Cisco 6500 QoS Priority Queuing (DSCP & EXP based)

Manu Chao linux.yahoo at gmail.com
Wed Nov 17 10:51:46 CST 2010


Thanks Jim,

The line cards are 6700 series only.

It seems (i will test it) that wrr commands can only be associated with COS
marking not DSCP nor EXP.

May be Priority Queuing is not supported for MPLS traffic on 6700 modules ?

On Wed, Nov 17, 2010 at 3:36 PM, Rampley Jr, Jim F <
jim.rampley at chartercom.com> wrote:

>
> This depends on which line cards you have in your chassis.  This
> configuration below won't work on 6700 series line cards.  You have to use
> the wrr commands.  I didn't test it, but MQC configuration below should work
> on ES series line cards.
>
>
>
> Jim
>
>
> -----Original Message-----
> From: Manu Chao [mailto:linux.yahoo at gmail.com]
> Sent: Wednesday, November 17, 2010 9:11 AM
> To: NANOG list
> Subject: Cisco 6500 QoS Priority Queuing (DSCP & EXP based)
>
> I would to translate following 7200 QoS configuration to Catalyst 6500:
>
> class-map match-any PQ
>  match  dscp ef
>  match mpls experimental topmost 5
>
> policy-map QOS-PE-OUT
>  class PQ
>   priority percent 33
>  class class-default
>
> AFAIK we need extra command on 6500 to enable Priority Queuing at the
> interface level but my problem is that interface priority command are only
> COS based not DSCP nor EXP. I may be wrong.
>
> I would appreciate any 6500 QoS help.
>
> Thanks in advance
>
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