From: McCallum, Robert (robert.mccallum@thus.net)
Date: Wed Jun 02 2004 - 13:12:40 GMT-3
First of all you need to enable mls globally for this to actually start
matching packets. Secondly (1 year ago) you had to match not just IP but
also MAC. You could not just match any as this was not supported on a 3550
FE port at the time.
Robert McCallum
CCIE #8757 R&S
01415663448
07818002241
> -----Original Message-----
> From: Bob Sinclair [mailto:bsin@cox.net]
> Sent: 02 June 2004 16:42
> To: Lileikis, Gary; ccielab@groupstudy.com
> Subject: Re: A Question about 3550 QoS
>
>
> Gary,
>
> I don't know why it is ( beyond "that is how the guys wrote
> it"). But it does seem that the class-default is inactive
> unless there exists another class in the map. Cannot find any
> documentation on it. I tested this on Cat 3550 using
> 12.1(19). In order for class-default to mark precedence,
> needed to have another class, even if nothing matched the other class.
>
> HTH,
>
> Bob Sinclair
> CCIE #10427, CISSP, MCSE
> www.netmasterclass.net
>
> ----- Original Message -----
> From: "Lileikis, Gary" <gary.lileikis@unisys.com>
> To: <ccielab@groupstudy.com>
> Sent: Wednesday, June 02, 2004 9:55 AM
> Subject: RE: A Question about 3550 QoS
>
>
> > Why is it that the policy-map at the beginning of this
> thread did not
> > work?
> >
> > Thanks!!
> > Gary
> >
> >
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]
> On Behalf
> > Of Chris Larson
> > Sent: Wednesday, June 02, 2004 9:20 AM
> > To: Peng Zheng; Brent.Bowers@cox.com; tomasz.szymanski@trecom.pl
> > Cc: ccielab@groupstudy.com
> > Subject: Re: A Question about 3550 QoS
> >
> > I have not tested it out but I think that the 3550 has a
> default layer
> > 2 CoS to layer 3 DSCP mapping. Therefore if you configure
> QoS and an
> > ethernet frame is CoS marked then the default is to map the
> CoS into
> > the appropriate
> > DSCP and you would see the ToS value changed in the packet.
> >
> >
> > ----- Original Message -----
> > From: "Peng Zheng" <zpnist@yahoo.com>
> > To: <Brent.Bowers@cox.com>; <tomasz.szymanski@trecom.pl>
> > Cc: <ccielab@groupstudy.com>
> > Sent: Wednesday, June 02, 2004 1:56 AM
> > Subject: RE: A Question about 3550 QoS
> >
> >
> > > Can anyone verify this because I don't have access to
> > > a 3550?
> > >
> > > --- Brent.Bowers@cox.com wrote:
> > > > In my testing on a 3550 it does actually change the
> > > > TOS bits. If you have access to a 3550 please test
> > > > it out and check it against a packet analyzer to
> > > > verify the change.
> > > >
> > > > -----Original Message-----
> > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On
> > > > Behalf Of Peng Zheng
> > > > Sent: Tuesday, June 01, 2004 3:01 PM
> > > > To: Bowers, Brent (CCI-San Diego);
> > > > tomasz.szymanski@trecom.pl
> > > > Cc: ccielab@groupstudy.com
> > > > Subject: RE: A Question about 3550 QoS
> > > >
> > > > I think this will set cos, not ip precedence. Am I wrong?
> > > >
> > > > --- Brent.Bowers@cox.com wrote:
> > > > > mls qos cos 5
> > > > > mls qos cos override
> > > > >
> > > > > Should do the trick...
> > > > >
> > > > >
> > > > >
> > > > > -----Original Message-----
> > > > > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On
> > > > > Behalf Of Tomasz Szymanski
> > > > > Sent: Tuesday, June 01, 2004 1:49 PM
> > > > > To: Peng Zheng
> > > > > Cc: ccielab@groupstudy.com
> > > > > Subject: Re: A Question about 3550 QoS
> > > > >
> > > > > I tried some examples today and watched the
> > > > packets
> > > > > with Ethereal.
> > > > >
> > > > > class class-default will not match ip traffic (I
> > > > > don't know why but it
> > > > > didn't work)
> > > > >
> > > > >
> > > > > Peng Zheng wrote:
> > > > >
> > > > > >Requirement: on port fa 0/6, it is in Vlan 10,
> > > > set
> > > > > ip
> > > > > >preference of all traffic from that port to
> > > > > critical.
> > > > > >
> > > > > >Can I use this?
> > > > > >
> > > > > >policy-map TEST
> > > > > >class class-default
> > > > > >set ip preference critical
> > > > > >
> > > > > >int fa 0/6
> > > > > >switch access vlan 10
> > > > > >switch mode access
> > > > > >service-policy input TEST
> > > > > >
> > > > > >Thanks for any reply.
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >
> > > > > >__________________________________
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