At 08:34 PM 30/08/2006, Martin Visser wrote:
1. If the servers are near each other, you might want to test with a
direct patch between them. (Gigabit ports are auto-MDIX so
straight-through or cross-over will do)
2. Use netstat -i -c and dstat to give you an idea if losses are due
to CPU, physical errors, etc.
3. I use the "iperf" utility as nice way to generate and measure throughput
4. I really would have second thoughts on using a non-managed switch
(i;m guessing the netgear is). A managed switch will enable you to
see stats about each port and help you to isolate where the problem might be
Don't forget that a GigE NIC in a regular 32-bit PCI slot is
sub-optimal as well, being that the NIC can theoretically shove more
data across the wire than the PCI bus can handle (up to 132Mb/s IIRC)
cheers,
Rob
On 8/29/06, Raphael Kraus
<<mailto:[EMAIL PROTECTED]>[EMAIL PROTECTED]> wrote:
> Also, I've seen problems with the Realteks in 2.6.9 kernels, that
seemed to go away with later 2.6 kernels (around 2.6.13, from memory).
> Given the debian box is 2.6.8, that might be an issue, so you might
want to try a later kernel.
That may be a good point, however as the machine is off-site, rather
critical, uses some compiled software and eth0 is less important (i.e.
it's our internal network - I'm more worried about large backups not
taking forever to transfer), I'm not too keen to upgrade the kernel just
at the moment :^/
I'll discuss this with my colleage and we'll see if we can organise to
give it a crack...
Thanks heaps for all your help!
Regards,
Raphael Kraus
Software Developer
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Regards, Martin
Martin Visser
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