Transaction Language 1 (Tl1); Introduction; Overview - ADTRAN MX2800 STS-1 System Manual

1.

INTRODUCTION

Transaction Language 1 (TL1) is a BELLCORE standard used in the input and output messages that pass
between Operations Systems (OS) and Network Elements (NE) in telecommunication networks. It was
developed to standardize equipment surveillance and memory administration, and to test with a common
format.
This release of TL1 primarily supports the interactive and autonomous retrieval of system events as part of
a valid TL1 session.
2.

OVERVIEW

TL1 is an ASCII-based language that supports both command-response and autonomous (NE) message
generation. Commonly, TL1 is used over an X.25 packet network but is completely independent of any
physical layer protocols. For the MX2800, TL1 is implemented as a Telnet session running over either
Ethernet or PPP.
To successfully initiate a TL1 session, the unit must be properly configured for an Ethernet (LAN) or PPP
connection. A valid IP address, gateway address, and subnet mask are required. Refer to
ment on page 3-16. User authentication is also required. An account must be set up before initiating a TL1
session.
An account may be set up via the VT100 menus (Configuration/System Management/System
Security/User Account Management). An account includes a username, password, and privileges. The
privileges are as follows:
• Admin privileges allow the use of all supported commands.
• Guest privileges allow only the activation of a TL1 session, cancellation of a TL1 session, and retrieval
of specific system information.
• Interface privileges allow the use of all supported commands except modifying the user account
information, setting the MX2800 date and time, configuring alarm relays, and operating loopbacks.
• Test privileges allow the use of all supported commands except modifying the user account information,
configuring alarm relays, and setting the MX2800 date and time.
The TL1 account privileges are detailed in
61204659L1-1A
S 9, T
ECTION RANSACTION
Section 9

Transaction Language 1 (TL1)

Table 9-1
L
ANGUAGE
on page 2.
System Manage-
9-1