Qtech QSW-2910-09T-POE-AC/DC [138/212] Chapter 11 syslog configiration

Qtech QSW-2910-09T-POE-AC/DC [138/212] Chapter 11 syslog configiration
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138
Chapter 11 Syslog Configiration
11.1 Brief introduction of Syslog
Syslog is system information center, which handles and outputs information uniformly.
Other modules send the information to be outputted to Syslog, and Syslog confirms the form of
the outputting of the information according to user’s configuration, and outputs the information
to specified displaying devices according to the information switch and filtration rules of all
outputting directions.
Because of Syslog, information producer all modules of outputting information need not care
where the information should be send at last, console, telnet terminal or logging host (Syslog
server). They only need send information to Syslog. The information consumer console, Telnet
terminal, logging buffer, logging host and SNMP Agent can choose the information they need
and drop what they needn’t for suitable filtration rules.
Syslog information level reference:
severe level
Description
corresponded explanation
0: emergencies
the most emergent error
need reboot
1: alerts
need correct immediately
self-loop, hardware error
2: critical
key error
memory, resources distribution error
3: errors
non-key errors need
cautions
general error; invalid parameter which is
hard to restore
4: warnings
Warning for some error
which may exist
alarm; losing packet which is not
important; disconnect with the exterior
server
5: notifications
information needs cautions
Trap backup outputting
6: informational
general prompt information
command line operation log; set operation
for MIB node
7: debugging
debug information
debugging outputting; process, data of
service protocol
11.2 Syslog Configiration
Syslog configuration command includes:
Enable/disable Syslog
Syslog sequence number configuration
Syslog time stamps configuration

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