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Table 1 System information levels
Severity
Severity
value
Description
Corresponding
keyword in
commands
Emergency 0
The system is unusable. For example, the system
authorization has expired.
emergencies
Alert 1
Action must be taken immediately. For example, traffic on
an interface exceeds the upper limit.
alerts
Critical 2
Critical condition. For example, the device temperature
exceeds the upper limit, the power module fails, or the fan
tray fails.
critical
Error 3 Error condition. For example, the link state changes. errors
Warning 4
Warning condition. For example, the device is being
logged into through the Web interface, or the memory
resources are used up.
warnings
Notification 5
Normal but significant condition. For example, a terminal
logs in to the device, or the device reboots.
notifications
Information
al
6
Informational message. For example, a command or a
ping operation is executed.
informational
Debug 7 Debugging message. debugging
System information channels and output destinations
Table 2 shows the information channels and output destinations.
The system supports ten channels. By default, channels 0 through 6, and channel 9 are configured with
channel names and output destinations. You can change these default settings as needed. You can also
configure channels 7 and 8 and associate them with specific output destinations to meet your needs.
You can use the info-center channel name command to change the name of an information channel.
Each output destination receives information from only one information channel, but each information
channel can output information to multiple output destinations.
Table 2 Default information channels and output destinations
Information
channel
number
Default
channel name
Default output destination
System information received by
default
0 console Console Log, trap and debugging information
1 monitor Monitor terminal Log, trap and debugging information
2 loghost Log host Log, trap and debugging information
3 trapbuffer Trap buffer Trap information
4 logbuffer Log buffer Log information
5 snmpagent SNMP module Trap information
6 channel6 Web interface Log information
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