[c-nsp] CBWFQ/PQ Support on 6500/SUP720-3BXL
David Granzer
dgranzer at gmail.com
Wed Jun 11 07:52:07 EDT 2008
On 6/11/08, Zahid Hassan <zhassan at gmx.net> wrote:
> Thanks Douglas, I am still tyring to the find out if there is a way to do this with wrr-queues.
>
> The bit that I am not sure about is how to match on EXP bits within wrr-queues.
>
>
> Does anyone know if this is at all possible ?
Zahid see what I wrote in preceding email. I think this is what you want.
For MPLS packets the EXP value is mapped into an internal DSCP and you
can assign into wrr queues according DSCP value.
David
>
>
> Regards,
>
>
> Zahid
>
>
>
>
> -------- Original-Nachricht --------
> > Datum: Wed, 11 Jun 2008 05:52:42 -0400
> > Von: "Todd, Douglas M." <DTODD at PARTNERS.ORG>
>
> > An: "Zahid Hassan" <zhassan at gmx.net>
>
> > CC: cisco-nsp at puck.nether.net
> > Betreff: RE: [c-nsp] CBWFQ/PQ Support on 6500/SUP720-3BXL
>
>
> > Zahid:
> >
> > We were looking at the same senerio and found that we must use a SIP type
> > card
> > to do any traffic shaping. The 6500 does not have this type of feature.
> > SIP-200/400 for either DS1/100FD/1G type of connections.
> >
> > Hope this helps.
> >
> > Douglas
> >
> > -----Original Message-----
> > From: cisco-nsp-bounces at puck.nether.net
> > [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of David Granzer
> > Sent: Wednesday, June 11, 2008 5:46 AM
> > To: Zahid Hassan
> > Cc: cisco-nsp at puck.nether.net
> > Subject: Re: [c-nsp] CBWFQ/PQ Support on 6500/SUP720-3BXL
> >
> > On 6/11/08, Zahid Hassan <zhassan at gmx.net> wrote:
> > > Many thanks for this David.
> > >
> > > Yes, the "priority" and as well as the "bandwidth" command doesn't
> > > seems to be supported in either ingress or egress direction.
> > >
> > > I am thinking of configuring "wrr-queues" and I don't know if I can
> > > at all match on EXP bits.
> > >
> > > Does anyone know how to match on EXP bits within a wrr-queue ?
> >
> > For MPLS packets, the EXP value is mapped into an internal DSCP so that
> > the
> > PFC3BXL or PFC3B can apply non-MPLS QoS marking and policing.
> >
> > http://www.cisco.com/en/US/docs/switches/lan/catalyst6500/ios/12.2SXF/native/con
> > figuration/guide/mplsqos.html
> >
> > David
> >
> > >
> > >
> > > Thanks in advance.
> > >
> > >
> > > Zahid
> > >
> > > -------- Original-Nachricht --------
> > > > Datum: Wed, 11 Jun 2008 10:36:32 +0200 > Von: "David Granzer"
> > > <dgranzer at gmail.com> > An: "Zahid Hassan" <zhassan at gmx.net> > CC:
> > > "Cisco NSP Puck Nether Net (Cisco NSP)" <cisco-nsp at puck.nether.net>,
> > > zhassan at bis-internet.co.uk > Betreff: Re: [c-nsp] CBWFQ/PQ Support on
> > > 6500/SUP720-3BXL
> > >
> > >
> > > > Hello,
> > > >
> > > > n 6/11/08, Zahid Hassan <zhassan at gmx.net> wrote:
> > > > > Dear All,
> > > > >
> > > > >
> > > > > I have a requirement to implement CBWFQ/LLQ matching > > on
> > > EXP bits on a 6500 with SUP720-3BXL.
> > > > >
> > > > > Since the "priority" command is not supported within a
> > > policy-map, > > I am wondering if this can be achieved using
> > "wrr-queues".
> > > > >
> > > > > This is the failure message when I apply the service-policy:
> > > > >
> > > > > 6500(config-if)#service-policy input CORE-THREE-CLASS > >
> > > priority command is not supported in input direction > > for this
> > > interface configuration failed!
> > > >
> > > > above you try using priority in ingress direction which is not >
> > > supported generally. Second problem in your case will be that >
> > > 6500/7600 LAN cards does not support CBWFQ like 7200/7301 etc. You >
> > > must use L2 QoS, see "Quality of Service on Cisco Catalyst 6500"
> > > >
> > > >
> > > http://www.cisco.com/en/US/prod/collateral/switches/ps5718/ps708/prod_
> > > white_paper0900aecd803e5269.html
> > > >
> > > > David
> > > >
> > > >
> > > > >
> > > > > This is for a WS-X6704-10GE linecard with supports 1p7q8t.
> > > > >
> > > > > I will be really grateful for input or pointers about this.
> > > > >
> > > > > Thanking in you advance.
> > > > >
> > > > >
> > > > > Regards,
> > > > >
> > > > >
> > > > >
> > > > > Zahid
> > > > > _______________________________________________
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> > >
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