From: ccie2be (ccie2be@nyc.rr.com)
Date: Thu Jun 10 2004 - 11:49:51 GMT-3
Hi Brian,
Shouldn't class B and C use the bandwidth command, not the priority command?
I thought there can be only one priority class.
----- Original Message -----
From: "Brian McGahan" <bmcgahan@internetworkexpert.com>
To: <roih@012.net.il>; <ccielab@groupstudy.com>
Sent: Thursday, June 10, 2004 10:17 AM
Subject: RE: CBWFQ in the real life
> Roi,
>
> Configure the voice traffic in the low latency queue (priority
> statement under the class), and do a bandwidth reservation for classes B
> and C. Put this class inside another nested policy that shapes out to
> 2Mbps.
>
> Example:
>
> policy-map RESERVE
> class A
> priority 500
> class B
> priority 500
> class C
> priority 1000
>
> policy-map SHAPE
> class class-default
> shape average 2000000
> service-policy RESERVE
>
>
> The above configuration gives 500Kbps of low latency to class A,
> and guarantees at least 500Kbps and 1000Kbps for class B and class C
> respectively in the case of congestion. The congestion condition is
> bound by the outer service policy, which is shaping the aggregate of all
> classes in RESERVE to 2Mbps. In the case of the absence of traffic for
> a particular class, one or more of the other classes may use the
> bandwidth allocated to the missing class.
>
> HTH,
>
> Brian McGahan, CCIE #8593
> bmcgahan@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987 x 705
> Outside US: 775-826-4344 x 705
>
>
> > -----Original Message-----
> > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
> Of
> > roih@012.net.il
> > Sent: Thursday, June 10, 2004 5:28 AM
> > To: ccielab@groupstudy.com
> > Subject: CBWFQ in the real life
> >
> > hi group.
> >
> > I need help in CBWFQ case in the real world.
> > here it goes:
> >
> >
> > 3 classes A,B,C the first is voice.
> >
> > I have fast Ethernet interface and I need the limit it to 2M
> (that's
> > what
> > the
> > customer wants to pay).
> > in 2M I have the police the traffic the A and B will get
> > 0.5M each and C the other 1M.
> > Now for the problem: I want to be able the allocate the BW of class A
> if
> > no
> > packets of voice are arriving and use it
> > in class B, the same case from B to C.
> > So, my config file have to give me the option to use the entire BW
> even if
> > A
> > and B are empty. I've tried it in few ways (also with the new
> feature
> > "two-
> > rate
> > policer" but no success.
> > The BW remaining commands cant help here because it define the way the
> > Allocate the left BW after the classes used the BW. My challenge is to
> > "leak"
> > BW from class to class and not from the remaining "bank" to the
> classes
> >
> >
> > Experts, Any idea??
> >
> > p.s the version can be 12.3...
> >
> > Roi
> >
> >
> _______________________________________________________________________
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