NIC link details

Finding the interface link details on solaris can be a pain. Is it in ndd or /etc/system or kstat or perhaps the driver conf file under /kernel/drv. Maybe it's in the driver conf file in /etc. Solaris 10 simplifies things with dladm

root@sol10:/ # dladm show-dev
eri2            link: unknown   speed: 100   Mbps       duplex: unknown
ce4             link: unknown   speed: 100   Mbps       duplex: half
ce5             link: unknown   speed: 100   Mbps       duplex: half
ce6             link: unknown   speed: 100   Mbps       duplex: half
ce7             link: unknown   speed: 0     Mbps       duplex: unknown
eri0            link: unknown   speed: 100   Mbps       duplex: half
ce0             link: unknown   speed: 100   Mbps       duplex: full
ce1             link: unknown   speed: 0     Mbps       duplex: unknown
ce2             link: unknown   speed: 100   Mbps       duplex: half
ce3             link: unknown   speed: 100   Mbps       duplex: full
eri1            link: unknown   speed: 0     Mbps       duplex: unknown
dman0           link: unknown   speed: 0     Mbps       duplex: unknown