A VTAM® application program can request and receive session-related data from VTAM and NCP. A VTAM application program can also collect session information about cross-network sessions and information about the explicit route being used for a session. A VTAM application program uses the CNM interface to do the following:

• Gather information about subarea nodes and about the transmission groups that comprise an explicit route
• Initiate and terminate the collection of session data from the SSCP.

Some examples of IBM-supplied VTAM application programs that use the CNM interface to gather session data are:

• The NetView® program
• NLDM Release 2 or 3.