At the system on which jobs are submitted, JES2 determines the execution node for a job in one of three ways:

• The job enters the system on a device that has a defined default execution node. You can define the default execution node by using the XEQDEST= parameter on RDR(nn) or R(nnnnn).RD(m) initialization statements.
• A /*XMIT, /*XEQ, or /*ROUTE XEQ control statement, in the JCL for the job, explicitly defines the execution node (overriding the default).
• An operator command (entered when the job is queued for execution or transmission to another node) explicitly defines the execution node (overriding the default or control statement routing).