Command Types

These are the basic BDT commands and their functions:

INQUIRY (I) commands request information about jobs or the BDT subsystem.
MODIFY (F) commands change parameters or values given during initialization or in previous commands.
CALL (X), START (S), RESTART (R), and CANCEL (C) commands control the SNA manager. They start and stop sessions between nodes.
VARY (V) commands control BDT resources such as virtual logical units (VLUs).
The MESSAGE (Z) command allows you to communicate with any TSO, JES3, or multiple console support (MCS) console anywhere in the BDT network.
The SEND (T) command routes commands to other BDT systems.
The JES command sends JES3 commands from one JES3 system to another JES3 system in the same complex.
The DUMP command dumps the BDT address space.
The RETURN command terminates BDT.

The MODIFY,NODE,FENCE command, the START,SNA,LOG command, the SEND command, and the MESSAGE command are for the File-to-File feature only. The MODIFY,JES3 command is for the SNA NJE feature only. All other commands can be used with both features.