Re: Tc

From: Chris Lewis (chrlewiscsco@gmail.com)
Date: Thu Jun 22 2006 - 16:51:37 ART


I see, so that makes sense from an MQC perspective, as shown by the output,
the default is to allow a burst of 200 msec to allow the algorithm to reach
target rate.

Chris

On 6/22/06, Petr Lapukhov <petr@internetworkexpert.com> wrote:
>
> Chris,
>
> I guess Sami actually mentions commited burst size with MQC,
> which is 200ms*Bitrate by default, AFAIR :)
>
> 2006/6/22, Chris Lewis <chrlewiscsco@gmail.com>:
>
> > Sami,
> >
> > Could you explain what you mean by Tc in relation to applying the
> > bandwidth
> > command and how you arrive at the 200ms figure?
> >
> > Chris
> >
> >
> > On 6/22/06, Sami < sy1977@gmail.com > wrote:
> > >
> > > Group,
> > >
> > > What is default Tc for a ethenet interface ? I configured a policy and
> > > used
> > > 50% bandwidth , by caluclation it looks like default tc is 200 ms ? Is
> > > that
> > > correct ?
> > >
> > > R4#show policy-map interface fastEthernet 0/0
> > > FastEthernet0/0
> > >
> > > Service-policy output: Pri
> > >
> > > Class-map: IT (match-all)
> > > 0 packets, 0 bytes
> > > 5 minute offered rate 0 bps, drop rate 0 bps
> > > Match: access-group 81
> > > Queueing
> > > Strict Priority
> > > Output Queue: Conversation 264
> > > Bandwidth 50 (%)
> > > * Bandwidth 50000 (kbps) Burst 1250000 (Bytes)
> > > * (pkts matched/bytes matched) 0/0
> > > (total drops/bytes drops) 0/0
> > >
> > > Class-map: class-default (match-any)
> > > 15 packets, 1849 bytes
> > > 5 minute offered rate 0 bps, drop rate 0 bps
> > > Match: any
> > >
> > > Thanks
> > >
> > >
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>
> --
> Petr Lapukhov, CCIE #16379
> petr@internetworkexpert.com
>
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