RE: [como-users] utilization and traffic module

[Iannaccone, G. <gia...@in...>]

I need first a disclaimer: all the modules in the codebase
are meant as examples for users and are used by core developers
to exercise specific portions of the code.=20
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Said that, the different between utilization and counter is the
following:=20
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 . counter reports the number of bytes and packet over each
   measurement interval (the interval is an argument in the config
file).=20
   this is the simplest module one could write and it is there really
for=20
   people to familiarize with some callbacks.=20
=20
 . utilization reports the number of bytes over a measurement interval
(1sec)
   plus the high watermark over a shorter measurement interval (e.g.,
100ms).=20
   that means the highest number of bytes sent over each 100ms interval=20
   during the 1sec. that code is just meant to exercise the export()
callback=20
   (no need to do that but it is like that for legacy reasons).=20
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none of the modules differentiate between hosts or links.
that is done at the filter (in the configuration) where one can limit
the=20
count to specific hosts, port numbers, etc.=20
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hope this helps.
=20
cheers,
gianluca
=20
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________________________________

	From: com...@li...
[mailto:com...@li...] On Behalf Of Dhruv Gupta
	Sent: 12 April 2006 20:11
	To: com...@li...
	Subject: [como-users] utilization and traffic module
=09
=09

	Hi

	=20

	I wanted to know what is the difference between the traffic and
the utilization module. Both seem to be returning the amount of data
passing through the interface in a given time period.

	Also, am I correct in saying that utilization module counts the
number of bits/packets passing through the interface, whether the packet
is intended for that host or some other host.

	=20

	Dhruv

	=20

	Dhruv Gupta=20
	Graduate Group in Computer Science=20
	University of California, Davis=20
	 =20
	"Life is not about waiting for the storm to pass. Its about
dancing in the rain..."=20

	=20