Foundry Networks AR1202 - Manual (Page 51)

June 2004 © 2004 Foundry Networks, Inc. B - 1
Appendix B
Troubleshooting
This chapter provides general troubleshooting tips in addition to network tests and diagnostics information for the
Foundry AR1202 and AR1204 router.
Alarms and System Status
The AR1202 and AR1204 router reports various alarms upon detecting certain irregular conditions in the incoming
WAN signals. For more information about the command line interface and system commands, refer to the
appropriate Foundry Command Reference Guide (either the domestic or international version).
NOTE: The slot and/or interface number is required for commands displaying information on specific interfaces.
If this information is not included when the command is issued, the system prompts for it. For more information
about a command, access command help by typing help <command name> and pressing Return.
To view alarms, use the appropriate derivative (T1/E1) of the following command:
• display module alarms t1
Use this command to view the current alarms for any T1 WAN link of the system.
You can display the current configuration and operating status of each WAN link using use the appropriate
derivative (T1/E1)of the following command:
• display module configuration t1
Use this command to view the current configuration of the selected WAN link, along with its line status.
WAN Statistics
In addition to WAN status and alarms, the router collects and stores various types of performance statistics. This
data helps you analyze the quality of a WAN link between the AR1202 and AR1204 router and the far-end WAN
equipment.
To display WAN statistics, use a derivative of the following command:
• display module userstats t1
Use this command to view user statistics gathered for the WAN interface.