>-----Original Message----- >From: Tom Walsh [mailto:expressweb...@gmail.com] >Sent: Sunday, August 30, 2015 6:16 PM >To: e1000-devel@lists.sourceforge.net >Subject: [E1000-devel] ixgbe X557-AT2 Auto-Negotiation Problem > >We have a new motherboard from SuperMicro X10SDV-TLN4F that uses the Xeon >D-1540 (SoC) and the Intel X557-AT2. We are running Ubuntu 14.04 LTS with >3.19 kernel and the latest stable version of ixgbe (4.1.2). The server is >connected to a QuantaMesh T3048-LY9 (48 port 10G-Base-T) running >CumulusLinux (2.5.3). > >We can get the devices to show up in ifconfig, and we can configure them no >problem. They work, but will not connect to our switch faster than 1Gbps. > >Normally we would just set the speed manually using ethtool, but that >doesn't seem to be working, and I am not sure why. > >When we try to manually set the speed, duplex and autoneg; we get the >following: > >ethtool -s eth0 speed 10000 duplex full autoneg off >Cannot set new settings: Invalid argument > not setting speed > not setting duplex > not setting autoneg
To limit the advertised speed via ethtool to 10Gbps use the following: #ethtool -s eth0 advertise 0x1000 You can also see the list of supported and advertised modes: #ethtool eth0 Thanks, Emil ------------------------------------------------------------------------------ _______________________________________________ E1000-devel mailing list E1000-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/e1000-devel To learn more about Intel® Ethernet, visit http://communities.intel.com/community/wired
