Using the abbreviated logon command
An abbreviated logon command can be used to log on to a VTAM session from a VTAM terminal.
Your VTAM configuration might contain a USS table (USSTAB) entry or a logon interpret (LOGTAB) table entry that defines a shorter command for logging on than the required minimum LOGON APPLID(applid) command.
The default abbreviated logon command is BBV.
During customization, sample LOGTAB and USSTAB entries can be created, but they must be added to production tables and the tables must be recompiled before the abbreviated command is usable. In addition, the USS parameter must be set to NO in the LAS initialization parameter list to enable the table entry and the abbreviated command (see Understanding-LAS-initialization-parameters). Check with your VTAM site administrator to find out if a table entry is configured or if the default value was changed during customization.
To use the abbreviated command
Issue the following command at the terminal logon screen:
BBV [userID/password]Parameter
Description
userID
Is the user ID to be associated with your session. Any standard ID that TSO supports is supported by Using the LOGON command; however, the ID must be defined to your external security manager to be accepted by Using the LOGON command.
If you specify BBV userID without password, and a password, passphrase, or IBM Multi-Factor Authentication for z/OS (IBM MFA ) is required, the password panel is displayed (see Using-the-logon-panels ).
If you are not required to provide a password, passphrase, or IBM MFA for the user ID, the logon panels are skipped and the default product menu is displayed.
/password
Specifies the password that is associated with the user ID. When you define the password value, you must define the userID value, and you must separate userID and password with a / (slash) character.
If you specify BBV userID/password, the logon panels are skipped, and the default product menu is displayed. However, you might not want to define the password because it is visible on the screen when specified in the LOGON command.
If you are using passphrases or IBM MFA, do not use password. You must enter the information manually on the password panel as explained in Using the password panel.
The following message appears when the abbreviated logon command is issued:
Then, depending on how you issue the abbreviated logon command, one or both of the Using the LOGON command logon panels will appear (see Using-the-logon-panels).
Examples of using the abbreviated logon command
The following examples show how the abbreviated logon command can be defined for a VTAM terminal session logon.
The default values are used in these examples, but your site might have defined other values.
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