11-30-2010
I fully agree with last hergp comment. Ethernet settings should be set to auto negotiate. This should just work. If it doesn't, have the vendors fix their hardware instead of trying to mess with settings.
This is from experience. I have seen a lot of networking issues in various sites and plenty of them were due to wrong settings, the most common being one side auto-neg while the other one had fixed speed/duplex mode.
This is somewhat similar to IP settings. If you have a correctly configured dhcp server, things usually work fine. If you have fixed addresses and let people setting them, you quickly end up with duplicate IPs, wrong DNS settings, wrong default routers and so on.
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