Use this general macro to create a process selection vector (PSV) table
entry. Use the IPSVT macro to define the start and the end of the PSV
table; see IPSVT-Define the Start and End of the PSV Table for more information.
See TPF ACF/SNA Network Generation and TPF ACF/SNA Data Communications Reference for more
information about process selection vectors (PSVs).
Format
- NAME=psvname
- specifies the PSV name, where psvname is a 1- to 6-character
alphanumeric name. The PSV names that are reserved for IBM use start
with the letter I.
- PGM=pgmname
- specifies the program associated with the PSV name, where pgmname
is the 4-character program name. This program can be file
resident. It must reside in the basic subsystem (BSS), and it can also
reside in other subsystems.
- RESERVE
- specifies one of the following:
- YES
- specifies that the entry is reserved for future use. This parameter
generates a SERRC macro call in place of the ENTNC macro call.
- NO
- specifies that the entry is not reserved for future use.
- DFC
- specifies one of the following:
- YES
- specifies that the user PSV provides the SNA-designed data flow control
(DFC) layer.
- NO
- specifies that the user PSV does not provide the SNA-designed data flow
control (DFC) layer.
Entry Requirements
Segment COBU, which generates the PSV table, must be allocated as residing
in the basic subsystem (BSS).
Return Conditions
None.
Programming Considerations
- In a loosely coupled system, the PSV table is shared by all processors in
the complex.
- Although segment COBU can be loaded using the online loader, the new copy
of this segment is not in effect until the next system initial program load
(IPL) is performed.
Examples
The following example defines a PSV table.
IPSVT BEGIN
IPSVE NAME=TYMNET,PGM=TYMI
IPSVE NAME=SITA1,PGM=SITI
IPSVT END