Advanced

On the Advanced tab are advanced settings for the connection, excluding those initially set up with the Create a Connection wizard. Use the Basic tab for modifying the basic settings: host, session type, port, code page, and screen size. The following advanced settings can be modified on the Advanced tab.

For 3270E connections you can specify an LU name or LU Pool name for your connection. You have four options for specifying the LU name or LU Pool name. Select one of the following options:

None (server assigned): Click this if you want the Telnet server to assign the LU. This option can be used with pooling.
Prompt user: Click this if you want to prompt the user for the LU name. If pooling is enabled, this option should not be used.
Use a specified value: Use this to specify the LU name or LU Pool name to be used. If you plan to use connection pooling, you may specify the name of an LU Pool large enough to support the connection pool you define.
Use an HTTP session variable (Web-only): Click this if you want to specify the contents of the HTTP session variable as the LU name or LU Pool name. If pooling is enabled, this option should not be used.

For 5250 connections you can specify a Workstation ID for your connection. You have four options for specifying the workstation ID. Select one of the following options:

None (server assigned)

Click this if you want the Telnet server to assign the workstation ID. This option can be used with pooling.

Prompt user

Click this if you want to prompt the user for the workstation ID. If pooling is enabled, this option should not be used.

Use a specified value

Click this if you want to supply a string from which the workstation ID is created. This option can be used with pooling if a wildcard workstation ID is specified.

Workstation ID parameter for 5250 connections can use wildcard characters. The workstation ID defines the name of the workstation. The first character must be A-Z, $ (dollar sign), @ (commercial at sign), or # (number sign). The remaining characters can be A-Z, 0-9, $, @, #, . (period), and _ (underscore). If you do not complete this field, a workstation ID is automatically assigned by the host. The ZIETrans Server can generate a new and non-arbitrary workstation ID for a session. Keywords and special characters in the workstation ID field can cause some or all of the following information to be substituted into the workstation ID value that is sent to the Telnet server:

short Session ID(*)
Session Type ID(%)
Collision Avoidance ID(=)

When specified, the Collision Avoidance ID enables the generation of a new workstation ID if the Telnet server rejects the previous name (which can occur when the old name is already in use on the IBM® i server).

Wildcard combinations in the workstation ID field allows the ZIETrans Server to automatically generate more ID variations for achieving connection acceptance from the host. This decreases the time required for session connection, as it decreases the number of times the host must reissue a request to the client for valid workstation ID.

Wildcard characters can be specified multiple times in the workstation ID field in any combination with other alphanumeric characters. (For example: N=A=M=E, NAME==, and so on.) With each use of the wildcard, you decrease the likelihood of generating a workstation ID already claimed by another session:

Use of two [=] results in approximately 1 in 50 chances of duplicating an established ID.
Use of three [=] results in approximately 1 in 300 chances of duplicating an established ID.
The number of unique names generated is approximately 36ⁿ, where n is the number of equal signs [=].

For example: Given the input of NA=ME for workstation ID, the one [=] can trigger generation of 36 unique IDs that use the alphanumeric characters specified (N, A, M, E). Adding a second [=] can trigger generation of approximately 1296 unique IDs, and so on.

Use an HTTP session variable (Web-only)

Click this if you want to specify the contents of the HTTP session variable as the workstation ID. If pooling is enabled, this option should not be used. You can also use wildcard characters in the specified string. For more information, see Use a specified value.

In the Configure optional, advanced connection settings section you can add, modify, or remove any additional IBM Host On-Demand session parameters using the buttons to the right of the table of parameters. If you click Add, you can select a parameter using the drop-down list next to the Name field and then type a value into the value field. Some parameters are set on other tabs of the connection editor. If you try to set them here, a warning message is displayed. For more information, go to the Host On-Demand Knowledge Center at https://www.ibm.com/docs/en/host-on-demand/13.0 and search on session parameters.

Note:

Parameters that have their own fields on the Basic and Advanced tabs cannot be entered in this table. They must be modified in their own specific fields.
Print support parameters added here will be ignored. Add your print support parameters on the Printing tab. For more information see Printing.
For 3270E connections, the negotiateCResolution parameter is set to true by default. See Contention resolution using z/OS Communications Server for more information and for when you might want to change this setting to false.

Other settings on the Advanced tab allow you to specify:

Only allow single connection with each user ID.
Abandon attempt to connect after a specified number of seconds.
Abandon attempt to disconnect after a specified number of seconds.

For DBCS considerations about displaying and printing user-defined characters (UDCs), see Working with user-defined characters.