Hi Zahid, I have tested the following with policy maps. The classification of the packet is performed at the ingress, so if the packet enters router as IP packet (Input Edge) then you must on egress interface match according DSCP value, if the packet enters router as labeled packet (LSRs in the Core of an MPLS) then you must on egress interface match according MPLS EXP value.
When I (re)read some docs it seems that the following rules apply for your scenario with wrr and might help. PFC3BXL or PFC3B mode MPLS QoS maps the EXP value to the internal DSCP using the EXP-to-DSCP global map The PFC3BXL or PFC3B assigns the egress CoS based on the internal DSCP-to-CoS global map. If the default internal DSCP-to-EXP and the internal DSCP-to-CoS maps are consistent, then the egress CoS has the same value as the imposed EXP. Maybe someone else can clarify much better. Regards, David On 6/11/08, Zahid Hassan <[EMAIL PROTECTED]> wrote: > Thanks David. > > One clarification about your earlier email. > > I am thinking of deploying this on my core facing interfaces. > > Basically on the interfaces where I have LDP/TDP enabled. > > So my question now is, will these interfaces be able to > understand or see any DSCP markings in MPLS packets ? > > Will a match on DSCP markings work for MPLS packets > on LDP/TDP enabled interfaces ? > > > Regards, > > > Zahid > > > > > -------- Original-Nachricht -------- > > Datum: Wed, 11 Jun 2008 13:52:07 +0200 > > > Von: "David Granzer" <[EMAIL PROTECTED]> > > An: "Zahid Hassan" <[EMAIL PROTECTED]> > > > CC: "Todd, Douglas M." <[EMAIL PROTECTED]>, [email protected] > > Betreff: Re: [c-nsp] CBWFQ/PQ Support on 6500/SUP720-3BXL > > > > On 6/11/08, Zahid Hassan <[EMAIL PROTECTED]> 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." <[EMAIL PROTECTED]> > > > > > > > An: "Zahid Hassan" <[EMAIL PROTECTED]> > > > > > > > CC: [email protected] > > > > 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: [EMAIL PROTECTED] > > > > [mailto:[EMAIL PROTECTED] On Behalf Of David Granzer > > > > Sent: Wednesday, June 11, 2008 5:46 AM > > > > To: Zahid Hassan > > > > Cc: [email protected] > > > > Subject: Re: [c-nsp] CBWFQ/PQ Support on 6500/SUP720-3BXL > > > > > > > > On 6/11/08, Zahid Hassan <[EMAIL PROTECTED]> 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" > > > > > <[EMAIL PROTECTED]> > An: "Zahid Hassan" <[EMAIL PROTECTED]> > CC: > > > > > "Cisco NSP Puck Nether Net (Cisco NSP)" > > <[email protected]>, > > > > > [EMAIL PROTECTED] > Betreff: Re: [c-nsp] CBWFQ/PQ Support > > on > > > > > 6500/SUP720-3BXL > > > > > > > > > > > > > > > > Hello, > > > > > > > > > > > > n 6/11/08, Zahid Hassan <[EMAIL PROTECTED]> 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 > > > > > > > _______________________________________________ > > > > > > > cisco-nsp mailing list [email protected] > > > > > > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > > > > > > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > > > > > > > > > > > > > > > > > > > > -- > > > > > GMX startet ShortView.de. 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