From: paul cosgrove (paul.cosgrove@gmail.com)
Date: Sun Nov 30 2008 - 21:47:25 ARST
Hi Scott,
The link mentions that "During congestion conditions, a priority class
cannot use any excess bandwidth". Perhaps that is what you are thinking of.
However, if I remember right (and I may not) the inbuilt policer affects
process switched traffic all the time, but fast/cef switched transit traffic
is only limited if there is interface congestion. So you may see different
results if you test with locally generated traffic or transit traffic unless
you disable cef & fast switching.
Paul.
On Sun, Nov 30, 2008 at 11:04 PM, Scott M Vermillion <
scott_ccie_list@it-ag.com> wrote:
> Hi Anthony,
>
> Isn't there a particular scenario when the policer would be active and one
> when it wouldn't be?
>
> Thanks,
>
> Scott
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
> Anthony Sequeira
> Sent: Sunday, November 30, 2008 12:25 PM
> To: shank shank
> Cc: CCIE Group
> Subject: Re: Priority command
>
> Yes - the priority command is used with Low Latency Queuing (LLQ) and
> it specifies the amount of priority bandwidth to provide to a type of
> traffic (typically Voice). This command also causes a POLICING to the
> amount of bandwidth specified.
>
> This is a mechanism to guard against queue starvation for other
> traffic forms.
>
> Anthony J. Sequeira, CCIE #15626, CCSI #23251
> Senior CCIE Instructor
>
> asequeira@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Outside US: 775-826-4344
>
> On Nov 30, 2008, at 1:33 PM, shank shank wrote:
>
> > hello,
> > quick question experts: does the priority command apply a
> > maximum limit when specifying a bandwidth? or is it applying the
> > minimum bandwidth certain class can get in the policy?
> >
> > so does this command priority 100 means that the maximum bandwidth
> > the class will get is 100k?
> >
> >
> > according to this link
> http://www.ciscosystems.com/application/pdf/paws/10100/priorityvsbw.pdf
> > it does both. can anyone clarify this to me. thanks,
> >
> >
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