There are two forms of communication between WebSphere MQ for iSeries systems:
For TCP, a host address may be used, and these connections are set up as described in the OS/400 Communication Configuration Reference.
In the TCP environment, each distributed service is allocated a unique TCP address which may be used by remote machines to access the service. The TCP address consists of a host name/number and a port number. All queue managers will use such a number to communicate with each other via TCP.
This form of communication requires the definition of an iSeries SNA logical unit type 6.2 (LU 6.2) that provides the physical link between the iSeries serving the local queue manager and the system serving the remote queue manager. Refer to the OS/400 Communication Configuration Reference for details on configuring communications in OS/400.