From: Alex Steer (alex.steer@eison.co.uk)
Date: Fri Aug 03 2007 - 06:55:45 ART
Hi Donghai,
I believe the "increment" field refers to the amount of tokens added to
the shapers per Tc.
I think that the reason this is 2000 is because of the "peak" keyword.
Setting the peak keyword means that the shaper is allowed to transmit
the committed burst / Bc and the excess burst / Be per second regardless
of if there are periods of inactivity on the link or not.
So with a target rate of 6400bits ps Bc + 6400bits ps Be = "128000" bits
ps
And the default Tc of 125m/s
1second/125ms = 16 Tc per second.
Bc + Be = 16000 Bits or /8 2000 BYTES
So 2000 should refer to the number of bytes added to the token bucket
per Tc of 125ms.
I guess it comes down to the whole why on earth would you put bytes and
bits in the same table?
I hope that helps (unless I'm wrong)
Cheers
Alex
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Donghai Zhang
Sent: 03 August 2007 06:16
To: groupstudy
Subject: Incremente's meaning in Qos
Hi.I just met a Qos question.when I show policy-map int s0/0, it display
target rate/average rate max cir bc be increment
128000/64000 2000 64000 8000 8000 2000
the output above was the result of "shape peak "command in the class
map. I
would like to know
why a crement 2000 out there? If I change to "shape average" comand, it
changed to increment as
1000. Why ?
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