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Information filtering by severity works this way: information with the severity value greater than the
configured threshold is not output during the filtering.
z If the threshold is set to 1, only information with the severity being emergencies will be output;
z If the threshold is set to 8, information of all severities will be output.
Ten channels and six output destinations of system information
The system supports six information output destinations, including the Console, Monitor terminal
(monitor), logbuffer, loghost, trapbuffer and SNMP.
The system supports ten channels. The channels 0 through 5 have their default channel names and are
associated with six output destinations by default. Both the channel names and the associations
between the channels and output destinations can be changed through commands.
Table 1-2 Information channels and output destinations
Information channel
number
Default channel
name
Default output destination
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 device for recording information.)
4 logbuffer
Log buffer (Receives log information, a buffer
inside the device for recording information.)
5 snmpagent SNMP NMS (Receives trap information.)
6 channel6
Not specified (Receives log, trap, and debugging
information.)
7 channel7
Not specified (Receives log, trap, and debugging
information.)
8 channel8
Not specified (Receives log, trap, and debugging
information.)
9 channel9
Not specified (Receives log, trap, and debugging
information.)
Configurations for the six output destinations function independently and take effect only after the
information center is enabled.