Re: Managing Network bandwidth

[Kurt Buff <kurt.buff () gmail com>]

On Wed, Jan 11, 2012 at 08:08, Peter Odigie <peterquid () gmail com> wrote:
> Hi all!
>
> In my organization, we have had to upgrade our internet bandwidth two
> times last year 2011. The same happened the first and second time,
> after upgrading the connection became quite fast but this lasted for
> just a few weeks and it started dragging again! Our thoughts are in
> two main direction.
>
> 1. Maybe the ISP is not telling us the truth, maybe they are not
> really giving us what we are paying for. Is there a way we can
> verify/monitor the bandwidth we are receiving from the ISP? The
> solution can be on either Windows or Linux platform
>
> 2. Maybe with more bandwidth are staffs are downloading more stuffs -
> non office related stuffs. We had a bandwidth manager some time ago
> but I will not like to get that one up again because it was not
> transparent - people had to logon before being able to use the
> internet. I will like one that can seamlessly manage the network
> bandwidth for each person/department without demanding people to
> login. Again, the solution can be on either Windows or Linux platform.
>
> Thanks guys!
>
> Peter

Your first step will be to understand your traffic before you try to
limit its use.

Assuming you have a capable switch to which your router is connected,
you should set up a SPAN/mirror port on it, and start analyzing your
traffic with a tool such as ntop.

ntop prefers to be run on a *nix box, though there is a Windows
version available, and there are other tools, such as etherape,
wireshark, etc., which are more or less suited to this task.

Kurt

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