Change Ethernet card speed 1

[redwings]

Currently my Ethernet cards are set to Auto_Negotiate and I would like to switch them to 100_Full_Duplex but everytime I try to change them it says they are busy. What is the correct way to change this in AIX 5.1?

 

[Chapter11]

If it's the same as in 4.3, you'll have to ifconfig down detach the en? (or et?) device, rmdev -l it, then make the changes to the ent? device, then rebuild your interface.

 

[we2aresame]

Or, you can:
smitty chgent, then make the change to DATABASE only.

 

[redwings]

To rebuild the interface, what do you mean by that?

 

[unixfreak]

You only need to 'ifconfig en0 detach'
then 'chattr -El ent0 -a media_speed=100_Full_Duplex'

I have an additional question though:

After detaching the settings are gone. Is there a way of restoring them without doing a complete mktcpip with all the information again?

Cheers

 

[Chapter11]

unixfreak, I've noticed the same, never found the answer (if there is one) to that issue. I do it so rarely though that I don't mind using smitty to do it.

 

[ogniemi]

all you are asking about is described here:

http://www-1.ibm.com/support/docvie...g1pTechnote0814&loc=en_US&cs=utf-8&lang=en+en

/usr/sbin/ifconfig en1 down detach
/usr/sbin/ifconfig et1 down detach
/usr/sbin/chdev -l ent1 -a media_speed=100_Full_Duplex
/usr/sbin/chdev -l en1 -a state=up
/usr/sbin/mkdev -l inet0