Asus A8V NIC issues

[David Desscan]

Hi Matt

Did you try to measure performance by using other software like sftp, scp?
It seems from your ethtool result that your NIC is OK.  It's reporting the
correct speed and auto-negotiation is on.  However I would have done the
same test with another switch(of course if possible) or another NIC.
Sometimes the problem could be hardware related with the Switch or even the
onboard NIC, patch cords(I am not sure about it but I think that the cables
should be Cat5e).  You should also check the driver for this onboard
NIC. Don't forget you won't obtain exactly the theoretical max.  You should
take into account switch delays, cable loss(This includes insertion loss,
near end crosstalk (NEXT), return loss and equal level far end crosstalk
(ELFEXT), and OS delays(XP authentication is complex).  Windows XP has also
a lot of bugs and might not be fully compatible with samba.  Have a look at
those links:

http://www.linuxforums.org/forum/linux-networking/10333-excessively-slow-network-transfer-speeds-xp-linux.html

http://www.dd.iij4u.or.jp/~okuyamak/Documents/tuning.english.html

Rgds

David




On 7/25/06, Matt <mattjen21 at gmail.com> wrote:
>
> I recently updated my FC5 from an old A7S333 board to and A8V board
> This board now has a 10/100/1000 NIC card on the MB.  I have noticed
> however after upgrading my switch to a 10/1000 D-link, I can not achieve
> 1000Mbit speeds on my network.  I do not see any problems in the log files
> or network configs.  The D-Link indicates that both machines are currently
> 10/1000 connected.  After testing speed by transferring a 6.3GB file
> between both machines, I get following results:
>
> 9min to transfer 6.3GB
> 700MB a minute
> 11.66 MB a second
> 93.333 Mbit/second  ( not anywhere close to 1000 Mbit a sec )
>
> All of this is going through Samba.  If this makes any difference.
>
> I have 2 boxes on this network which are:
> 1: Intel 2.8GHz 800FSB (Asus P4P800-SE) w/ 10/100/1000 nic on MB (Win XP)
> 2GB Ram DDR400
> 2: AMD 3500 Athlon (Asus A8V) w/ 10/100/1000 nic on MB ( Fedora 5 32-bit )
> 1GB Ram DDR400
>
> Can anyone shed any light on the problem?
>
>
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