Issuing commands

TL1 commands are issued to the system from a craft terminal (a terminal that performs local maintenance operations) or from an Operations Support System Interface (OSSI).

To issue commands, the user must be logged on to the shelf or node that is the target of the command. The shelf or node that is the target of the command is referred to as the targeted system.

A session is the period of time when a user is logged on to the system. The process of logging on is referred to as opening a session. Logging off is referred to as closing a session. To open a TL1 session, a user must have a user identifier (UID) and a private identifier (PID, or password). These codes are assigned by the system administrator.

The UID/PID database may be accessed on a per-user basis, so that if a session is inactive for 30 minutes, the system automatically closes the session.