What does this mii-diag output mean?

Donald Becker becker@scyld.com
Tue Mar 7 22:06:43 2000

On Tue, 7 Mar 2000, Sarah James wrote:

> I'm having a hard time deciphering this output from mii-diag. The numbers
> don't match what is given in
> http://cesdis.gsfc.nasa.gov/linux/diag/mii-status.html
> Here it is:
> Basic registers of MII PHY #1:  3000 782d 02a8 0154 05e1 40a1 0001 0000.
> Basic mode control register 0x3000: Auto-negotiation enabled.
> You have link beat, and everything is working OK.
> Your link partner advertised 40a1: 100baseTx 10baseT.

You have a 10baseT + 100baseT hub, likely a bridged repeater.

> The mode of the network we're connected to is supposed to be a 10MB full
> duplex.

Nope, it's not.

Donald Becker
Scyld Computing Corporation, becker@scyld.com

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