Cat 6 cables have far better noise rejection properties. It's not a myth.

Cat 5/5e cables will work on short runs, but you will get performance
problems as you stretch out the run.



You've got to have tighter twists.



Nigel Weeks

Tech Support and Systems Developer

Rural Press Tasmania

The Examiner Newspaper

Ph. 03 6336 7234

Mob. 0408 133 738

Email. <mailto:nweeks@...> nweeks@...

_____

From: firebird-support@yahoogroups.com
[mailto:firebird-support@yahoogroups.com] On Behalf Of Michael Weissenbacher
Sent: Wednesday, 21 March 2007 9:13 AM
To: firebird-support@yahoogroups.com
Subject: Re: [firebird-support] Re: Firebird slower on a 1000 mbps gigabit
network

>
> I'll second this.
> It sounds a lot like the Gbps NICS are spending all day re-transmitting

lost

> packets through under-spec'd cables.
>

To my experience "under-spec'd cables" is a more a myth than reality.
Usually it's crappy NIC's / crappy switches / crappy drivers. Of course
not a firebird problem at all.

Have you tried using something like iperf[1] to measure the network
performance under load?

[1] http://www.noc <http://www.noc.ucf.edu/Tools/Iperf/default.htm>
ucf.edu/Tools/Iperf/default.htm

Michael



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