Diagnosing restartable VMCF/TNF problems

This topic describes how to diagnose restartable VMCF/TNF problems and contains the following subtopics:

VMCF or TNF fail to initialize
Abends
Steps for diagnosing no response to commands
VMCF or TNF does not stop

You can configure virtual machine communication facility (VMCF) and termination notification facility (TNF) in two different ways: as restartable subsystems or as nonrestartable subsystems. For details about configuration, see z/OS Communications Server: IP Configuration Reference.

If you choose restartable VMCF and TNF, you might encounter the problems described in this topic.

Note: For information about common VMCF and TNF problems, see z/OS Communications Server: IP Configuration Guide.