Terminal Defaults

Use this panel to assign LUs to either default generic pools or default specific pools. When clients that are terminals connect to the TN3270 server, each client must be assigned to a VTAM LU. This LU will be activated and used for SNA connectivity to the SNA application.

TN3270 server uses VTAM application LUs to represent clients. The TN3270 server activates one SNA application minor node LU to represent each Telnet IP client. These Telnet application LUs establish sessions with VTAM host applications (for example, CICS).

When a terminal client connects, the TN3270 server searches for a client identifier that matches this client connection. If no match is found, then the server will use the default terminal pools to assign an LU for the client's use.

The client's workstation can be configured to assign the TN3270 client to a specific LU when the connection is established. By default, clients are not defined to use a specific LU. Clients that do NOT specify assignment to a specific LU will be assigned an LU from the Default generic pool. Client's that DO specify assignment to a specific LU will be assigned that LU if it is defined in the Default specific pool.

This panel is also used to set the application access method when a client is assigned to an LU from one of these default pools.

When assigning applications you must understand some characteristics of the clients connecting. If the client is a terminal, then it is likely connecting in to an application that provides full screen TN3270 support. However, it may be connecting to a line mode application such as TSO. There are several ways of setting up application access based on the characteristics of the client and the application.

Before you begin, decide which terminal pools you want to manipulate and which actions you want to perform on them.

Steps

  1. Click Add to add a new LU or range of LUs to a Default Generic Pool or to a Default Specific Pool.
  2. Click Edit to change an existing LU or range of LUs you've selected.
  3. Click Remove to remove an existing LU or range of LUs you've selected.
  4. Specify the default application for terminal sessions.

  5. If you have 3270 full screen mode sessions, choose among 3 options when a client connects to a server.
    1. Click Open an application if you always want to use the same application. The TN3270 server will connect the client directly with the application. Ensure the application name follows the standard naming conventions.
    2. Click Display a USSMSG10 panel if you have an existing USS table. Ensure the application name follows the standard naming conventions. An assembled and linked USS table can be used directly by Telnet. Unsupported statements are ignored and do not interfere with the processing of the command.
    3. Click Display the Telnet Solicitor panel if you want the default. The client will need to supply a user ID, password and application name.
    4. For linemode clients, enter an application name if you want to override the use of the default solicitor panel.

You have completed this panel after you have:

You are not required to use either of the default pools.

Fields

Default generic pool

Default specific pool

3270 full screen mode sessions

Application name

USS table name

Linemode sessions

Radio buttons
Click Open an application to specify an application name for 3270 full screen mode sessions.
Click Display a USSMSG10 panel to specify a USS table name for 3270 full screen mode sessions.
Click Display the Telnet solicitor panel to use the default.

Push buttons
Click Add to add a LU or range of LUs in either a default generic pool or a default specific pool.
Click Edit to edit an LU or range of LUs in either a default generic pool or a default specific pool.
Click Remove delete an LU or range of LUs from either a default generic pool or a default specific pool.