These commands obtain information from the chassis software process, which runs when the router is up and running. If the SCB, SSB, SFM, or FEB is not running, no information about chassis components is available through the CLI.

Table 13.3. Chassis Monitoring Commands
Information to Monitor Command Example
Chassis alarm status show chassis alarms
user@host> show chassis alarms
3 alarms are currently active
Alarm time Class Description
2000-02-07 10:12:22 UTC Major fxp0: ethernet link down
2000-02-07 10:11:54 UTC Minor YELLOW ALARM - PEM 1
2000-02-07 10:11:03 UTC Minor YELLOW ALARM - Lower
 Fan Tray Removed
Chassis clock-source ...

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