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Troubleshooting
6-2
9124-A2-LB20-00
March 2000
H Physical Tests
— Line Loopback
— Payload Loopback
— Repeater Loopback
— DTE Loopback
— Send Line Loopback
— Data Channel Loopbacks on a Frame Relay Link
— Send Remote Line Loopback
— Send and Monitor Pattern Tests
H IP Ping Test
H Lamp Test
Problem Indicators
The unit provides a number of indicators to alert you to possible problems:
Indicators . . . See . . .
LEDs Viewing LEDs and Control Leads and LED Descriptions in
Chapter 5, Operation and Maintenance, as well as the
user interface screen.
Main Menu →Status →
Display LEDs and Control LEDs
Health and Status Health and Status Messages in Chapter 5, Operation and
Maintenance.
Main Menu →Status →System and Test Status
Messages also appear at the bottom of any menu-driven
user interface screen.
Performance statistics Performance Statistics in Chapter 5, Operation and
Maintenance, to help you determine how long a problem
has existed.
Alarm conditions that will
generate an SNMP trap
Alarms on page 6-7.
SNMP traps Appendix B, SNMP MIBs and Traps, and RMON Alarm
Defaults.
Traps supported include warm-start, authentication-failure,
enterprise-specific (those specific to the unit), link-up, and
link-down.