problems with gigabit speeds on dual network card

JD jd1008 at gmail.com
Sun Sep 19 01:20:42 UTC 2010



On 09/18/2010 06:08 PM, Genes MailLists wrote:
>
>   Anyone got any suggestions for this.
>
>   I have a linksys sr2024 Gb switch
>
>   Several things are plugged into this - all using cat 5e or cat 6 cables.
>
>
>   Some things are connecting with full Gb speed but the main firewall wont.
>
>   The machine has 3 intel nic's -
>
>    lspci | egrep -i ethernet
> 04:00.0 Ethernet controller: Intel Corporation 82573L Gigabit Ethernet
> Controller (rev 01)
> 05:04.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet
> Controller (rev 05)
> 05:05.0 Ethernet controller: Intel Corporation 82541PI Gigabit Ethernet
> Controller (rev 05)
>
>   The 82573 is on board and not used - the other 2 nic's are used - one
> for internal subnet and one for external.
>
>   The internet side is connected to a cisco 800 router (which I believe
> is 10/100 only .. tho I cudnt swear for sure)
>
>   The inside is connected to the SR2024 Gb switch.
>
>   Both nic's come up in 100 Mb/s - I rebooted the switch, and I plugged
> and unplugged the cables, I tried ethtool -r ethx a few times to no avail.

Did you try
ethtool    -s  ethX  speed 1000


>   Other machines on same switch are happily running at full gigabit speeds.
>
>   Nothing in logs suggests a problem
>
>   Is there a problem with multi nics of same brand where they need to run
> at diff speeds ? Or is this a quirk with some hardware somewhere ? Or ???
>
>
>   Appreciate any suggesions ... its getting tiring forcing renogiation!
>
>   thanks ...
>
> gene/


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