From: Robert McCallum (rmccallum@thrupoint.net)
Date: Wed Aug 06 2008 - 12:43:10 ART
Layer 3 qos does not work on LAN cards. You need to use mls qos structures
to do this and you cannot see the bandwidth usage on such interfaces - hence
the reason why they are soooooo cheap.
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On
> Behalf Of Reinhold Fischer
> Sent: 06 August 2008 15:53
> To: Harindha Fernando
> Cc: comserv@groupstudy.com; ccielab@groupstudy.com
> Subject: Re: QoS for mVPN
>
> Harin,
>
> you are assuming that QoS is not working, because your output
> policy does not show matching packets, right? Can you show
> the qos config of the outgoing interface? Since this is a LAN
> card, all the restrictions/limitations of cat6500 qos do apply ...
>
> reinhold
>
>
> On Wed, Aug 06, 2008 at 05:27:35PM +0300, Harindha Fernando wrote:
> > Hi,
> >
> > we are using SIP-400 with 5x1G SPA as the uplinks to MPLS,
> and 6548 as
> > the client facing interface.
> >
> > yes, unicast QoS is working fine. but does the GRE maps the
> inner QoS
> > to it's header or we have use qos pre-classify ?
> >
> > Rgds,
> > Harin
> >
> > On Wed, Aug 6, 2008 at 5:18 PM, Reinhold Fischer
> > <Reinhold.Fischer@gmx.net>wrote:
> >
> > > On Wed, Aug 06, 2008 at 04:14:11PM +0300, Harindha Fernando wrote:
> > > > Hi,
> > > >
> > > > I have been trying to set QoS for mVPN in MPLS QoS but
> I am still
> > > > unable
> > > to
> > > > achieve it. below is the scenario...
> > > >
> > > > Reciever1 -->PE1-->P1-->P2-->PE2--->Source
> > > > |
> > > > |
> > > > P3--->PE3--->Receiver2
> > > >
> > > > Core - PIM SSM
> > > > Customer mVPN - PIM-SSM with static SSM mapping
> > > >
> > > > mVPN is working fine, but I need to offer some QoS in the core.
> > > >
> > > > at PE2 customer interface I have a input policy-map setting all
> > > muliticast
> > > > traffic on that interface, set to DSCP AF41. the MPLS
> interface
> > > > towards core I have an output policy allocating BW
> based on dscp
> > > > or exp marking
> > > and
> > > > also I do set exp values. DSCP AF41 = Exp 4
> > > >
> > > > when I put a output policy in the PE1 and PE3 customer
> interfaces
> > > > to
> > > match
> > > > DSCP AF41 I do not see any matching packets.
> > > >
> > > > since mVPN traffic is going through GRE tunnels I don't see any
> > > possibility
> > > > of setting the DSCP values in the GRE header as this Tunnel
> > > > interfaces
> > > are
> > > > not configurable.
> > > >
> > > > can any body tell how can we achieve the QoS for mVPN ?
> > > >
> > > > I am using 7600s with RSP720 and 12.2(33)SRC1.
> > > >
> > >
> > > Harin,
> > >
> > > what kind of linecards are in use on the 7600s? Are you sure that
> > > your unicast QoS is OK and you have only issues with the
> multicast
> > > QoS? When the multicast traffic is encapsulated with the
> multipoint
> > > GRE header, it should copy the QoS information of the original
> > > packet into the new header. I did not verify this on 7600/SRC but
> > > with 6500/SXH2a. Just to make sure: You did consider that
> multicast
> > > is forwarded as IP and not MPLS and your QoS settings are
> adjusted to this?
> > >
> > > The cisco-nsp mailing list is also a good place to ask
> about such stuff....
> > >
> > > hth
> > >
> > > reinhold
>
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