The terminology used often varies between environments and communications service managers used. The following table details the terminology that is used in this chapter. Alternative names are shown in parentheses.
| Generic Term | Description |
|---|---|
| Client | A machine, running a COBOL system, where you install communications client software. This machine accesses a host CICS environment via a local server. |
| Data Link Control (DLC) link | The interface to the network. The attributes of a link can be divided into two parts:
|
| Control Point (CP, CP Name) | Identifies the local node manager that provides services to the local logical units. |
| Link station | The part of data link control (DLC) that is responsible for the transfer of data between two communications services managers connected by a link. |
| Local server | The machine with the SNA link to the host, where you install communications server software, to provide access to a COBOL System running on client PCs. |
| Network name (NETID) | The name of the network to which the system is connected. |
| Logical Unit (LU) | A network accessible unit (NAU). In SNA there are a number of logical unit types that identify the protocols supported by that logical unit. For APPC the LU type is 6.2 referred to as LU 6.2. |
| Partner LU | The logical unit with which to communicate. |
| Transaction Program (TP) | The program to be executed at one end of a conversation. |
| Session | The logical connection between two network accessible units. |
| Inter Systems Communications (ISC) | Two or more regions running on different processor complexes that are able to communicate with each other. |
| Mode | The connection characteristics of a session. |