The issue is well described here: http://lkml.org/lkml/2007/7/2/52 For the last two minutes I've got this: eth0: link up. eth0: link down. eth0: link up. eth0: link down. eth0: link up. eth0: link down. eth0: link up. eth0: link down. eth0: link up. eth0: link down. eth0: link up. eth0: link down. eth0: link up. It's very irritating. If I connect the same cable into Intel Pro 100 Mbit NIC then there are no disconnects. # ethtool eth0 Settings for eth0: Supported ports: [ MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Full Port: MII PHYAD: 1 Transceiver: external Auto-negotiation: on Supports Wake-on: g Wake-on: d Link detected: yes
lspci | grep -i eth 00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)
http://ubuntuforums.org/showthread.php?t=598346 http://ubuntuforums.org/showthread.php?t=268816 http://forum.soft32.com/linux/Forcedeth-Nvidia-NIC-ftopict346560.html
Closing for a while since I have primarily switched to a different NIC.
Also this bug seems like a duplicate of bug 8354.