John, at 12:35 on Aug 17 1996, you wrote to Bill Grimsley...

JP> On Sunday August 13 1995, Bill Grimsley wrote to Angus Tong ...

BG> On the USRs, ATO1 returns on-line and retrains, while ATO2 returns on-line
BG> and speed-shifts.  There is a subtle difference.

JP> Which is ...?

The manual is (as usual) far from clear, but as I understand it, retraining
completely renegotiates the connect, while speed-shifting will improve the
link rate to the highest one which is supported by the previously
negotiated symbol rate.  That's pretty much how it appears to work here
anyway.

Regards, Bill
@EOT:

--- MsgedSQ/2 3.50