From: Germany (ccie.gergonza@gmail.com)
Date: Tue Jan 08 2008 - 02:10:25 ARST
Hi guys, any particular reason why you would be marking mincir at 48000?
I agree for the rest ...
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Joseph Saad
Sent: Sunday, January 06, 2008 10:14 PM
To: Mark Turner
Cc: ccielab@groupstudy.com
Subject: Re: Frame Relay Traffic Shaping clarification
This is how I interpreted your question.
AR = 128000 (Maximum throughput is at clock rate) above CIR, you start mark
traffic as DE.
Your CIR is 48000 bps
Your minCIR is also 48000 bps
bc = 1/8 * 48000 = 6000 bit
be = 1/8 * (128000 - 48000) = 10000 bit
On Jan 7, 2008 5:25 AM, Mark Turner <markturner101@gmail.com> wrote:
> Hello,
>
> I am working through the below question and I am unsure about how to
> interpret one aspect. When it says "maximum throughput is 128kbps"
> would configuring the cir of 128k satisfy the requirement? Also I am
> unsure if i should include a Be value.
>
> "Configure the r3 frame-relay interface for rate limiting by
> configuring the parameters cir, bc, mincir
> - Maximum throughput is 128kbps
> - During congestion, your provider will mark any traffic in excess of
> 48kps as de
> - Adapt to becns only
> - Your token buck interval is 125ms
> - Use a map-class to apply this feature to all pvcs"
>
> My understanding of how to derive the be value is Be = (ar cir) * tc
> 12800 48000 = 80000 = 10000 Be in this case. However the question
> doesn't explicitly ask for it, should i include it anyway?. Would just
> setting the cir to 128k and the bc to 16k be valid in your opinion?
>
> My solution ->
> !
> map-class frame FRTS
> frame-relay adaptive-shaping becn
> frame-relay cir 128000
> frame-relay min-cir 48000
> frame-relay bc 16000
> !
> int s0/0
> frame-relay traffic-shaping
> frame-relay class FRTS
>
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