Gigabit network slower than expected....

[jim]

I bought a Linksys WRT310N wireless N Gigabit router, 2 Linksys Gigabit 5
port switches, 1 Linksys 8 port Gigabit switch, 2 PCMIA to Ethernet Gigabit
ethernet cards by Belkin and 3 internal el cheapo 1 Gigabit full duplex
athernet cards and replaced all of my 10/100 stuff on my small network.

After getting everything set up, I expected throughput (copying a file)
speeds to be around 60MB/s...but (using Racoonworks free speed tester from )
I am getting readings of 7.5MB/s.

What could be causing such a slow response in copying a file on my new
Gigabit network?

I made sure that nothing was running on either system and no major network
traffic was happeing that I am aware of.

Thanks for your help!

jim

 

[jim]

Are the copies "local" (same network), not from a wireless to a wired
host, and between alike operating systems? Wireless signal degradation
could be it, lousy network card / driver performance, and finally TCP/IP
misbehaving between your machines, even a bad cable.

Both XP Pro PCs are wired to the same network (just a few of XP machines in
the same workgroup). There is no real server on this network.

If these are Windows machines that are under your administrative control,
etc. and aren't Vista or W2K3, you may be able to tweak a parameter in the
registry that enables something called RFC1323 TCP Window Scaling. I'll
spare the long technical explanation, suffice to say it will allow your
machines to talk to other hosts more efficiently by reducing the number of
TCP ACKs required to send large quantities of data.

I'll test this tonite and let you know what happened.

Thanks!

jim