During distributed processing via LU6.1 and OSI TP network connections are required to enable applications to communicate with each other. openUTM uses the services of the BCAM transport system for these network connections.
To allow you to establish these network connections, addresses must be assigned to both communication partners. These addresses must be unique throughout the network. The network type required for communication is defined by means of appropriate entries in KDCDEF generation (BCAMAPPL T-PROT= statement) and in BCAM generation. It is important to note that openUTM does not distinguish between ISO and TCP/IP networks (ISO and RFC1006 entries for the T-PROT parameter are synonymous). This distinction must be made in BCAM generation when defining connections between participating computers.
In the case of a connection via RFC1006, BCAM uses the number 102 as the partner’s listener port number by default. If a different port number is to be used, e.g. because the transport system of the partner cannot use port number 102, then the port number can be specified via the LISTENER-PORT operand in the PTERM and (OSI-)CON statements.