From: Roger RPF (rpf@bluemail.ch)
Date: Thu Jun 05 2008 - 04:14:41 ART
This is a good explanation from a previous post. Narbik Kocharians gave a
good explanation about shape peak. Do a search in the archive and you will
find the original message:
> > 2008/5/31 Narbik Kocharians <narbikk@gmail.com>:
> >
> > CB-Shaping can be done in two different ways: Shape average and Shape
Peak.
> >
> > Shape average limits the transmission rate to CIR, whereas, with Shape
peak
> > the router can send more traffic than CIR.
> >
> > The formula is:
> >
> > Peak Rate = CIR (1+Be/Bc) and remember by default Be and the Bc are set
to
> > 8k
> >
> > With Shape Peak you are allowed to burst higher than CIR but remember
that
> > the
> > excess traffic has the potential of being dropped if the network is
> > congested.
> > Typically used if the network has more bandwidth available and the app
that
> > is
> > being used can handle packet loss.
regards
Roger
-----Urspr|ngliche Nachricht-----
Von: nobody@groupstudy.com [mailto:nobody@groupstudy.com] Im Auftrag von
Chris Gray
Gesendet: Mittwoch, 4. Juni 2008 13:00
An: ccielab@groupstudy.com
Betreff: Frame Relay Terminology
I see the term Peak Information Rate ( PIR) a lot - Can anyone tell me
what PIR refers to?
Is it the access line or tail clocking rate or something?
I am only familiar with
CIR
Bc
Be
Tc
Min CIR
Thanks in advance
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