Most documentation on CCO leans towards hard coding NIC's for servers, routers, switches, etc. I have done tests in the past with correctly negotiated 100/Full links and hard coded 100/Full links and throughput has always been better on the hard coded side. However, I came across this statement here:
About a page and a half below Ethernet/Fast Ethernet is the Gig section ....
Gigabit Ethernet (GE) has an auto-negotiation procedure (IEEE 802.3z) that is more extensive than that for 10/100 Mbps Ethernet and is used to exchange flow-control parameters, remote fault information, and duplex information (even though Catalyst series Gigabit Ethernet ports only support full-duplex mode). "
Just curious, for Servers and stuff with Gigabit NIC's is it now better to keep it set to Auto for speed and duplex?