Re: 3650 COS/DSCP to queue mapping

Hi Matt!

What an AWESOME question. While the documentation does not make it clear,
the value that you trust on ingress, in your example, CoS, is the marking
that is used in the appropriate default queue mapping table on the egress
port.

Anthony Sequeira, CCIE, CCSI, VCP
http://www.stormwind.com
Twitter: @compsolv
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On 8/29/12 9:11 PM, "Matt Eason" <matt.d.eason_at_gmail.com> wrote:

>Hi Guys,
>
>
>
>Can you help clarify the following. If I have a switchport configured on a
>3560 to trust CoS inbound, that cos value is then mapped to an internal
>DSCP value via the COS>DSCP map. Thats fine.
>
>
>
>Does this switch then determine the output queue from the original CoS
>value or the internal DSCP value which was assigned by the switch? I see
>both a DSCP>Output queue map and a COS>Output queue map exists.
>
>
>
>Thanks,
>
>
>
>Matt
>
>
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Received on Thu Aug 30 2012 - 10:45:38 ART