Library /sys$common/syshlp/net$mgmt_help.hlb FDDI, port, counters  *Conan The Librarian (sorry for the slow response - running on an old VAX)

     MULTICAST OCTETS RECEIVED

         Number of multicast user data octets successfully received and
         available to the data-link user.

     MULTICAST OCTETS SENT

         Number of multicast user data octets successfully transmitted using
         the port.

     MULTICAST PDUS RECEIVED

         Number of multicast frames successfully received and available to
         the data-link user.

     MULTICAST PDUS SENT

         Number of multicast frames successfully transmitted using the port.

     OCTETS RECEIVED

         Number of user data octets successfully received and available to
         the data-link user.

     OCTETS SENT

         Number of user data octets successfully transmitted using the port.

     PDUS RECEIVED

         Number of frames successfully received and available to the data
         link user.

     PDUS SENT

         Number of frames successfully transmitted using the port.

     UNAVAILABLE USER BUFFERS

         Number of times no user buffer was available at the port for an
         incoming frame.