On Wed, 2004-07-28 at 14:13, Christopher A. Smith wrote: > > > > I would start by verifying the duplex settings on the NIC in the FC1 box > > and the port on the switch. mii-tool should let you check the setting > > and force it. 100Mbp connections should be set to full duplex. > > > > I have seen some cisco switches that fight with some systems (in my > > experience SUN servers had this problem). The auto-negotiate would not > > work as expected for some reason. Lock down the speed and duplex > > settings on the switch and the NIC to eliminate this as a possible > > problem. > > Yep, that was the problem. The NIC was in half-duplex and is much happier > in full-duplex. > > I didn't even think of that because auto-negotiation has been running fine > here for so long. Oh well. > > Thanks! No problem! Glad it was something simple like that. I spent way to much time the first time I saw this problem. Could not get several SUN servers to run at full speed on the network. Tried all kinds of stuff until I figured out how to look at the duplex options on the SUN interfaces. BTW: are you using Cisco switches? If so what model? I have seen this problem using Cisco 3548 and 2924 switches as well as with a bigger Catalyst switch. At the time I figured it was more of a problem with the SUN servers interface but I am beginning to wonder if auto-negotiation has an intermittent problem on Cisco equipment. -- Scot L. Harris webid@xxxxxxxxxx You don't become a failure until you're satisfied with being one.
