Solaris i386 nge e1000 network settings

Look status
# dladm show-dev
nge0 link: up speed: 1000 Mbps duplex: full

Set duplex speed,

ndd -set /dev/nge0 adv_1000fdx_cap 1
ndd -set /dev/nge0 adv_100fdx_cap 0
ndd -set /dev/nge0 adv_100hdx_cap 0
ndd -set /dev/nge0 adv_autoneg_cap 0
1 enable related settings and 0 disable. These commands enable 1000 Full duplex.