RE: Cisco 6500 QoS Priority Queuing (DSCP & EXP based)

["Rampley Jr, Jim F" <jim.rampley () chartercom com>]

As it relates directly to QoS on 6700 series cards, yes those blades do COS based QoS.  So if you want to put voice 
traffic in a priority queue you would do something like this:

! map COS 5 to the priority queue, assuming you want COS 5 in the priority queue
priority-queue cos-map 1 5
! Set the queue limit to the size you want
priority-queue queue-limit 10

Jim


From: Chris Evans [mailto:chrisccnpspam2 () gmail com]
Sent: Wednesday, November 17, 2010 10:59 AM
To: Manu Chao
Cc: NANOG list; Rampley Jr, Jim F
Subject: Re: Cisco 6500 QoS Priority Queuing (DSCP & EXP based)


These are lan modules. They have fixed queues that you map traffic into.  Research lan qos methods and it should make 
sense.
On Nov 17, 2010 11:55 AM, "Manu Chao" <linux.yahoo () gmail com<mailto:linux.yahoo () gmail com>> wrote:
> 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 () chartercom com<mailto:jim.rampley () 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 () gmail com<mailto:linux.yahoo () 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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