Communications Programming Concepts

DLCETHER Link Session Termination

The Standard Ethernet data link control (DLCETHER) device manager can be terminated by the user or by the remote station in the following ways:

• Issuing a DLC_HALT_LS command operation to the DLCETHER device manager will cause the primary/combined station to initiate a disconnect (DISC) command packet sequence.
• Receiving an inactivity time out can terminate a DLCETHER link session. This action is useful in detecting a loss of connection in the middle of a session.
• Sending a DISC command packet as a primary combined station will terminate a DLCETHER link session.
  Note
  Abnormal termination is caused by certain protocol violations or by resource outages.