Monitoring the Router Chassis

You monitor the router to ensure that the installed components are operating normally and that packets are being received and forwarded to their destination. (See Table 30.)

Table 30: Checklist for Monitoring the Router Chassis

Monitor Chassis Tasks	Command or Action
Understanding the Router Chassis M5 and M10 Router Chassis and Components M7i Router Chassis and Components M10i Router Chassis and Components M20 Router Chassis and Components M40 Router Chassis and Components M40e Router Chassis and Components M160 Router Chassis and Components M320 Router Chassis and Components T320 Router Chassis and Components T640 Routing Node and Components
Checking the Router Chassis Component Status
Display the Hardware Components Installed in the Router Chassis	show chassis hardware
Check the Component Environmental Status	show chassis environment
Check the Component Status from the Craft Interface	show chassis craft-interface
Checking Router Alarms
Display Current Component Alarms	show chassis alarms show chassis craft-interface
Display Component Error Messages in the System Log File	show log messages
Display Component Errors in the Chassis Daemon Log File	show log chassisd
Verifying Router Component Failure	Replace the failed component with one that you know works and check its status.
Replacing a Failed Component	Locate the component serial number ID label. Obtain a Return Material Authorization (RMA) from JTAC. Pack the component and ship it. See Return the Failed Component, or follow the procedures in the appropriate router hardware guide.