[73408] in North American Network Operators' Group
Re: Precise per GB traffic calculations.
daemon@ATHENA.MIT.EDU (Andy Dills)
Sat Aug 21 16:55:26 2004
Date: Sat, 21 Aug 2004 16:54:38 -0400 (EDT)
From: Andy Dills <andy@xecu.net>
To: Drew Weaver <drew.weaver@thenap.com>
Cc: "'nanog@merit.edu'" <nanog@merit.edu>
In-Reply-To: <75634F04BFCFD511BF69009027DC8649ACD4D3@mailman.thenap.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Fri, 20 Aug 2004, Drew Weaver wrote:
> Does anyone know of a solution that offers precise methods of
> tracking bandwidth utilizations at the per Megabyte or Gigabyte level and
> not at the rate of transfer level?
>
>
>
> Some people are asking me if we can bill them in this manner, and I'm
> questioning whether the stats that the switch are giving us are that
> accurate.
Drew,
Your counters probably reset a couple of times during the month, when they
reach some maximum value. Or perhaps because somebody power cycles the
switch.
So, no, it's not a good idea to look at the counter on day 1 and on day 30
and compare them. Check it every 5 minutes and store it in a database.
That way, the same system can do aggregate or 95th percentile, it's all in
the report script you write.
Andy
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Andy Dills
Xecunet, Inc.
www.xecu.net
301-682-9972
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