o  data octets received

    Number of data octets received at the port.

 o  data octets sent

    Number of data octets sent by the port.

 o  pdus received

    Number of pdus received at the port.

 o  pdus sent

    Number of pdus sent by the port.

 o  reference time

    Time at which the port was created (if the circuit is a PVC), or
    the time at which the port was first used to send or receive a
    call at the X.25 user interface (if the circuit is an SVC).

 o  segments sent

    Number of segments of data sent by this port.

 o  segments received

    Number of segments of data received by this port.