Patent Document ID: 9485335
Application ID: 13966208
Patent Flag: 1

Claim One:
1. A method of operation in a high-speed Ethernet transceiver, the transceiver rated to communicate data at a maximum data rate and for coupling to a link, the method comprising: engaging in an autonegotiation process with a link partner transceiver to indicate whether one or more sub-rate modes of operation are supported, each sub-rate mode of operation corresponding to a sub-data rate that is less than the maximum data rate; terminating the autonegotiation process; participating in a training process, the training process including receiving a first training sequence corresponding to a first sub-data rate that is less than the maximum data rate; measuring a signal quality parameter for the received first training sequence; terminating the training sequence based on the measured signal quality parameter failing a predetermined criteria; and receiving a second training sequence corresponding to a second sub-data rate that is less than the first sub-data rate without starting a second autonegotiation process.