Re: Question on FR CBWFQ

From: Cristian Henry H (chenry@reuna.cl)
Date: Wed Nov 13 2002 - 08:48:37 GMT-3

It looks like FRTS with CBWFQ to control the output packets, using the
map-class "mclass-ypa" to define the frame-relay traffic shaping profile
and the policy-map "fr-out-policy" to CBWFQ inside the frame-relay
shaping profile. I'm no sure if is posible to config FRTS/CBWFQ,
however, your definition of CBWFQ profile include another CBWFQ profile,
the policy-map "class-d-policy". Now it looks like FRTS/CBWFQ/CBWFQ
shaping model, I think that could'nt works, but I'm not sure. Does it
have sense to try somethink like FRTS/PQ?

Robert Rech wrote:
>
> It is CBWFQ if the map-class uses a service policy that is class based as in
> the original thread, my question was 2 things.
> 1.) I understand that putting the map class on the interface applies to all
> DLCI's and putting it under the Frame-relay interface-dlci applies it to
> just that DLCI. But I was asking what if any is the difference in
> configuring the frame class under a sub-interface as opposed to under the
> interface dlci is?
>
> 2.) The goal is to us FRTS and configure a queueing mechanism and policer to
> do the the following on a link carrying both critical traffic from a hosting
> center to a customer as well as their less important and internet traffic
> A.) Assign different queueing wieghts to different classes of traffic
> from the hosting center to the customer across the FR link and guarentee a
> minimum bandwidth to the two most important classes{p5-class and p3-class},
> assign a higher precedence to other hosting traffic {p1-class}, Then use the
> class-default for other traffic including internet.
> B.) Rate-limit internet ftp-data.
>
> Questions on this are what is the effect of the policy map configured to
> police the ftp-data {class-d-policy}being used within the class-default of
> the policy-map fr-out-policy. And would using a rate-limit on the serial
> interface for ftp-data be a better way to go. although it might rate-limit
> all FTP traffic including traffic matching other classes.
>
> class-map match-all p3-class
> match access-group name p3-acl
> class-map match-all p1-class
> match access-group name p1-acl
> class-map match-all p5-class
> match access-group name p5-acl
> class-map match-all ftp-class
> match access-group name ftp-data
> !
> !
> policy-map class-d-policy
> class ftp-class
> police 32000 2000 4000 conform-action transmit exceed-action drop
> policy-map fr-out-policy
> class p5-class
> bandwidth 64
> random-detect
> set ip precedence 5
> class p3-class
> bandwidth 16
> set ip precedence 3
> class p1-class
> set ip precedence 1
> class class-default
> fair-queue
> random-detect
> service-policy class-d-policy
>
> interface Serial0/0.1 point-to-point
> ip address 65.212.24.146 255.255.255.252
> frame-relay class mclass-ypa
> frame-relay interface-dlci 301
>
> map-class frame-relay mclass-ypa
> no frame-relay adaptive-shaping
> frame-relay cir 128000
> frame-relay bc 16000
> frame-relay mincir 100000
> service-policy output fr-out-policy
> !
> ----- Original Message -----
> From: "Cristian Henry H" <chenry@reuna.cl>
> Cc: <ccielab@groupstudy.com>
> Sent: Tuesday, November 12, 2002 5:06 AM
> Subject: Re: Question on FR CBWFQ
>
> > I have a confusion, I think:
> > - class-map is applied with CBWFQ in order to define a the traffic to
> > put in WFQ class-based.
> > - map-class is applied with FRTS in order to define a the traffic to put
> > in PQ, CQ or WFQ
> >
> > So, the example presented here is an FRTS's example, isn't an CBWFQ
> > one. isn't it?, any input?
> >
> > "Erick B." wrote:
> > >
> > > Hi Bob,
> > >
> > > For #1
> > >
> > > Applying it to subinterface means the class is applied
> > > to all DLCIs. If this were a multipoint interface with
> > > multiple DLCIs all DLCIs would have this same class
> > > defined.
> > >
> > > Applying class to the dlci just applies it to that
> > > dlci as you would expect - this way you can assign
> > > different classes to each DLCI on the same multipoint
> > > subinterface for example.
> > >
> > > --- Bob Rech <brech@kc.rr.com> wrote:
> > > > 1.) What is the difference between applying a frame
> > > > relay map-class under the
> > > > sub-interface as opposed to under the dlci?
> > > > R1(config-subif)#int s0/0.1
> > > > R1(config-subif)#frame interface
> > > > R1(config-subif)#frame interface-dlci 16
> > > > R1(config-fr-dlci)#class mclass-ypa
> > > > R1(config-fr-dlci)#
> > > >
> > > > or
> > > >
> > > > R1(config-subif)#int s0/0.1
> > > > R1(config-subif)#frame class
> > > > R1(config-subif)#frame class mclass-ypa
> > >
> > >
> > > =====
> > > "Many of life's failures are people who
> > > did not realize how close they were to
> > > success when they gave up."
> > > - Thomas A. Edison
> > >
> > > __________________________________________________
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> >
> > --
> > Cristian E. Henry
> > REUNA
> >
> > E-mail: chenry@reuna.cl
> > Fono: 56-2-3370336 

-- 
Cristian E. Henry
REUNA

E-mail: chenry@reuna.cl
Fono: 56-2-3370336

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