Re: shaping and sharing on the 3560 interface

From: ccie champ (ccie.champ@gmail.com)
Date: Tue Jun 24 2008 - 23:23:10 ART


Thanks It is a nice explanation!!

On 6/25/08, Narbik Kocharians <narbikk@gmail.com> wrote:
>
> SRR can be configured for Sharing or for Shaping on Egress whereas, Sharing
> is the only solution available on Ingress queues. When configuring the
> Queues for Shaping, you should remember that the configured Queue is
> RATE-LIMITED to the configured amount. This means that even if nothing else
> is going on, you will ONLY get the configured rate and that all.
> When Sharing is configured always think of CBWFQ, which means that the
> minimum amount of bandwidth is what you are configuring, which means that
> if
> nothing else is going on you can use more bandwidth than the configured
> value.
>
> If you have configured "srr-queue bandwidth share 10 10 30 50, then Q1 is
> getting 10 percent, Q2 is also getting 10 percent, Q3 is getting 30 percent
> and the forth Q is getting 50 percent. Which means that Q4 is getting 5
> times the bandwidth of Q1 or Q2.
>
> Always remember that Shape will override the Share.
> I hope that helps.
> On Mon, Jun 23, 2008 at 12:21 AM, ccie <ccie@just-horizon.com> wrote:
>
> > Hi experts,
> >
> > What that exact meaning for such shaping and sharing on a 3560 SSR
> >
> > Shaped queue weights (absolute) : 40 30 20 10
> >
> > Shared queue weights : 10 20 30 40
> >
> > Regards,
> >
> > Amin
> >
> >
> > _______________________________________________________________________
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> >
> >
> >
> >
>
>
> --
> Narbik Kocharians
> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> www.Net-Workbooks.com
> Sr. Technical Instructor
>
>
> _______________________________________________________________________
> Subscription information may be found at:
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