From: Wilson, Ryan # Atlanta (Ryan.Wilson@relayhealth.com)
Date: Thu Oct 11 2007 - 05:54:36 ART
I think I'm seeing some light, or maybe it's a reflection.
policy-map test
class class-default
fair-queue
policy-map test2
class test
Rack1R3(config-subif)# no service-policy output test2
Rack1R3(config-subif)#service-policy output test
CBWFQ : Not supported on subinterfaces
Rack1R3(config-subif)#service-policy output test2
:)
Ouch!!! With that being said, is the following true?
FRTS= No queuing on main interface and allows fair queuing through a
service-policy via a map class on sub-interfaces. Requires "frame-relay
traffic-shaping" command
CBS= Fair queuing on the main interface and only FIFO in classes for the
service-policy applied to sub-interfaces. Must disable "frame-relay
traffic-shaping" command
Thanks again Brian for the help. I tried watching the QoS last night
but had issueses. Will that be posted soon?
-----Original Message-----
From: Brian McGahan [mailto:bmcgahan@internetworkexpert.com]
Sent: Wednesday, October 10, 2007 9:23 PM
To: Wilson, Ryan # Atlanta; 'Cisco certification'
Subject: RE: QoS CBTS Question
Apply this to the command line and post your results.
Brian McGahan, CCIE #8593 (R&S/SP/Security)
bmcgahan@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987 x 705
Outside US: 775-826-4344 x 705
24/7 Support: http://forum.internetworkexpert.com
Live Chat: http://www.internetworkexpert.com/chat/
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Wilson, Ryan # Atlanta
> Sent: Wednesday, October 10, 2007 6:46 PM
> To: Cisco certification
> Subject: FW: QoS CBTS Question
>
> What happens if I do the below. Does the traffic on the sub-interface
> get processed through the policy-map fair-queue and then again through
> the main interfaces fair-queue? From what I'm seeing, if you perform
> FRST, you must perform the "frame-relay traffic-shaping" command,
which
> in turn removes your queuing strategy from the main interface. If your
> doing CBFRTS or CB Shaping, your not required to do the "frame-relay
> traffic-shaping" command, therefore it doesn't remove the queuing
> strategy from the main interface. So, if doing CBFRTS or CB Shaping,
> should one manually remove fair queue from the main interface to stop
> this fair-queuing sandwich. Please correct me if I'm wrong on any of
> this.
>
>
>
> policy-map test
> class class-default
> fair-queue
>
> int s0
> encap frame-relay
> fair-queue
> !
> int s0.1 p--to-p
> service-policy test
>
>
>
>
> Thanks,
>
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> Brian McGahan
> Sent: Tuesday, October 09, 2007 10:28 PM
> To: Wilson, Ryan # Atlanta; ccielab@groupstudy.com
> Subject: RE: QoS CBTS Question
>
> When a policy-map is applied to the subinterface you are doing
> per-VC queueing. Since a single VC can only be applied to one
interface
> at
> a time (main interface or subinterface) only the policy applied to
that
> VC
> or interface where the VC is assigned applies.
>
>
> HTH,
>
> Brian McGahan, CCIE #8593 (R&S/SP/Security)
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
> 24/7 Support: http://forum.internetworkexpert.com
> Live Chat: http://www.internetworkexpert.com/chat/
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > Wilson, Ryan # Atlanta
> > Sent: Tuesday, October 09, 2007 6:05 PM
> > To: ccielab@groupstudy.com
> > Subject: QoS CBTS Question
> >
> > I have a question in reference to CB shaping on a frame-relay sub
> > interface that I'm finding a little perplexing.
> >
> > What if, you have a service-policy on the sub-interface that has
fair
> > queuing in the default class of the policy-map and fair queuing also
> > running on the main interface? It seems that traffic would be
> subjected
> > to fair queuing in the policy-map then again on the main interface.
Is
> > this true?
> >
> >
> >
> >
> >
> > Ryan
> >
> >
>
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