bandwidth utilization and growth

I am running 6 Red Hat Linux Servers that are using a Cisco Router.
Only 3 of these servers have any access to the internet. I'm trying
to determine how to measure our average bandwidth usage. My boss is
trying to determine if we triple our users by the end of the year
whether we could handle this.

We have one T1 line. I assumed that on average each computer could on
average transmit at 500kbps with one T1 line, but wasn't sure if I was
figuring this right. This assumes that all 500kbps were all heading
out of the network.

I really am trying to measure our current bandwidth utilization and
how to determine at what point we will need more. Any suggestions on
how to do this exactly?

Peter

> I am running 6 Red Hat Linux Servers that are using a Cisco Router.
> Only 3 of these servers have any access to the internet. I'm trying
> to determine how to measure our average bandwidth usage. My boss is
> trying to determine if we triple our users by the end of the year
> whether we could handle this.
>
> We have one T1 line. I assumed that on average each computer could on
> average transmit at 500kbps with one T1 line, but wasn't sure if I was
> figuring this right. This assumes that all 500kbps were all heading
> out of the network.
>
> I really am trying to measure our current bandwidth utilization and
> how to determine at what point we will need more. Any suggestions on
> how to do this exactly?

Assuming you're wondering how much of the T1 is being used, try "sh
interfaces" on the router, and look into MRTG. If you're trying to track
how much bandwidth each Linux machine uses, http://groups.google.com will
help you find the hundreds of times that question has already been
answered.

steve

> I am running 6 Red Hat Linux Servers that are using a Cisco Router.
> Only 3 of these servers have any access to the internet. I'm trying
> to determine how to measure our average bandwidth usage. My boss is
> trying to determine if we triple our users by the end of the year
> whether we could handle this.

For a simple answer to your question, try the 'netwatch' and 'ipraf'
monitoring programs. I started using them when they arrived in slackware.

--
Jem Berkes
http://www.sysdesign.ca/