From: Lab Candidate (labccie@xxxxxxxxx)
Date: Sun Jul 14 2002 - 18:03:39 GMT-3
Mamoor and Bruce,
If you multiply the available bandwidth 32000 pbs with the Tc value 0.125, you
are not sending the
data at the full speed that your access line and ISP allow, remember I said if
you want to fully
utilize the access line bandwidth, then you should not take Tc into account whe
n calculating Be
value, which is the way I said below.
Mamoor, there's still nothing wrong with the CCO example you quoted, I take it
as a personal
choice. You definitely could make it work using CCO's formular.
HTH.
--- Bruce Williams <bruce@williamsnetworking.com> wrote:
> If the available bandwidth is 32000, then dont we still need to multiply it
> by .0125 to get the bits per Tc?
>
--- Ahmed Mamoor Amimi <mamoor@ieee.org> wrote:
> really !! if this is obvious...
> Then can u explain this :
> http://www.cisco.com/warp/public/125/traffic_shaping_6151.html
>
> AR = 192000
> map-class frame-relay cisco
> frame-relay cir 64000
> frame-relay mincir 32000
> frame-relay adaptive-shaping becn
> frame-relay bc 8000
> frame-relay be 16000
>
> see that Be = (AR-CIR) * 0.125 = (192000 - 64000) * 0.125 = 16000
>
> comments are needed .... please !!
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Lab Candidate
> Sent: Sunday, July 14, 2002 1:03 AM
> To: Ahmed Mamoor Amimi
> Cc: ccielab@groupstudy.com
> Subject: Re: FRTS want to nail it down !!
>
>
> Mamoor,
>
> This is obvious, since you said the port speed is 64000 and cir is 32000,
> if you want to utilized the most of your available bandwidth for burst
> purpose, the be would be equal to port_speed minus cir, hence 32000 bps.
>
>
>
> I was reading the power-session 2002, here on page 66 they have given the
> values like :
>
> Port Speed: 64000 Bps
> CIR : 32000 Bps (Average Rate of Traffic Without Congestion)
> Mincir: 16000 Bps (Average Rate of Traffic With Congestion)
> Bc: 4000 Bps (Amount of Data Sent Per Interval)
> Be: 32000 Bps (Amount of Excess Allowed Once Credit Has Built Up)
>
> interface Serial0
> ip address 10.10.10.1 255.255.255.0
> encapsulation frame-relay
> frame-relay traffic-shaping
> frame-relay class ccie
>
> map-class frame-relay ccie
> frame-relay adaptive-shaping becn
> frame-relay cir 32000
> frame-relay mincir 16000
> frame-relay bc 4000
> frame-relay be 32000
>
> Can someone explain why Be = 32000 , why not Be = 32000 * 0.125 = 4000
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