TURN - Changing the DMZ control status

The TURN command is used to pass the protocol session control.

Command syntax: TURN


Use this command to change the DMZ control status.



Partner identifier.

PART = identifier

A partner (in the list you can have a maximum of four partners defined in PART of CFTPROT ) for which a PeSIT session, with transactional turns, is cyclically opened.Inactive partners(result of the command INACT) at the time of the transactional turn are not taken into account.Inactive partners(result of the command INACT) at the time of the transactional turn are not taken into account.


Cycle time-out. Minimum duration of session.

Minimum duration of a session, given in minutes. After CTO (Cycle Time Out) minutes, if no transfer has been initiated by the remote partner the session is freed. When a transfer terminates, the waiting period before a new transfer (Tw) is recalculated on the basis of the time when the session was opened (To), the current time (Tc) and the parameters DISCTD and CTO: Tw = max [ CTO – ( Tc-To) , DISCTD].


Period for creation of a protocol session.

Creation period for PeSIT protocol sessions (given in minutes). For example, if CYCLE=45, a PeSIT session is established every 45 minutes between all the active partners in the PART parameter. Control is handed to the remote partner in each session.


Action to do in the parameter or partner base.


  • INACT: temporarily stops automated calls to a given site
  • ACT: reactivates automated calls after the INACT command
  • START: manually triggers a single connection for changing direction
  • CREATE: triggers an automatic, cyclic TURN



Method of data exchange.

  • FILE: data exchange via files and messages
  • MESSAGE: exchange of messages only

This value is negotiated with the value specified in the Transfer CFT within the DMZ.

Related topics

DMZ and the TURN command

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