Configuration Parameters › Destination Parameters for Single LUs, Groups of LUs, and Single IPNAMEs › SRUSIZE

SRUSIZE

Specifies the message size limit in the BIND request for request units sent on the session.

128 to 65536

Specifies the message size.

Default: The value derived from the VTAM logmode table entry used by VTAM during initial session establishment and passed to CA XCOM Data Transport via the LOGON exit CINIT or SCIP exit bind RU.

Notes:

This parameter is relevant only to sessions where the system is the primary logical unit.

• In general, remote lines use small RU sizes and channel‑attached devices use large RU sizes. High‑speed remote links (for instance, T1 lines) usually benefit from large RU sizes.
• SRUSIZE can be overridden by the secondary logical unit.