NET$MGMT_HELP.HLB  —  DDCMP  ddcmp link, counters
     NAKS RECEIVED INDICATING MESSAGE HEADER FORMAT ERROR

         Number of NAK messages received that report errors in message headers
 	sent from the local station.

     NAKS RECEIVED INDICATING RECEIVE OVERRUN

         Number of NAK messages received that report a receive overrun at the
 	remote station.

     PDUS RECEIVED WITH MESSAGE HEADER FORMAT ERROR

         Number of times the local station detected an error in a message
         header.

     RECEIVE OVERRUNS

          Number of times the local station detected a receive overrun.

     SELECTION ADDRESS ERRORS

         Number of times that the controller of a multipoint link received a
 	message with an address other than that of the currently selected
 	station. This counter is supported only if the characteristic protocol
 	is set to control.

     STREAMING TRIBUTARIES

         Number of times that the remote station or a tributary station
 	exceeded the maximum transmission interval without releasing the line,
 	or failed to release the line after sending a message with the select
 	flag set. This counter is present only on half-duplex, point-to-point
 	links, or when the local station is a controller of a multipoint link.
 	This counter is not supported if the protocol characteristic is set
 	to tributary.

     TRANSMIT UNDERRUNS

         Number of times the local station detected a transmit underrun.
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