Chapter 13
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 on page 108
M5 and M10 Router Chassis and Components on page 109
M7i Router Chassis and Components on page 109
M10i Router Chassis and Components on page 110
M20 Router Chassis and Components on page 110
M40 Router Chassis and Components on page 111
M40e Router Chassis and Components on page 112
M160 Router Chassis and Components on page 113
M320 Router Chassis and Components on page 114
T320 Router Chassis and Components on page 115
T640 Routing Node and Components on page 116
Checking the Router Chassis Component Status on page 117
1. Display the Hardware Components Installed in the Router
Chassis on page 117
show chassis hardware
2. Check the Component Environmental Status on page 118
show chassis environment
3. Check the Component Status from the Craft Interface on
page 118
show chassis craft-interface
Checking Router Alarms on page 119
1. Display Current Component Alarms on page 120
show chassis alarms
show chassis craft-interface
2. Display Component Error Messages in the System Log File
on page 121
show log messages
3. Display Component Errors in the Chassis Daemon Log File
on page 122
show log chassisd
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JUNOS Internet Software Network Operations Guide: Hardware
108
Understanding the Router Chassis
Purpose Monitor the router chassis to ensure that the installed components are operating
normally and that packets are being forwarded to their destination.
What Is a Chassis The router chassis is a rigid sheet-metal structure that houses all of the router
hardware components. For more information about the router chassis, see the
appropriate router hardware guide.
Verifying Router Component Failure on page 122
Replace the failed component with one that you know works
and