info-center source channel

Function

The info-center source channel command configures a rule for outputting information to a channel.

The undo info-center source channel command deletes the rules for outputting information to a channel.

The following lists the default rule for outputting information to a channel.

**Table 1** Default rule for outputting information to a channel
Output Channel	Module Enabled to Output Information	Log		Trap		Debugging Message
Output Channel	Module Enabled to Output Information	Status	Lowest Output Severity	Status	Lowest Output Severity	Status	Lowest Output Severity
0 (console)	default	on	warning	on	debugging	on	debugging
1 (remote terminal)	default	on	warning	on	debugging	on	debugging
2 (log host)	default	on	informational	on	debugging	off	debugging
3 (trap buffer)	default	off	informational	on	debugging	off	debugging
4 (log buffer)	default	on	warning	off	debugging	off	debugging
5 (SNMP agent)	default	off	debugging	on	debugging	off	debugging
6 (channel 6)	default	on	debugging	on	debugging	off	debugging
7 (channel 7)	default	on	debugging	on	debugging	off	debugging
8 (channel 8)	default	on	debugging	on	debugging	off	debugging
9 (channel 9)	default	on	debugging	on	debugging	off	debugging

Format

info-center source { module-name | default } channel { channel-number | channel-name } [ log { state { off | on } | level severity } ^* | trap { state { off | on } | level severity } ^* | debug { state { off | on } | level severity } ^* ] ^*

undo info-center source { module-name | default } channel { channel-number | channel-name }

Parameters

Parameter	Description	Value
module-name	Specifies the module name.	Enumerated type. The value depends on the registered module.
default	Indicates the default module.	-
channel-number	Specifies the number of a channel.	The value is an integer that ranges from 0 to 9.
channel-name	Specifies the name of a channel.	The value is a string of 1 to 30 case-insensitive characters. The value consists of letters or numbers and must start with a letter.
log { state { off \| on } }	Specifies the log status. off: Logs are not sent. on: Logs are sent. NOTE: This field does not take effect for diagnostic logs.	-
log { level severity }	Specifies the lowest severity of output logs. NOTE: This field does not take effect for diagnostic logs.	Logs are classified into eight severities. The following severities are listed in descending order of priority: emergencies alert critical error warning notification informational debugging
trap { state { off \| on } }	Specifies the trap status: off: Traps are not sent. on: Traps are sent.	-
trap { level severity }	Specifies the lowest severity of output traps.	Logs are classified into eight severities. The following severities are listed in descending order of priority: emergencies alert critical error warning notification informational debugging
debug { state { off \| on } }	Specifies the debugging message status. off: Debugging messages are not sent. on: Debugging messages are sent.	-
debug { level severity }	Specifies the lowest severity of output debugging messages.	Logs are classified into eight severities. The following severities are listed in descending order of priority: emergencies alert critical error warning notification informational debugging

Views

System view

Default Level

3: Management level

Usage Guidelines

Usage Scenario

To collect and query information generated on the Switch, define severities for various types of information that is output to different channels. You can run the info-center source channel command to configure a rule for outputting information to a channel.

The following lists information severities.

**Table 2** Information severities
Value	Severity	Description
0	emergencies	A fault causes the device to fail to run normally unless it is restarted. For example, the device is restarted because of program exceptions or a memory error is detected.
1	alert	A fault needs to be rectified immediately. For example, memory usage of the system reaches the upper limit.
2	critical	A fault needs to be analyzed and processed. For example, the memory usage falls below the lower threshold; temperature falls below the alarm threshold; BFD detects that a device is unreachable or detects locally generated error messages.
3	error	An improper operation is performed or exceptions occur during service processing. The fault does not affect services but needs to be analyzed. For example, users enter incorrect commands or passwords; error protocol packets are received from other devices.
4	warning	Some events or operations may affect device running or cause service processing faults, which requires full attention. For example, a routing process is disabled; BFD detects packet loss; error protocol packets are detected.
5	notification	A key operation is performed to keep the device running normally. For example, the shutdown command is run; a neighbor is discovered; protocol status changes.
6	informational	A normal operation is performed. For example, a display command is run.
7	debugging	A normal operation is performed, which requires no attention.

Precautions

Each information channel has a default record with the module name default. The default configuration for logs, traps, and debugging messages in different channels may differ.

If a module generates a large number of logs, traps, or debugging messages in a short time, use the following methods to suppress this information:

Specify level severity to adjust the channel level. Information with lower severity will be filtered.
Specify state off to disable information sent by a specified module.

After the lowest severity of output information is specified, information lower than the severity will be filtered.

Example

# Configure the device to send logs higher than or equal to warning of the CFM module.

<HUAWEI> system-view
[HUAWEI] info-center source CFM channel snmpagent log level warning