user@host> show log messages
The messages system log file records the time the failure or event occurred, the severity
level, a code, and a message description. Display the error messages in the messages
system log file logged at least 5 minutes before and after the alarm event.
To search for specific information in the log file, use the | match component-name
command; for example, use show log messages | match fpc. If there is a space in the
component name, enclose the component name in quotation marks; for example,
| match “power supply”.
To search for multiple items in the log file, use the | match command followed by the
multiple items, separated by the | (pipe), and enclosed in quotation marks; for example,
| match “fpc | sfm | kernel | tnp”.
To monitor the messages file in real time, use the monitor start messages command. This
command displays the new entries in the file until you stop monitoring by using the
monitor stop messages command.
For more information about system log messages, see the Junos OS System Log Messages
Reference.
Display Error Messages in the Chassis Daemon Log File
Purpose To determine the details of the error messages in the Chassis Daemon Log File.
Action To display router component errors in the chassis daemon (chassisd) system log file,
use the following command:
user@host> show log chassisd
The chassis daemon (chassisd) log file keeps track of the state of each chassis
component.
To search for specific information in the log file, use the | match component-name
command; for example, show log messages | match fpc. If there is a space in the
component name, enclose the component name in quotation marks; for example, | match
“power supply”.
To search for multiple items in the log file, use the | match command followed by the
multiple items, separated by the | (pipe), and enclosed in quotation marks; for example,
| match “fpc | sfm | kernel | tnp”.
To monitor the chassisd file in real time, use the monitor start chassisd command. This
command displays the new entries in the file until you stop monitoring by using the
monitor stop chassisd command.
Related
Documentation
Check the Router Chassis Component Status on page 156•
113Copyright © 2012, Juniper Networks, Inc.
Chapter 3: Method and Tools for Monitoring Router Components
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