Avaya X330W-2DS1, User Manual, Page: 55 / 176

Avaya X330W-2DS1 User’s Guide 33
Chapter 5
Troubleshooting
This chapter provides an explanation of how to troubleshoot operational difficulties
with the X330WAN.
Troubleshooting the X330WAN should be performed according to layers. When a
problem appears you should start isolating it by troubleshooting Layer 1 - the
controller’s alarms and errors first, then Layer 2, and finally Layer 3.
Monitoring Traffic
You can monitor the state of the X330WAN’s E1/T1 ports using the
show controllers
command. The command can be entered via the CLI. The
resulting output provides information about the state of the E1/T1 controller and
reports alarms. In addition, the output provides statistics on the state of the
controller over the last 24 hour period. To receive output for a specific port, enter
the port number after the
show controllers
command.
For information on the fields in the output from the
show controllers
command, see Chapter 7, "X330WAN CLI Commands . "
Handling E1/T1 Alarms
Alarms are reported by the LEDs on the X330WAN and via the CLI. When an alarm
condition is detected by an X330WAN, the module sends a signal to all E1/T1
devices to which it is attached. Alarms can therefore be categorized as one of the
following:
•
Local Alarm Indication - Generated by the X330WAN as a result of a line status
problem sensed by the X330WAN.
• Remote Alarm Request - Received by the X330WAN from the remote module.
The following table provides a list of alarms, the type of alarm, and the alarm
condition on the module from which the alarm originates.
Table 5.1 Alarms
Alarm (E1/T1) Alarm Type Originating Alarm
LOS/LOS Local Alarm Indicator N/A
LOF/Red Local Alarm Indicator N/A
High Ber/Major Local Alarm Indicator N/A