Configuring APPC Communication

Defining Modes and Classes of Service

Command-line administration program

To define a mode, issue the following command:

define_mode

To change the default mode, issue the following command:

define_defaults

To define a class of service, issue the following command:

define_cos

Mode Configuration Parameters

The following parameters are required for mode configuration:

Name

The name of the mode you are defining. The mode name is a string of 1–8 characters.

APPC applications that use this mode, including both local and remote applications, may also use this name, so check the name with your application developer (or refer to your product documentation for a third-party application).

Session limits

Use the following fields to specify session limits:

Initial session limit

The maximum number of sessions (up to the maximum session limit) that a pair of LUs can have using this mode, unless a different maximum is negotiated using CNOS.

Normally, use the value 8 for this field. If you are in doubt, consult your SNA network planner or APPC application developer (or for a third-party application, the product documentation).

Maximum session limit

The maximum number of sessions (up to 32,767) permitted between a pair of LUs using this mode, even with CNOS negotiation.

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Chapter 7