Note the following when generating LU6.1 communication between a standalone partner application and a UTM cluster application:
A partner application must generate one LPAP with a specific number of sessions and connections for each node of the UTM cluster application with which it wants to communicate.
To address the UTM cluster application, an LU6.1-LPAP bundle whose slave LPAPs are assigned to the cluster node should be generated in the partner application (see "MASTER-LU61-LPAP - Define the master LPAP of an LU6.1-LPAP bundle" ).
In the UTM cluster application, more sessions (LSES) than connections (CON) must be generated for the LPAP that represents the partner application: One session per cluster node must be generated for each connection.
Each cluster node requires only exactly the number of connections assigned to each LPAP in the partner application for the corresponding LPAP. However, because all cluster nodes have identical generations, the sessions for all the LPAPs of the partner application must be generated in every cluster node.
During generation, the LU6.1 sessions must be explicitly assigned to the node applications. To do this, define the reference name of the node application in the NODE-NAME parameter of the CLUSTER-NODE statement and specify this name in the NODE-NAME parameter of the LSES statement. As a result, the "right" session is selected when a session is established with a partner application.
Example:
The example below shows a generation in which the standalone application SA on the host HOSTSA is linked to the UTM cluster application CA on the cluster nodes NODECAX, NODECAY and NODECAZ. 4 connections between the standalone application and each of the node applications are generated. A MASTER-LU61-LPAP is generated for the LPAPs that represent the node applications in the standalone application. This represents the UTM cluster application.
Standalone application SA on HOSTSA | UTM cluster application CA on NODECAX/Y/Z |
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