bridging-the-gap-between-3550-and-3560-qos-part-i/
The answer to your question is in section 2. It's determined by the way it
was classified (trust cos or trust dscp)
On Sun, Sep 28, 2008 at 12:48 PM, Pavel Bykov <slidersv@gmail.com> wrote:
> Hi group.
> My question is:
> If I have both COS and DSCP fields set, with CoS=3 and DSCP=24, and I have
> both DSCP and COS output queue maps like so:
>
> mls qos srr-queue output cos-map queue 2 3
> mls qos srr-queue output dscp-map queue 3 24
>
> Which output queue will the packet fall in to?
>
> I know what will happen if this would be an input (trust option) but there
> is no such thing as trust on the output, after Internal DSCP has been
> consulted. So how is it decided in this case?
>
> Thanks.
>
>
> P.S.: Interface is trunk and does have 802.1q/802.1p. There are no counters
> that would show the queue match, for example "show mls qos interface x/x
> statistics" shows output VALUES, not queues. But i know the values exactly
> and need to know output queues.
>
>
> --
> Pavel Bykov
> -------------------------------------------------
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