Hello,
I'm having a weird problem with two servers using Supermicro 9SRH-7TF boards and the onboard Intel X540-AT2 based ports. The ethernet ports come up as 100mbps/full duplex. This is happening with two different Cisco switches, one 2960G and one 7609 with a 48port Gb card. Cabling is Cat6, 15 meters for the 7609 and 3 meters for the 2960G.
The servers are running Debian Wheezy and I've tried the stock Debian 3.2.0 kernel as well as the latest kernel from kernel.org (3.14.15). I've also tried using the latest ixgbe driver from sourceforge to no avail.
I was obviously expecting it to come up at 1gbps. But all ports come up *** 100mbps/fdx.
If I change the advertised modes from the server end to only include 1gbps/fdx the link goes down. Setting "speed 1000" on the Cisco also causes the link to go down.
Anyone seen something like this?
Regards,
Fredrik Lindgren