[113918] in North American Network Operators' Group

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Re: MRTG in Fourier Space

daemon@ATHENA.MIT.EDU (Anton Kapela)
Thu Apr 23 18:12:10 2009

In-Reply-To: <2e9d8ae50904231448i7e63be98hbd86e07a63cb06e@mail.gmail.com>
Date: Thu, 23 Apr 2009 15:05:24 -0700
From: Anton Kapela <tkapela@gmail.com>
To: plonka@doit.wisc.edu
Cc: Crist Clark <Crist.Clark@globalstar.com>, Nanog <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

On Thu, Apr 23, 2009 at 2:48 PM, Anton Kapela <tkapela@gmail.com> wrote:

> Indeed, there are. Interesting things emerge in frequency (or phase)
> space - bits/sec, packets/sec, and ave size, etc. - all have new

Forgot to mention one point - since packets/bits/etc data is  more
monotonic than not (math wizards, please debate/chime in) and since
it's not a 'signal' in the continuous sense, you might find value in
differentially filtering the input data *before* FT or wavelet
processing. This would serve to remove the weird-looking "DC" offset
in the output simply by creating a semi-even distribution of both
positive and negative input sample values.

-Tk


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