From: Guoqi Cui (guoqicui@xxxxxxxxx)
Date: Mon Jul 15 2002 - 13:49:00 GMT-3
The FRTS parameters are quite confusing.
CIR, MINCIR is in unit of bps
BC, BE is in unit of bits
If BE is set as: port_speed minus-cir
it will hava a unit of bps,
Do Tc is assumed to be 1 sec?
For this case( Tc=0.125 sec),
BE should be set as 32000/8=4000.
--- 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?
>
> -----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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