[nylug-talk] Looking to analyze the characteristics of my network

[Thomas P Brisco]

    Take a look at stuff like iperf and nuttcp (tools I use at work) for
testing
the network; something like FTP doesn't tell you much - ack/nack with
fixed packet sizes only lets you know one characteristic of the network,
and probably won't be able to test the higher end performance.  iperf
will run multiple tcp (or udp) connections to help you tell the difference
between poorly performing applications and poorly performing networks.

- Tom

----- Original Message ----- 
From: "Michael B Allen" <mba2000 at ioplex.com>
To: "NYLUG Technical Discussion" <nylug-talk at nylug.org>
Sent: Thursday, September 14, 2006 2:38 PM
Subject: Re: [nylug-talk] Looking to analyze the characteristics of my
network


Just take two machines that you think should perform at Gigabit speeds and
connected them directly to one another. Then try some tests with FTP and
look at the rate (or use nc and compute the rate). If it's low then check
each NIC. Make sure it's MTU is right, that both NICs are full-duplex,
the drivers don't require special options, etc. Once you get two machines
tweeked the rest should be obvious.

Mike

On Thu, 14 Sep 2006 11:19:58 -0700 (PDT)
Jim McBride <jgmcbride at yahoo.com> wrote:

> Got a network with gig everywhere. Gig switches, NIC cards and CAT6E
cabling.
> Network doesn___t seem to be all that fast. Did a lot of research on the
Web looking for tools (inexpensive) that will enable me to see how the
network is behaving, throughput, latency etc.
>
> Any direction would be greatly appreciated.
>
>
> Thanks
>
>
> Jim
>
>
>
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-- 
Michael B Allen
PHP Active Directory SSO
http://www.ioplex.com/
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