From: Ian Blaney (ian.blaney@gmail.com)
Date: Thu Feb 15 2007 - 05:43:15 ART
To answer the original question
If there is available bandwidth on the interface class2 should be shaped to
64K peak.
would it be
shape peak 64000
or
shape peak 32000
On 2/15/07, Troy Levin <troylevin@hotmail.com> wrote:
>
> The formula to calculate the actual peak rate is:
>
> Peak rate = cir(1+be/bc)
>
>
> So in your case in order to send be+be traffic in one TC the shaper must
> send at the rate of 128k. The rate does become higher than 64k.
>
>
>
> On 2/14/07 4:49 PM, "Ian Blaney" <ian.blaney@gmail.com> wrote:
>
> > Hi GS
> >
> > I am slightly confused about the wording and meaning here.
> >
> > class1 should be shaped to 64K
> > If there is available bandwidth on the interface class2 should be shaped
> to
> > 64K peak.
> >
> > I have configured the following
> >
> > policy-map SHAPE
> > class class1
> > shape average 64000
> > class class2
> > shape peak 64000
> >
> > interface Serial0/0
> > service-policy output SHAPE
> >
> > If I look at the following
> >
> > R1#show policy-map interface s0/0
> > Serial0/0
> >
> > Service-policy output: SHAPE
> >
> > Class-map: class1 (match-all)
> > 0 packets, 0 bytes
> > 5 minute offered rate 0 bps, drop rate 0 bps
> > Match: none
> > Traffic Shaping
> > Target/Average Byte Sustain
> Excess Interval Increment
> > Rate Limit bits/int bits/int (ms) (bytes)
> > 64000/64000 2000 8000 8000 125 1000
> >
> > Adapt Queue Packets Bytes Packets Bytes Shaping
> > Active Depth Delayed Delayed Active
> > - 0 0 0 0 0 no
> >
> > Class-map: class2 (match-all)
> > 0 packets, 0 bytes
> > 5 minute offered rate 0 bps, drop rate 0 bps
> > Match: none
> > Traffic Shaping
> > Target/Average Byte Sustain
> Excess Interval Increment
> > Rate Limit bits/int bits/int (ms) (bytes)
> > 128000/64000 2000 8000 8000 125 2000
> >
> > Adapt Queue Packets Bytes Packets Bytes Shaping
> > Active Depth Delayed Delayed Active
> > - 0 0 0 0 0 no
> >
> >
> > Class2 has the output
> >
> > Target/Average
> > Rate
> > 128000/64000
> >
> > I understand that with shape peak each Tc Bc+Be bits can be sent but I
> am
> > confused with the 128000 under the Target Rate. Does this still meet the
> > specs of the original question "If there is available bandwidth on the
> > interface class2 should be shaped to 64K
> > peak."
> >
> > Thanks
> >
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