On Sun, 2011-07-10 at 22:08 -0500, Les Mikesell wrote: > On 7/9/11 12:18 PM, Giles Coochey wrote: > > Gigabit is different. > > No, the default of auto-negotiating works there too. > In 1000BASE-T, autonegotiation is required, according to http://en.wikipedia.org/wiki/Gigabit_Ethernet#1000BASE-T Which, in turn, refers to (click through without username required) http://standards.ieee.org/getieee802/download/802.3-2008_section2.pdf that states (in section 28D.5, part a) that Auto-negotiation in 1000BASE-T is required... -I