RE: Frame-relay Traffic Shaping **

From: Senthil Kumar (senthil.kumar@intechnology.co.uk)
Date: Thu Nov 07 2002 - 15:07:09 GMT-3


here is my share.

on any interface you can limit the outgoing traffic rate using traffic
shapping(uses buffer)/ traffic policing (no buffer, supports bursts)

right, for you to do this you need to know

cir - commited information rate, look into the service contract doc and
you'd know what you've paid for..

general algorith for bc= cir * 1.5 for data, or cir/100 for voice

genreal algoirthm for be = 2 x bc for data, or 0 for voice.

make mincir= cir, which lets you reserve 100% bandwidth.

on atm you can use max reserve bandwidth which is like mincir..

now you tell the interface how much can go.

but to limit how less can it be - use bandwidth/policy if cbwfq/llq is
used. or implement wfq and use wred for precedence based scheduling.

hope this helps.

thanks, senthil

-----Original Message-----
From: KHAN, IFTIKHAR A [mailto:IKHAN@scana.com]
Sent: 07 November 2002 15:59
To: 'ccielab@groupstudy.com'
Subject: Frame-relay Traffic Shaping

I was looking for some good explanation of FR traffic shaping about all
variables

Be
Bc
CIR
MinCir
Tc

I read some thing about it but still confused is there any good document
available which explains all and what are different impacts of one variable
on other.

Thanks

> Iftikhar Khan



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