I am new to Solaris and have been searching around for this answer and I think I figured it out but I wanted to run it by you folks. I was trying to figure out if the network on this Solaris 10 machine was set up for 100 Full Duplex. I think from this output that it is 100 full duplex, am I correct? Thanks in advance.

(solaris02-root: /dev:144)-> prtconf -D |grep network
network, instance #0 (driver name: ce)
network, instance #1 (driver name: ce)

(solaris02-root: /dev:146)-> ndd -get /dev/ce \?
? (read only)
instance (read and write)
adv_autoneg_cap (read and write)
adv_1000fdx_cap (read and write)
adv_1000hdx_cap (read and write)
adv_100T4_cap (read and write)
adv_100fdx_cap (read and write)
adv_100hdx_cap (read and write)
adv_10fdx_cap (read and write)
adv_10hdx_cap (read and write)
adv_asmpause_cap (read and write)
adv_pause_cap (read and write)
master_cfg_enable (read and write)
master_cfg_value (read and write)
use_int_xcvr (read and write)
enable_ipg0 (read and write)
ipg0 (read and write)
ipg1 (read and write)
ipg2 (read and write)
rx_intr_pkts (read and write)
rx_intr_time (read and write)
red_dv4to6k (read and write)
red_dv6to8k (read and write)
red_dv8to10k (read and write)
red_dv10to12k (read and write)
tx_dma_weight (read and write)
rx_dma_weight (read and write)
infinite_burst (read and write)
disable_64bit (read and write)
accept_jumbo (read and write)
laggr_multistream (read and write)

(solaris02-root: /dev:147)-> ndd -get /dev/ce adv_100fdx_cap
1

(solaris02-root: /dev:149)-> ifconfig -a
lo0: flags=2001000849<UP,LOOPBACK,RUNNING,MULTICAST,IPv4,VIRTUAL> mtu 8232 index 1
inet 127.0.0.1 netmask ff000000
ce0: flags=1000843<UP,BROADCAST,RUNNING,MULTICAST,IPv4> mtu 1500 index 2
inet xxx.xx.xxx.xxx netmask fffffe00 broadcast xxx.xx.xxx.xxx
ether 0:14:4f:3e:95:f8

just type "dladm show-dev" but this only works with solaris 10!

Thanks Duke!