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

     DATA SDUS RECEIVED
         Support: All

         Number of data NSDUs delivered across Transport interface after
         reassembly.

     ERROR REPORTS RECEIVED
         Support: All

         Number of error report PDUs delivered across Transport interface.

     EXPIRED SEGMENTS DISCARDED
         Support: All

         Number of segments discarded because lifetime expired during reassembly.

     IP PACKETS REASSEMBLED
         Support: IP

         Number of IP packets that have been successfully reassembled from
         fragments.

     SDUS TRANSMITTED
         Support: All

         Number of data NSDUs requested for transmission across Transport
         interface.

     SEGMENTS DISCARDED
         Support: All

         Number of segments data- or error-report discarded before delivery
         across the Transport interface, including segments discarded for any
         reason other than lifetime expiration during reassembly.

     SEGMENTS RECEIVED
         Support: All

         Number of data- and error-report NPDUs received before reassembly.