Juniper QFX3000-G QFabric, Deployment Manual, Page: 79 / 652

You configure system log messages by using the
host
and
file
statements at the
[edit
system syslog]
hierarchy level. Use the
show log filename
operational mode command
to view the messages.
NOTE: On the QFabric system, a syslog file named
messages
with a size of
100 MB is configured by default. If you do not configure a filename, you can
use the default filename
messages with the show log filename command.
All messages with a severity level of
notice
or higher are logged. Messages
with a facility level of
interactive-commands
on Node devices are not logged.
The QFabric system supports the following system log message features:
• The file filename and host hostname statements at the [edit system syslog] hierarchy
level are supported. Other statements at that hierarchy level are not supported.
•
You can specify the maximum amount of data that is displayed when you issue the
show log filename
command by configuring the
file filename archive maximum-file-size
statement.
• You can specify that one or more system log message servers receive messages, which
are sent to each server that is configured.
•
If you configured an alias for a device or interface, the alias is displayed in the message
for the device or interface.
• The level of detail that is included in a message depends on the facility and severity
levels that are configured. Messages include the highest level of detail available for
the configured facility and severity levels.
•
The unit of time is is measured and displayed in seconds, and not milliseconds. If you
attempt to configure the
time-format option in milliseconds, the log output displays
000 .
Starting in Junos OS Release 13.1, the QFabric system supports these additional syslog
features:
• You can filter the output of the show log filename operational mode command by
device type and device ID or device alias when you specify the device-type ( device-id |
device-alias ) optional parameters. Device types include director-device ,
infrastructure-device , interconnect-device , and node-device .
• You can specify the syslog structured data output format when you configure the
structured-data
statement at the
[edit system syslog file filename ]
and
[edit system
syslog host hostname ]
hierarchy levels.
NOTE: Information displayed in the structured data output for system logs
originating from the Director software may not be complete.
53 Copyright © 2015, Juniper Networks, Inc.
Chapter 4: Software Features