Re: [IT-SecurityNotifies] SW to monitor band usage

[Steve Suehring <steves AT braingia.org>]

Quick suggestion would be ntop but other people might have other 
suggestions.

Steve

On Thu, Feb 04, 2010 at 09:26:39PM +0100, Leonardo Boselli wrote:
> Problem: i have doubts on the uplink provider.
> my network is often sloooooooow .
> doing ping test gives values high, but not so high to justify
>  the slownes. i tried to upload a file to a server on isp site and a 200  
> MB mpg file was trasferred in 5.2 seconds. the line should be 1GB, and 
> were about 400 users on line, so such score
> should exclude a cable or router fault.
> The technician on the other part of the line  suggest it could be someone 
> doing intensive file transfer, so hogging the line.
> so i want to make this test:
> mirror the upstream port of the main switch to a logging computer, and 
> see if there is someone doing 24/24 file transfer.
> now the question:
> what is the program i have to use ?
> (remember: on that line I should expect a 70% bandwidth usage on a 
> gigabit link)
> What I need would be just log, minute by minute, for each IP pair (in and 
> out) the number of packet and the total qty of data exchanged.
> any quick suggestion ?
>
> --
> Leonardo Boselli
>
>
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