Special considerations for topology manager application programs

Usually, topology manager application programs need to know about specific resources or sets of resources, but do not want to receive event reports about all resources in a network. For CMIP services to know which resources the manager application program is interested in, the manager application program creates an EFD object and specifies a filter attribute for it to indicate which event reports are to be forwarded to the manager application program.

Therefore, to allow the VTAM® topology agent to send only those notifications for resources that a topology manager application program is interested in, the following conditions must be met:

VTAM must be started with the OSIEVENT=PATTERNS start option. See z/OS Communications Server: SNA Resource Definition Reference for a description of this start option.
The manager application program must create EFD objects with filter attributes that follow the patterns that CMIP services recognizes. For a description of these patterns, see Patterns of EFDs that CMIP services recognizes.

If the OSIEVENT=ALL start option is specified, the VTAM topology agent generates all possible notifications, as long as at least one EFD has been created. If no EFDs have been created, no notifications are generated.

If the OSIEVENT=NONE start option is specified, the VTAM topology agent generates no notifications.