From: Brian McGahan (bmcgahan@internetworkexpert.com)
Date: Tue Jan 31 2006 - 18:20:36 GMT-3
Your order of operations are incorrect. The formula should be Bc = CIR
* Tc/1000 and Be = (AR-CIR) * Tc/1000
HTH,
Brian McGahan, CCIE #8593
bmcgahan@internetworkexpert.com
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> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
> xprtofnet
> Sent: Tuesday, January 31, 2006 12:15 PM
> To: ccielab@groupstudy.com
> Cc: xprtofnet@yahoo.com
> Subject: IE lab 9 / lab 11 -----Task-8 [ Be calc ? ]
>
> Hello,
>
> I am going thru the QoS excercises and am kind a
> confused on task 8.3 of Lab 9. I think the lab 11 task
> 8.2 is similar to this one but the answers are
> different based on the formula/calculation:
>
> e.g. in task 8.3 of lab 9 the formula used do
> calculate Be is i believe the following:
> Be= Tc x AR - CiR [so we do Tc x AR first and then
> subtract it with Cir]. This give the right answer
> according to the solution which is 80000
>
> Doing similar calculation for lab 11 the answer does
> not correspond to the solution unless you do the
> following:
> Be= Tc x (AR-Cir) [do the subtraction first and then
> the multiplication]
>
> I do not see the difference of requirement in the two
> labs or am i missing any thing ?
> Is there an an error in the solution of lab 9 task 8.3
> but there is a post by Brian verifying the
> calculation.
>
> Can some one shed some light on this please...is Be
> calculation in lab 9 correct by doing Be= Tc x AR -
> CiR [so we do Tc x AR first and then subtract it with
> Cir] ?
>
> Thank You,
>
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