1-3
Table 1-1
Severity description
Severity
Severity value
Description
Emergency
0
The system is unusable.
Alert
1
Action must be taken immediately
Critical 2
Critical
conditions
Error 3
Error
conditions
Warning 4
Warning
conditions
Notice
5
Normal but significant condition
Informational 6
Informational messages
Debug 7
Debug-level
messages
Seven output destinations and ten channels of system information
The system supports seven information output destinations, including the console, monitor terminal
(monitor), log buffer, log host, trap buffer, SNMP module and syslog.
The system supports ten channels. The seven channels 0 through 6 are configured with channel names,
output rules, and are associated with output destinations by default. The channel names, output rules
and the associations between the channels and output destinations can be changed through
commands. Besides, you can configure channels 7, 8 and 9 without changing the default configuration
of the seven channels.
Table 1-2
Information channels and output destinations
Information
channel
number
Default
channel name
Default output destination
Description
0 console
Console
Receives log, trap and debugging
information.
1 monitor
Monitor
terminal
Receives log, trap and debugging
information, facilitating remote
maintenance.
2 loghost
Log
host
Receives log, trap and debugging
information and information will
be stored in files for future
retrieval.
3 trapbuffer
Trap
buffer
Receives trap information, a
buffer inside the router for
recording information.
4 logbuffer
Log
buffer
Receives log and debugging
information, a buffer inside the
router for recording information.
5
snmpagent
SNMP module
Receives trap information.
6 channel6
Syslog
Receives log, trap, and
debugging information.
7 channel7
Not
specified
Receives log, trap, and
debugging information.
