[c-nsp] Confirmation of Gigabit Ethernet autonegotiation behavior

[John Neiberger]

A few of us at work have been discussing autonegotiation in gigabit
Ethernet networks and I wanted to get a clarification. I know that on Cisco
devices with Fast Ethernet, if you manually set speed and duplex, this
disables Nway autonegotiation completely. However, I don't think that is
the case for gigabit links since the autonegotiation process is so much
more important. I believe that it still participates in autonegotiation but
only offers the configured speed and duplex setting in the negotiation
process.

Can anyone shed some light on this? I've tried searching CCO for a while
and haven't found the information I'm looking for.

Thanks,
John