From: John Neiberger (neiby@xxxxxxxxxx)
Date: Tue Apr 02 2002 - 23:53:22 GMT-3
I was under the impression that Be only related to excess data
in the first interval. So, if we wanted to burst up to 28000
bps we'd want a Be of 28000, not 3500. If that's not the case
then I need to brush up on FRTS as well. :-) That's at least
the second thing today I've needed to check myself on.
Then again, perhaps Be is specified as a per-interval number,
yet the entire Be amount is only transmitted in the first
interval? Hmm.... Off to CCO I go...
John
---- On Tue, 2 Apr 2002, Bob Sinclair (bsin@erols.com) wrote:
> Guy,
>
> My take on it is: (bc+be) X Tc = max rate
>
> Remember Be is bits per interval.
>
> So Be = (maxrate-cir)/ Tc
>
> Tc here is .125 seconds, 8 intervals per second
>
> Be= (128000 - 100000)/8 or 28000/8 = 3500
>
> To check: (12500 + 3500) X 8 = 16000 X 8 = 128000
>
> In English: Bc and Be are in Bits/interval. Max rate is
(average
> bits/interval plus excess bits/interval) per second. Here,
the interval
> is 1/8 second.
>
> -Bob
>
> ----- Original Message -----
> From: "Lupi, Guy" <Guy.Lupi@eurekaggn.com>
> To: <ccielab@groupstudy.com>
> Sent: Tuesday, April 02, 2002 8:22 PM
> Subject: FRTS
>
>
> > If I want to send traffic at an average rate of 100K, being
able to
> burst to
> > 128K if credit is built up and dropping to a minimum of 56K
during
> > congestion, does this map class look correct? I am trying
to figure
> out if
> > I have this down or not, I am trying to follow the
guidelines I found
> on
> > CCO. Thanks.
> >
> >
> > map-class frame-relay tor1
> > frame-relay cir 100000 (send
traffic at an
> average
> > of 100000)
> > frame-relay bc 12500 (cir/8)
> > frame-relay be in 56000 (added
automatically)
> > frame-relay be out 28000 (burst in
first
> interval)
> > frame-relay mincir 56000 (drop to a minimum of
> > 56K)
> > frame-relay adaptive-shaping becn
> >
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