Step 1: Display Control Board Alarms

For a listing of the conditions that trigger Control Board alarms, see M320 Router Chassis Component Alarm Conditions, T320 Router Chassis Component Alarm Conditions, and T640 Routing Node Chassis Component Alarm Conditions.

Table 73 lists the Control Board alarm messages that display on the router craft interface LCD and at the CLI command line for the M320 and T320 routers and the T640 routing node.

Table 73: Control Board Alarm Messages

Component	LCD Short Version	CLI Long Version
Control Board	CB CB-number Failure	RED ALARM - CB CB-number Failure
	CB CB-number Removed	RED ALARM - CB CB-number Removed

Action

To display any active Control Board alarms, use the following CLI command:

user@host> show chassis alarms

Sample Output

user@host> show chassis alarms

1 alarms currently active

Alarm time               Class  Description

2004-01-07 17:35:03 PST  Major CB 1 Failure

What It Means

The command output displays the current FPC alarms, including the time the alarm occurred, the severity level, and the alarm description.

Alternative Actions

To check for Control Board errors, you can also look at the show chassis craft-interface CLI command output or check the LEDs on the Control Board faceplate.