Juniper JUNOS - NETWORK OPERATION GUIDE REV1 User Manual

Using the Basic Monitoring Method ! 83
Chapter 11: Understanding the Method and Tools for Monitoring Router Components
Display Error Messages in the Messages Log File
Action To display router component error messages in the messages system log file, use
the following CLI command:
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 CLI
command. This command displays the new entries in the file until you stop
monitoring by using the
monitor stop messages CLI command.
For more information about system log messages, see the JUNOS System Log
Messages Reference.
Display 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 CLI 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 CLI
command. This command displays the new entries in the file until you stop
monitoring by using the
monitor stop chassisd CLI command.

Juniper JUNOS - NETWORK OPERATION GUIDE REV1 Specifications

General

Brand	Juniper
Model	JUNOS - NETWORK OPERATION GUIDE REV1
Category	Software
Language	English