From: Rich Collins (nilsi2002@gmail.com)
Date: Wed May 28 2008 - 10:46:06 ART
You have to really define what access rate is and then what is the CIR
provisioned by your carrier. The "cir" in your formula should really be
mincir since you are looking for a value of be.
Access Rate (AR) is 256K
The CIR in the formula should really be mincir
Bc = (64000 *0.125)
Be = (256000-64000) * 0.125
frame-relay bc 8000
frame-relay be 24000
-Rich
On 5/28/08, akyccie <akyccie@gmail.com> wrote:
>
> Question regd the frame relay shaping.
> Maximum throughout given is 256kbps. During congestion your provider will
> mark
> any traffic in excess of 64kbps as discard eligible. Make sure your through
> put changes accordingly based upon BECN's received. Token bucket interval
> is
> 125ms.
>
> Is it the right answer
>
> map-class frame-relay SHAPE
> frame-relay cir 256000
> frame-relay mincir 64000
> frame-relay bc 32000 (Bc = Tc * cir --> 0.125 * 256000 )
> frame-relay be 4000 (air - cir * Tc / 8 Bytes --> 256000 * 0.125 / 8)
> frame-relay adaptive-shaping becn
> !
> int s1/0
> frame-relay traffic-shaping
> frame-relay class SHAPE
>
>
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