This 16 bit field contains the most recent training
configuration in an error-free training frame
sent by the end node connected to the port.  For
cascade ports, this is the responder's configuration
field from the most recent error-free training
response frame received in response to training
initiated by this repeater.  This object is formatted
as follows:

    First Octet:       Second Octet:

     7 6 5 4 3 2 1 0    7 6 5 4 3 2 1 0
    +-+-+-+-+-+-+-+-+  +-+-+-+-+-+-+-+-+
    |v|v|v|0|0|0|0|0|  |0|0|0|F|F|P|P|R|
    +-+-+-+-+-+-+-+-+  +-+-+-+-+-+-+-+-+

    vvv: The version of the 802.12 training protocol
         with which the training initiator is
         compliant
    FF:  00 = frameType88023 is requested
         01 = frameType88025 is requested
         10 = reserved
         11 = either frameType88023 or frameType88025
              is acceptable
    PP:  00 = request singleAddressMode
         01 = request promiscuousMode
         10 = reserved
         11 = reserved
    R:   0  = request is from an end node
         1  = request is from a repeater