Stpid question, but....
on a 6748 1000 Mbps SFP card, you can configure a gig port to not negotiate speed. It seems that, by default, these ports cannot have their speed configured, but you can configure the speed to NOT negotiate using the 'speed nonegotiate' command.
Here's the stupid question, how do you reverse that??? What if you want to configure it to negoiate..? There is no negate command for this!
Enter configuration commands, one per line. End with CNTL/Z.
nonegotiate Do not negotiate speed
So, what if you select that and what to reverse it??? Strange...