APPL(jxxxxxxx) - Application Characteristics Specification

The APPL initialization statement specifies the characteristics of the JES2 applications known to VTAM® at a given JES2 node. In the case of a multi-access spool node, each member of the JES2 node which is connected to the same SNA network (through VTAM by an SDLC link) must be uniquely defined as an application to VTAM despite the fact that a shared-spool configuration is considered a single node by JES2. For a more complete discussion of application definition, see z/OS JES2 Initialization and Tuning Guide.

The subscript (jxxxxxxx) specifies a 1- to 8-character application name by which JES2-NJE is known to VTAM at the indicated NJE node. Symbolic application names must be unique and must be known at all JES2 nodes participating in the same SNA network. For APPL initialization statements defining a JES2 application at the local node (OWNNODE parameter on the NJEDEF statement), the subscript specification (jxxxxxxx) defining the local JES2 must match the APPLID specified on the LOGON(n) initialization statement. This relationship is checked to ensure that the information supplied to VTAM is consistent with information supplied to JES2.

When it has been (initially) defined, the subscript can be a specific application name (for example, MYNODE1) or a more generic form such as MYNODE* or *.
Note:
  1. All parameters can be modified by operator commands. To modify both LINE= and LOGMODE=, the application must be inactive.
  2. Starting a node (using the $S N command) that does not have an APPL defined causes an APPL to be dynamically added.