Chapter 5: General Diagnostic Tools; Acli Command Modes - Avaya 4000 Series Troubleshooting Instructions

Chapter 5: General diagnostic tools

The Avaya Ethernet Routing Switch 4000 Series device has diagnostic features available through DM,
ACLI, and Web-based Management. You can use these diagnostic tools to help you troubleshoot
operational and configuration issues. You can configure and display files, view and monitor port statistics,
trace a route, run loopback and ping tests, test the switch fabric, and view the address resolution table.
This document focuses on using ACLI to perform the majority of troubleshooting.
The command line interface is accessed through either a direct console connection to the switch or by
using the Telnet or SSH protocols to connect to the switch remotely.
You can use the Web interface in cases where the troubleshooting steps require corroborating information
to ensure diagnosis.

ACLI command modes

ACLI provides the following command modes:
• User EXEC
• Privileged EXEC
• Global Configuration
• Interface Configuration
• Router Configuration
• Application Configuration
Mode access is determined by access permission levels and password protection.
If no password is set, you can enter ACLI in User EXEC mode and use the enable command
to move to the next level (Privileged EXEC mode). However, if you have read-only access, you
cannot progress beyond User EXEC mode, the default mode. If you have read-write access
you can progress from the default mode through all of the available modes.
With sufficient permission, you can use the rules in the following table to move between the
command modes.
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