HPlogo APPC Subsystem on MPE XL Node Manager's Guide: HP 3000 MPE/iX Computer Systems > Chapter 2 Interactive Control Operator Commands

APPCCONTROL SESSIONS

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Controls the number of active APPC sessions of a specified APPC session type.

Syntax

APPCCONTROL SESS[IONS]
                  ;STYPE=Session Type Name
                 ;LIMIT=New Session Limit

Parameters

Session Type Name

Required. A session type that is configured in the APPC subsystem configuration file.

New Session Limit

Required. The new number of active sessions for the session type. The following restrictions apply to the new session limit:

  1. The new session limit for the specified session type may not exceed the Maximum Number of Sessions value configured for the session type. To find out the Maximum Number of Sessions value for a session type, issue the APPCCONTROL STATUS command, described later in this chapter. See Chapter 4 “APPC Subsystem Configuration” for information on session type configuration.

  2. The total number of simultaneously active sessions, for all LU 6.2 products using the APPC subsystem, may not exceed 256.

Description

The APPCCONTROL SESSIONS command changes the number of active sessions for a specified session type. The new session limit for the session type is in effect only while the APPC subsystem is currently active; the APPCCONTROL SESSIONS command does not update the APPC subsystem configuration file.

When you issue the APPCCONTROL SESSIONS command to raise the session limit for a session type, sessions will be activated until the new session limit is reached.

Using the APPCCONTROL SESSIONS command to reduce the session limit for a session type causes an orderly termination of the sessions affected; termination will not occur until conversations on the affected sessions have ended. All current conversations for the affected sessions are allowed to complete, but no new conversations are allocated for those sessions.

NOTE: If you are changing the session limit for an independent LU running parallel sessions, the new limit will be negotiated with the partner LU on the remote system. Therefore, the actual new limit might not agree with the limit you requested in your APPCCONTROL SESSIONS command.

To find out the actual, negotiated session limit, issue the APPCCONTROL STATUS command, described later in this chapter.

For dependent LUs and independent LUs running single sessions, the new value is not negotiated.

You can modify session limits programmatically by calling the APPCSessions intrinsic, described in Chapter 3 “Control Operator Intrinsics”

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