Rick Jones wrote:
With mii-tool we can do the command below and work with a half duplex
hub and a full duplex switch.
mii-tool -A 10baseT-FD,10baseT-HD eth0
Why, and how often, is that really necessary?
This is a bit of a hypothetical discussion of course, but I can imagine a lot
of users with 100mbit switches in their homes (imagine all the DSL/cable
routers out there...) that want to stop their nic from attempting to negotiate
1000mbit.
Another scenario: forcing the NIC to negotiate only full-duplex speeds. Not
only fun if you try it against a hub, but possibly useful.
For us it's much more interesting because we try every damn impossible
configuration anyway and see what gives (or breaks).
Anyway, a patch to make ethtool do this was merged as Jeff Kirsher pointed out,
so you can do this now with ethool too.
Cheers,
Auke
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