JUNOS Internet Software Network Operations Guide: Hardware
52 ! Basic Router Component Monitoring Tools
Router component LEDs Router components have faceplates with LEDs that display
the component status:
! M5 and M10 routers: PICs and power supplies
! M7i router: Compact Forwarding Engine Board (CFEB),
PICs, Fixed Interface Cards (FICs) (Fast Ethernet and Gigabit
Ethernet), and power supplies
! M10i router: CFEB, High-Availability Chassis Manager
(HCM), and power supplies
! M20 router: System and Switch Boards (SSBs) and power
supplies
! M40 router: System Control Boards (SCBs) and power
supplies
! M40e router: Switching and Forwarding Modules (SFMs),
Packet Forwarding Engine Clock Generators (PCGs),
Miscellaneous Control Subsystem (MCS), and power
supplies
! M160 router: SFMs, PCGs, MCS, and power supplies
! M320 router: SIBs, Control Boards, and power supplies
! T320 router and T640 routing node: SIBs, Control Boards,
SONET Clock Generators (SCGs), and power supplies
To display some router component LED status, use the
following CLI command:
show chassis craft-interface
messages
system log file The messages system log file records the messages generated
by component operational events, including error messages
generated by component failures. To view the
messages log
file, use the following CLI command:
show log messages
To monitor the messages log file in real time, use the
following CLI command:
monitor start messages
To stop monitoring the messages log file, use the following CLI
command:
monitor stop messages
chassisd
system log file The chassis daemon (chassisd) log file keeps track of the state
of each chassis component. To view the
chassisd log file, use
the following CLI command:
show log chassisd
To monitor the chassisd log file in real time, use the following
CLI command:
monitor start chassisd
To stop monitoring the chassisd log file, use the following CLI
command:
monitor stop chassisd
Router Component Monitor
Tool
Purpose
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