Lukas Hejtmanek wrote: > On Tue, Dec 04, 2007 at 11:02:23AM -0500, Matt Mathis wrote: >> This is probably not an e1000 problem, but a general Ethernet "feature". >> If you defeat auto-negotiation to force the data rate, you implicitly >> defeat duplex negotiation as well. You need to explicitly set the duplex >> mode. > > ethtool reports, that I have full duplex line:
Matt was almost right - the link partner however might be working in half duplex mode. in case you force speed/duplex, you are *required* to force the exact same setting on the link partner, otherwise things like this can happen. if you "just" want to disable gigabit speed, get the latest ethtool and run: ethtool -s eth0 advertise 0x0f which keeps autonegotiation enabled but tells the e1000 card to _not_ advertise gigabit speed capability to the link partner. The link partner and the e1000 can then decide with autonegotiation whether to use 10half 10duplex 100half or 100full. Auke -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
