Saturday, June 23, 2007

Full Duplex Settings for Network Interface

The other day I was having problems auto negotiating duplex settings between a remote switch and my workstation. Initially, the ndd command was used to set up the 100Mb interface in full duplex mode. But later, the /etc/system file was modified to make the settings permanent following a reboot.

Determine status
# netstat -k hme0 | grep link

# ndd -set /dev/hme adv_autoneg_cap 0
# ndd -set /dev/hme adv_100hdx_cap 0
# ndd -set /dev/hme adv_100fdx_cap 1

# vi /etc/system
#set hme:hme_adv_autoneg_cap=0
#set hme:hme_adv_100hdx_cap=0
#set hme:hme_adv_100fdx_cap=1
:wq!

2 comments:

Mads said...

With Solaris 10 and later, I'd really recommend looking at dladm instead.

# dladm show-dev

nge0 link: up speed: 100Mb duplex: full

esofthub said...

Unfortunately, I'm still working with Solaris 8, but I'm glad you made a comment about Solaris 10. Thanks mads.