Considerations for the automatic deletion of APPC controller descriptions on the LAN

The system is set to automatically delete APPC controllers and devices that were automatically created. The time interval to delete APPC controller is set to 1440 minutes or 24 hours. For virtual APPN controllers, the default is 10,000 minutes. The automatic delete controller (AUTODLTCTL) parameter is on the CRTLINxxx and CHGLINxxx commands for local area network (LAN) lines. LAN lines include token ring, Ethernet, wireless, and distributed data interface (DDI).

To configure your LAN line to allow automatic deletion of the APPC controller descriptions, use the following information:

• Consider what time of the day would be the best for all users on the system. If automatic deletion occurred over the weekend, on monday morning all devices would be re-created and increase the system workload.
• Consider when weekends and holidays occur and increase the value of this parameter to take into account the most common working environment.
  Note:
  For personal computers on local area networks, consider using a large value for this parameter (for example, 5 days) to prevent deletions if someone goes on vacation.
• The AUTODLTCTL parameter can help manage the number of objects that are on the system. Multiple routes through the network can lead to multiple sets of configuration objects. This parameter can be used to automate the cleanup of these objects.

See the following references for more detail:

• For advanced configuration pages, see the Communications Configuration book.
• For more information about iSeries™ communications, see the page Communications Management book.