Specifications

CHAPTER

1-1

Cisco ONS 15454 and Cisco ONS 15327 TL1 Command Guide, R3.3

May 2002

Getting Started

Transaction Language 1 (TL1) is a subset of the input and output messages contained in the International

Telecommunications Union (ITU) Man-Machine Language (MML). TL1 provides a standard set of

messages that can be used for communicating between operating systems and network elements, and

personnel and network elements. The ONS 15454 and ONS 15327 can support up to 20 concurrent TL1

sessions in this release. For more information about TL1, refer to Telcordia document GR-833-CORE,

Network Maintenance: Network Element and Transport Surveillance Messages.

This chapter provides information and procedures for getting started with TL1:

• Setting up TL1 communication

• TL1 command syntax

• Autonomous messages

• TL1 commands by user security

• Provisioning a DS3E card in CTC using TL1

• Mixed mode timing support

• TL1 command completion behavior

• Test access

1.1 Setting up TL1 Communication

The period during which a user is logged into the ONS 15454 or ONS 15327 is called a session. There

are three options you can use to open a session (login):

• Cisco Transport Controller (CTC)

• Telnet

• Craft interface

When you logout of any of these options, you are closing a session.

The ONS 15454 and ONS 15327 allow a maximum of 20 concurrent TL1 sessions using any one or any

combination of the options listed above. For information on issuing commands to multiple nodes, see

Chapter 2, “TL1 Gateway.”