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Experimental Physics and
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we have been "playing" with these driver settings a lot. For us, things usually seem to work with both ends (2100 and switch) being on auto-neg. Note that we only found a severe problem when one side is fixed to full-duplex (any speed), and the other side is on auto-neg. In that case, the auto-neg side falls back to half-duplex and auto-sensing. So it will get the speed right, but not the duplex configuration. The full-duplex side, when sending, will always force the half-duplex side into detecting a collision. So far, we have not seen any 2100s getting "stuck" while both sides are on auto-neg. Cheers, Ralph Thompson, David H. wrote: Our dec driver has for some time been afflicted with just going dead for no apparent reason. It is rate but when it happens we end up rebooting the IOC. The driver seems to be trying to auto negotiate and is stuck. Messages show up on the console from CA beacons and clients when the entries in the arp table age out. The mii flags are where we get the idea that it is trying to negotiate, that and the fact that the IOC and the switch port it is connected to are on different speeds.
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ANJ, 10 Nov 2011 |
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