Whilst on my first project to deliver three v490s to a customer, I despair at the network switch ports being forced to 100/Full. I’m shocked this is still standard practice when IEEE 802.3u fast ethernet auto-negotiation has been working quite happily since 1995!
The below boot invocation halved the install time from 1hour 19mins to 36minutes!
On the v490, I forced a boot net installation at 100/Full duplex by using :
ok> boot /dev/network@1:speed=100,duplex=full – install
Ethernet Best Practices : http://www.sun.com/blueprints/0704/817-7526.pdf