Logging off

When a user logs off from a VTAM® terminal when ETO is used, IMS calls the Logoff exit routine (DFSLGFX0).

Recommendation: If you have provided a Logon exit routine (DFSLGNX0) that maintains system information, provide a Logoff exit routine (DFSLGFX0) also, to complement that processing. Ensure that the Logoff exit routine handles all non-MSC and non-LU 6.2 terminals with which IMS communicates.

Using the Logoff exit routine, you might want to maintain a count of the terminals that are logged on.