DUPLICATE PDUS RECEIVED

         Total number of all types of detected duplicate TPDUs received from the
         remote NSAP.  This attribute applies only to COTS.

     FAILED CHECKSUM

         Number of checksum failure events detected.

     PDUS RECEIVED

         Total number of all types of TPDUs received from the remote NSAP
         excluding detected duplicates.

     PDUS SENT

         Total number of all types of TPDUs sent to the remote NSAP excluding
         retransmissions.

     RETRANSMITTED PDUS

         Total number of all types of retransmitted TPDUs sent to the remote
         NSAP.

     TOTAL OCTETS RECEIVED

         Total number of octets of all types of TPDUs received from the remote
         NSAP, regardless of their disposition. This count includes detected
         duplicates.

     TOTAL OCTETS SENT

         Total number of octets of all types of TPDUs sent to the remote NSAP,
         including retransmissions.

     USER OCTETS RECEIVED

         Total number of user data octets received from the remote NSAP,
         including normal, expedited, connect, accept, and disconnect data. This
         count does not include duplicates such as data retransmitted by the
         remote NSAP.

     USER OCTETS SENT

         Total number of user data octets sent to the remote NSAP, including
         normal, expedited, connect, accept, and disconnect data.  This count
         does not include data retransmitted by the local NSAP.

     USER PDUS RECEIVED

         Total number of PDUs containing user data received from the remote
         NSAP, including normal, expedited, connect, accept, and disconnect
         data. This count does not include duplicates such as TPDUs
         retransmitted by the remote NSAP.

     USER PDUS SENT

         Total number of TPDUs containing user data sent to the remote NSAP,
         including normal, expedited, connect, accept, and disconnect data. This
         count does not include retransmitted TPDUs.