RE: mls qos map cos-dscp

Hello Emir,

Your DSCP values will be mapped to CoS values based on the dscp-cos map.
Here is the default dscp-cos map on a current 3560:

SW1#sh mls qos map dscp-cos
   Dscp-cos map:
     d1 : d2 0 1 2 3 4 5 6 7 8 9
     ---------------------------------------
      0 : 00 00 00 00 00 00 00 00 01 01
      1 : 01 01 01 01 01 01 02 02 02 02
      2 : 02 02 02 02 03 03 03 03 03 03
      3 : 03 03 04 04 04 04 04 04 04 04
      4 : 05 05 05 05 05 05 05 05 06 06
      5 : 06 06 06 06 06 06 07 07 07 07
      6 : 07 07 07 07

SW1#

Note that is simply divides the dscp value by 8 throws away the remainder.

So dscp 10 would map to cos 01 and dscp 40 would map to 05.

HTH,

Bob Sinclair CCIE 10427 CCSI 30427
CIERS2 Online Instructor
www.tinyurl.com/ciers2online

> -----Original Message-----
> From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
> emir d souza
> Sent: Sunday, August 29, 2010 9:48 PM
> To: Cisco certification
> Subject: mls qos map cos-dscp
>
> Hi,
>
> I'm a bit confused. My 3560 has this set: mls qos map cos-dscp 0 8 16
> 24 34
> 46 48 56
>
> Question: What if I have set dscp markings for DSCP 10 or 40? What CoS
> values will they be mapping to?
>
> Regards,
>
> emir
>
>
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Received on Sun Aug 29 2010 - 22:09:06 ART