z/OS Communications Server: SNA Network Implementation Guide
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Requesting session limit changes: Application

z/OS Communications Server: SNA Network Implementation Guide
SC27-3672-01

An LU 6.2 logical unit requests that its partner LU alter the number of sessions for a given mode name by sending a change number of sessions (CNOS) request. A VTAM® application program can request that its partner LU change the number of sessions. The application program does this by issuing an APPCCMD macroinstruction with the CONTROL=OPRCNTL and QUALIFY=CNOS operands specified.

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