channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

Table 1 Information channels for different output destinations

Output destination	Information channel number	Default channel name
Console	0	console
Monitor terminal	1	monitor
Log host	2	loghost
Trap buffer	3	trapbuffer
Log buffer	4	logbuffer
SNMP module	5	snmpagent
Web interface	6	channel6
Log file	9	channel9

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display channel to display channel information.

If no channel is specified, the command displays information about all channels.

Examples

# Display information about channel 0.

<Sysname> display channel 0

channel number:0, channel name:console

MODU_ID NAME ENABLE LOG_LEVEL ENABLE TRAP_LEVEL ENABLE DEBUG_LEVEL

ffff0000 default Y informational Y debugging Y debugging

The output shows that the system is allowed to output log information with a severity from 0 to 4, trap information with a severity from 0 to 7, and debug information with a severity from 0 to 7 to the console. The information source modules are all modules (default).

Table 2 Command output

Field	Description
channel number	Channel number in the range 0 to 9.
channel name	Channel name. For more information, see info-center channel name.
MODU_ID	ID of the source module.
NAME	Name of the source module. "default" means all modules are allowed to output system information, but the actual modules depend on the device model.
ENABLE	Indicates whether log output is enabled, Y or N.
LOG_LEVEL	Log information severity. See Table 4 for details.
ENABLE	Indicates whether log output is enabled, Y or N.
TRAP_LEVEL	Trap information severity. See Table 4 for details.
ENABLE	Indicates whether debug output is enabled, Y or N.
DEBUG_LEVEL	Debug information severity. See Table 4 for details.

display info-center

Syntax

display info-center [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display info-center to display information center configuration information.

Examples

# Display information center configuration information.

<Sysname> display info-center

Information Center:enabled

Log host:

1.1.1.1,

port number : 514, host facility : local7,

channel number : 2, channel name : loghost

Console:

channel number : 0, channel name : console

Monitor:

channel number : 1, channel name : monitor

SNMP Agent:

channel number : 5, channel name : snmpagent

Log buffer:

enabled,max buffer size 1024, current buffer size 512,

current messages 512, dropped messages 0, overwritten messages 740

channel number : 4, channel name : logbuffer

Trap buffer:

enabled,max buffer size 1024, current buffer size 256,

current messages 216, dropped messages 0, overwritten messages 0

channel number : 3, channel name : trapbuffer

logfile:

channel number:9, channel name:channel9

syslog:

channel number:6, channel name:channel6

Information timestamp setting:

log - date, trap - date, debug - date,

loghost - date

Table 3 Command output

Field	Description
Information Center	The current state of the information center, which could be enabled or disabled.
Log host: 1.1.1.1, port number : 514, host facility : local2, channel number : 8, channel name : channel8	Configurations on the log host destination (It can be displayed only when the info-center loghost command is configured), including IP address of the log host, number of the port that receives the system information on the log host, logging facility used, and the channel number and channel name used.)
Console: channel number : 0, channel name : console	Configurations on the console destination, including the channel number and channel name used..
Monitor: channel number : 1, channel name : monitor	Configurations on the monitor terminal destination, including the channel number and channel name used.
SNMP Agent: channel number : 5, channel name : snmpagent	Configurations on the SNMP module destination, including the channel number and channel name used.
Log buffer: enabled,max buffer size 1024, current buffer size 512, current messages 512, dropped messages 0, overwritten messages 740 channel number : 4, channel name : logbuffer	Configurations on the log buffer destination, including whether information output to this destination is enabled or disabled, the maximum capacity, the current capacity, the current number of messages, the number of dropped messages, the number of messages that have been overwritten, and the channel number and channel name used.
Trap buffer: enabled,max buffer size 1024, current buffer size 256, current messages 216, dropped messages 0, overwritten messages 0 channel number : 3, channel name : trapbuffer	Configurations on the trap buffer destination, including whether information output to this destination is enabled or disabled, the maximum capacity, the current capacity, the current number of messages, the number of dropped messages, the number of messages that have been overwritten, and the channel number and channel name used.
logfile: channel number:9, channel name:channel9	Configurations on the log file destination, including the channel number, and channel name used.
syslog: channel number:6, channel name:channel6	Configurations on the web interface destination, including the channel number, and channel name used.
Information timestamp setting	The timestamp configurations, specifying the timestamp format for log, trap, debug, and log host information.

NOTE:

Only devices that support the log file feature display the related log file information after the execution of the display info-center command.

display logbuffer

Syntax

display logbuffer [ reverse ] [ level severity | size buffersize ] * [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

reverse: Displays log entries chronologically, with the most recent entry at the top. If this keyword is not specified, the log entries will be displayed chronologically, with the oldest entry at the top.

level severity: Displays log information of at least the specified level in the range of 0 to 7.

Table 4 Severity description

Severity	Value	Description	Corresponding keyword in commands
Emergency	0	The system is unusable.	emergencies
Alert	1	Action must be taken immediately.	alerts
Critical	2	Critical condition.	critical
Error	3	Error condition.	errors
Warning	4	Warning condition.	warnings
Notification	5	Normal but significant condition.	notifications
Informational	6	Informational message.	informational
Debug	7	Debugging message.	debugging

size buffersize: Specifies the number of latest log messages to be displayed, in the range of 1 to 1024. |: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display logbuffer to display the state of the log buffer and the log information in the log buffer. Without size buffersize, the command displays all log information in the log buffer.

Examples

# Display the state of the log buffer and the log information recorded.

<Sysname> display logbuffer

Logging buffer configuration and contents:enabled

Allowed max buffer size : 1024

Actual buffer size : 512

Channel number : 4 , Channel name : logbuffer

Dropped messages : 0

Overwritten messages : 718

Current messages : 512

%Jun 17 15:57:09:578 2006 Sysname IC/7/SYS_RESTART:

System restarted --

…

Table 5 Command output

Field	Description
Logging buffer configuration and contents	State of the log buffer, enabled or disabled.
Allowed max buffer size	Maximum number of messages that can be stored in the log buffer.
Actual buffer size	Actual buffer size.
Channel number	Channel number of the log buffer. The default channel number is 4.
Channel name	Channel name of the log buffer. The default channel name is logbuffer.
Dropped messages	Number of dropped messages.
Overwritten messages	Number of overwritten messages (when the buffer size is not big enough to hold all messages, the latest messages overwrite the old ones).
Current messages	Number of current messages.

display logbuffer summary

Syntax

display logbuffer summary [ level severity ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

level severity: Displays the summary of the log buffer, where severity represents information level, which ranges from 0 to 7.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display logbuffer summary to display the summary of the log buffer.

Examples

# Display the summary of the log buffer.

<Sysname> display logbuffer summary

EMERG ALERT CRIT ERROR WARN NOTIF INFO DEBUG

0 0 0 0 22 0 1 0

Table 6 Command output

Field	Description
EMERG	Represents emergency, see Table 4 for details
ALERT	Represents alert, see Table 4 for details
CRIT	Represents critical, see Table 4 for details
ERROR	Represents error, see Table 4 for details
WARN	Represents warning, see Table 4 for details
NOTIF	Represents notice, see Table 4 for details
INFO	Represents informational, see Table 4 for details
DEBUG	Represents debug, see Table 4 for details

display logfile buffer

Syntax

display logfile buffer [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display logfile buffer to display contents of the log file buffer.

The system clears the log file buffer after saving logs from the buffer to the log file automatically or manually.

NOTE:

Support for the display logfile buffer command depends on your device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Display the contents of the log file buffer.

<Sysname> display logfile buffer

%@27091414#Aug 7 08:04:02:470 2009 Sysname IFNET/4/INTERFACE UPDOWN:

Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 983040 is Up, ifAdminStatus is 1, ifOperStatus is 1

…

display logfile summary

Syntax

display logfile summary [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display logfile summary to display the configuration of the log file.

NOTE:

Support for the display logfile summary command depends on your device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Display the log file configuration.

<Sysname> display logfile summary

Log file is enabled.

Channel number : 9

Log file size quota : 10 MB

Log file directory : flash:/logfile

Writing frequency : 24 hour 0 min 10 sec

Table 7 Command output

Field	Description
Log file is	State of the log file feature, enabled or disabled.
Channel number	Log file channel number, which defaults to 9.
Log file size quota	Maximum storage space of a log file.
Log file directory	Log file directory.
Writing frequency	Log file writing frequency.

display trapbuffer

Syntax

display trapbuffer [ reverse ] [ size buffersize ] [ | { begin | exclude | include } regular-expression ]

View

Any view

Default level

1: Monitor level

Parameters

reverse: Displays trap entries chronologically, with the most recent entry at the top. If this keyword is not specified, trap entries will be displayed chronologically, with the oldest entry at the top.

size buffersize: Displays specified number of the latest trap messages in a trap buffer, where buffersize represents the number of the latest trap messages in a trap buffer, which ranges from 1 to 1,024.

|: Filters command output by specifying a regular expression. For more information about regular expressions, see Fundamentals Configuration Guide.

begin: Displays the first line that matches the specified regular expression and all lines that follow.

include: Displays all lines that match the specified regular expression.

regular-expression: Specifies a regular expression, a case-sensitive string of 1 to 256 characters.

Description

Use display trapbuffer to display the state and the trap information of the trap buffer. Without the size buffersize argument, the command displays all trap information.

Examples

# Display the state and trap information of the trap buffer.

<Sysname> display trapbuffer

Trapping buffer configuration and contents:enabled

Allowed max buffer size : 1024

Actual buffer size : 256

Channel number : 3 , channel name : trapbuffer

Dropped messages : 0

Overwritten messages : 0

Current messages : 9

#Aug 7 08:03:27:421 2009 Sysname IFNET/4/INTERFACE UPDOWN:

Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 983041 is Up, ifAdminStatus is 1, ifOperStatus is 1

#Aug 7 08:03:27:439 2009 Sysname IFNET/4/INTERFACE UPDOWN:

Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 983048 is Up, ifAdminStatus is 1, ifOperStatus is 1

#Aug 7 08:03:27:439 2009 Sysname IFNET/4/INTERFACE UPDOWN:

Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 983056 is Up, ifAdminStatus is 1, ifOperStatus is 1

#Aug 7 08:03:27:465 2009 Sysname IFNET/4/INTERFACE UPDOWN:

Trap 1.3.6.1.6.3.1.1.5.4<linkUp>: Interface 3277798 is Up, ifAdminStatus is 1, ifOperStatus is 1

#Aug 7 08:05:32:425 2009 Sysname IFNET/4/INTERFACE UPDOWN:

Trap 1.3.6.1.6.3.1.1.5.3<linkDown>: Interface 983048 is Down, ifAdminStatus is 1, ifOperStatus is 2

#Aug 7 08:39:53:302 2009 Sysname SHELL/4/LOGIN:

Trap 1.3.6.1.4.1.2011.10.2.2.1.1.3.0.1<h3cLogIn>: login from VTY

#Aug 7 08:43:25:583 2009 Sysname CFGMAN/4/TRAP:

1.3.6.1.4.1.2011.10.2.4.2.1<h3cCfgManEventlog> configure changed:

EventIndex=1,CommandSource=2,ConfigSource=4,ConfigDestination=2

Table 8 Command output

Field	Description
Trapping buffer configuration and contents	State of the trap buffer, enabled or disabled.
Allowed max buffer size	Maximum capacity of the trap buffer.
Actual buffer size	Actual capacity of the trap buffer.
Channel number	Channel number of the trap buffer, which defaults to 3.
channel name	Channel name of the trap buffer, which defaults to trapbuffer.
Dropped messages	Number of dropped messages.
Overwritten messages	Number of overwritten messages (when the buffer size is not big enough to hold all messages, the latest messages overwrite the old ones).
Current messages	Number of current messages.

enable log updown

Syntax

enable log updown

undo enable log updown

View

Interface view

Default level

2: System level

Parameters

None

Description

Use enable log updown to allow a port to generate link up/down logging information when the port state changes.

Use undo enable log updown to disable a port from generating link up/down logging information when the port state changes.

By default, all the ports are allowed to generate port link up/down logging information when the port state changes.

Examples

# Disable port GigabitEthernet 1/0/1 from generating link up/down logging information.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

[Sysname-GigabitEthernet1/0/1] undo enable log updown

info-center channel name

Syntax

info-center channel channel-number name channel-name

undo info-center channel channel-number

View

System view

Default level

2: System level

Parameters

channel-number: Specifies a channel by its number in the range of 0 to 9.

channel-name: Specifies a name for the channel, a case-insensitive string of 1 to 30 characters. It must be a combination of letters and numbers and start with a letter.

Description

Use info-center channel name to name a channel.

Use undo info-center channel to restore the default name for a channel.

See Table 1 for information about default channel names and channel numbers.

Examples

# Name channel 0 as abc.

<Sysname> system-view

[Sysname] info-center channel 0 name abc

info-center console channel

Syntax

info-center console channel { channel-number | channel-name }

undo info-center console channel

View

System view

Default level

2: System level

Parameters

channel-number: Specifies a channel by its number in the range of 0 to 9.

channel-name: Specifies a name for the channel, a case-insensitive string of 1 to 30 characters. It must be a combination of letters and numbers and start with a letter.

Description

Use info-center console channel to specify the console output channel. The system uses this channel to output information to the console.

Use undo info-center console channel to restore the default console output channel.

By default, the system output information to the console output channel through channel 0 ( console).

The info-center console channel command takes effect only after the information center is enabled with the info-center enable command.

Examples

# Specify the console output channel as channel 0.

<Sysname> system-view

[Sysname] info-center console channel 0

info-center enable

Syntax

info-center enable

undo info-center enable

View

System view

Default level

2: System level

Parameters

None

Description

Use info-center enable to enable the information center.

Use undo info-center enable to disable the information center.

The system can output information to the log host or the console only after the information center is enabled.

By default, the information center is enabled.

Examples

# Enable the information center.

<Sysname> system-view

[Sysname] info-center enable

Info: Information center is enabled.

info-center format unicom

Syntax

info-center format unicom

undo info-center format

View

System view

Default level

2: System level

Parameters

None

Description

Use info-center format unicom to set the UNICOM format for system information sent to a log host.

Use undo info-center format to restore the default.

The format for the system information sent to a log host is H3C.

System information sent to a log host has two formats: H3C and UNICOM. For more information, see Network Management and Monitoring Configuration Guide.

Examples

# Set the UNICOM format for system information sent to a log host.

<Sysname> system-view

[Sysname] info-center format unicom

info-center logbuffer

Syntax

info-center logbuffer [ channel { channel-number | channel-name } | size buffersize ] *

undo info-center logbuffer [ channel | size ]

View

System view

Default level

2: System level

Parameters

channel-number: Specifies a channel by its number in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

buffersize: Specifies the maximum number of log messages that can be stored in the log buffer. The value ranges from 0 to 1024 and defaults to 512.

Description

Use info-center logbuffer to enable information output to the log buffer and set the corresponding parameters.

Use undo info-center logbuffer to disable information output to the log buffer.

By default, the system outputs information to the log buffer through channel 4 (logbuffer) and the default buffer size is 512.

The info-center logbuffer command takes effect only after the information center is enabled with the info-center enable command.

Examples

# Output system information to the log buffer through channel 4, and set the log buffer size to 50.

<Sysname> system-view

[Sysname] info-center logbuffer size 50

info-center logfile enable

Syntax

info-center logfile enable

undo info-center logfile enable

View

System view

Default level

2: System level

Parameters

None

Description

Use info-center logfile enable to enable the log file feature.

Use undo info-center logfile enable to disable the log file feature.

By default, the log file feature is enabled.

NOTE:

Support for the info-center logfile enable command depends on your device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Enable the log file feature.

<Sysname> system-view

[Sysname] info-center logfile enable

info-center logfile frequency

Syntax

info-center logfile frequency freq-sec

undo info-center logfile frequency

View

System view

Default level

2: System level

Parameters

freq-sec: Specifies the interval for saving system information to the log file, in the range of 1 to 86400 seconds. .

Description

Use info-center logfile frequency to configure the interval for saving system information to the log file.

Use undo info-center logfile frequency to restore the default saving interval.

The default saving interval is 86400 seconds.

NOTE:

Support for the info-center logfile frequency command depends on your device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Configure the interval for saving system information to the log file as 60000 seconds.

<Sysname> system-view

[Sysname] info-center logfile frequency 60000

info-center logfile size-quota

Syntax

info-center logfile size-quota size

undo info-center logfile size-quota

View

System view

Default level

2: System level

Parameters

size: size: Specifies the maximum storage space reserved for a log file, in the range of 1 to 10 MB.

Description

Use info-center logfile size-quota to set the maximum storage space reserved for a log file.

Use undo info-center logfile size-quota to restore the default maximum storage space reserved for a log file.

By default, the storage space reserved for a log file is 2 MB.

NOTE:

Support for the info-center logfile size-quota command depends on your device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Set the maximum storage space reserved for a log file to 6 MB.

<Sysname> system-view

[Sysname] info-center logfile size-quota 6

info-center logfile switch-directory

Syntax

info-center logfile switch-directory dir-name

View

System view

Default level

2: System level

Parameters

dir-name: Specifies a directory by its name, a string of 1 to 64 characters.

Description

Use info-center logfile switch-directory to configure the directory where a log file is saved.

The specified directory must have been created.

By default, the log file is saved in the logfile directory under the root directory of the storage device.

The configuration made by the info-center logfile switch-directory command cannot survive a reboot or an active/standby switchover.

NOTE:

Support for the info-center logfile switch-directory command depends on your device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Create a directory with the name test under flash root directory.

<Sysname> mkdir test

%Created dir cfa0:/test.

# Set the directory to save the log file to cfa0:/test.

<Sysname> system-view

[Sysname] info-center logfile switch-directory cfa0:/test

info-center loghost

Syntax

info-center loghost { host-ipv4-address | ipv6 host-ipv6-address } [ port port-number ] [ channel { channel-number | channel-name } | facility local-number ] *

undo info-center loghost { host-ipv4-address | ipv6 host-ipv6-address }

View

System view

Default level

2: System level

Parameters

ipv6 host-ipv6-address: Specifies the IPv6 address of a log host.

host-ipv4-address: Specifies the IPv4 address of a log host.

port port-number: Specifies the port number of the log host, in the range of 1 to 65535. The default value is 514. It must be the same as the value configured on the log host. Otherwise, the log host cannot receive system information.

channel: Specifies the channel through which system information is output to the log host.

channel-number: Specifies a channel by its number in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

facility local-number: Specifies a logging facility from local0 to local7 for the log host. The default value is local7. Logging facilities are used to mark different logging sources, and query and filer logs.

Description

Use info-center loghost to specify a log host and to configure output parameters.

Use undo info-center loghost to restore the default.

By default, no log host is specified. If you configure this command without specifying a channel, the system specifies channel 2 (loghost) by default.

The info-center loghost command takes effect only after the information center is enabled with the info-center enable command.

Enter a correct log host IP address. The system prompts an invalid address if the loopback address 127.0.0.1 is entered.

The device supports up to four log hosts.

Examples

# Output log information to the log host 1.1.1.1.

<Sysname> system-view

[Sysname] info-center loghost 1.1.1.1

# Output log information to a log host with the IPv6 address of 1::1.

<Sysname> system-view

[Sysname] info-center loghost ipv6 1::1

info-center loghost source

Syntax

info-center loghost source interface-type interface-number

undo info-center loghost source

View

System view

Default level

2: System level

Parameters

interface-type interface-number: Specifies the egress interface for log information by the interface type and interface number.

Description

Use info-center loghost source to specify the source IP address for log information.

Use undo info-center loghost source to restore the default.

By default, the source IP address of output log information is the primary IP address of the matching route's egress interface.

The system uses the primary IP address of the specified egress interface as the source IP address of log information no matter which physical interface is used to output the log information. If you want to display the source IP address in the log information, you can configure it by using this command.

The info-center loghost source command takes effect only after the information center is enabled with the info-center enable command.

The IP address of the specified egress interface must have been configured. Otherwise, although the info-center loghost source command can be configured successfully, the log host cannot receive any log information.

Examples

When no source IP address is specified for log information, the status of interface GigabitEthernet 1/0/1 is Up. The following log information is displayed on the log host:

<187>Jul 22 05:58:06 2008 Sysname %%10IFNET/3/LINK UPDOWN(l): GigabitEthernet1/0/1 link status is UP.

# Specify the IP address of interface loopback 0 as the source IP address of log information.

<Sysname> system-view

[Sysname] interface loopback 0

[Sysname-LoopBack0] ip address 2.2.2.2 32

[Sysname-LoopBack0] quit

[Sysname] info-center loghost source loopback 0

After the above configuration, the status of interface GigabitEthernet 1/0/1 becomes up. The following log information is displayed on the log host (the -DevIP=2.2.2.2 field identifies the source IP address):

<187>Jul 22 06:11:31 2008 Sysname %%10IFNET/3/LINK UPDOWN(l):-DevIP=2.2.2.2;GigabitEthernet1/0/1 link status is UP.

info-center monitor channel

Syntax

info-center monitor channel { channel-number | channel-name }

undo info-center monitor channel

View

System view

Default level

2: System level

Parameters

channel-number: Specifies a channel by its number in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

Description

Use info-center monitor channel to configure the monitor output channel. The system uses this channel to output information to the monitor.

Use undo info-center monitor channel to restore the default monitor output channel.

By default, the system outputs information to the monitor through channel 1(monitor).

The info-center monitor channel command takes effect only after the information center is enabled with the info-center enable command.

Examples

# Output system information to the monitor through channel 0.

<Sysname> system-view

[Sysname] info-center monitor channel 0

info-center snmp channel

Syntax

info-center snmp channel { channel-number | channel-name }

undo info-center snmp channel

View

System view

Default level

2: System level

Parameters

channel-number: Specifies a channel by its number, in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see the info-center channel name command.

Description

Use info-center snmp channel to configure the SNMP output channel. The system uses this channel to output information to the SNMP module.

Use undo info-center snmp channel to restore the default SNMP output channel.

By default, the system outputs information to the SNMP module through channel 5 (snmpagent).

For more information, see the display snmp-agent command in "SNMP configuration commands."

Examples

# Output system information to the SNMP module through channel 6.

<Sysname> system-view

[Sysname] info-center snmp channel 6

info-center source

Syntax

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

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

View

System view

Default level

2: System level

Parameters

module-name: Specifies a module. For instance, to output ARP information, specify this argument as ARP. You can use the info-center source ? command to view the modules supported by the device.

default: Specifies all the modules, which can be displayed by using the info-center source ? command.

debug: Specifies debug information.

log: Specifies log information.

trap: Specifies trap information.

level severity: Specifies a severity level. For more information, see Table 4.

state state: Specifies whether to output the specified system information, on (enabled) or off (disabled).

channel-number: Specifies a channel by its number, in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

Description

Use info-center source to configure an information output rule for a module.

Use undo info-center source to remove the specified output rule.

The default output rules for the system information are listed in Table 9.

This command can be used to set the filter and redirection rules of log, trap and debugging information.

For example, the user can set to output log information with severity higher than warning to the log host, and information with severity higher than informational to the log buffer. The user can also set to output trap information of the IP module to a specified output destination.

If you do not set an output rule for a module, the module uses the default output rule or the output rule set by using the default keyword.

If you use the default keyword to set an output rule for all the modules without specifying the debug, log, and trap keywords, the default output rules for the modules are used. See Table 9 for more information.

If you use the module-name argument to set the output rule for a module without specifying the debug, log, and trap keywords, the default settings for the module are as follows: the output of log and trap information is enabled, with severity being informational. The output of debugging information is disabled, with severity being debug. For example, if you execute the command info-center source snmp channel 5, the command is actually equal to the command info-center source snmp channel 5 debug level debugging state off log level informational state on trap level informational state on.

If you repeatedly use the command to set the output rule for a module or for all the modules, the last output rule takes effect.

After you set an output rule for a module, you must use the module-name argument to modify or remove the rule. A new output rule configured by using the default keyword does not take effect for the module.

The trap buffer only receives trap information and discards log and debug information.

The log buffer only receives log and debug information and discards trap information.

The SNMP module only receives trap information and discards log and debug information.

Table 9 Default output rules for different output destinations

Output destination	Modules allowed	LOG		TRAP		DEBUG
Output destination	Modules allowed	Enabled/disabled	Severity	Enabled/disabled	Severity	Enabled/disabled	Severity
Console	default (all modules)	Enabled	Informational	Enabled	Debug	Enabled	Debug
Monitor terminal	default (all modules)	Enabled	Informational	Enabled	Debug	Enabled	Debug
Log host	default (all modules)	Enabled	Informational	Enabled	Debug	Disabled	Debug
Trap buffer	default (all modules)	Disabled	Informational	Enabled	Informational	Disabled	Debug
Log buffer	default (all modules)	Enabled	Informational	Disabled	Debug	Disabled	Debug
SNMP module	default (all modules)	Disabled	Debug	Enabled	Informational	Disabled	Debug
Log file	default (all modules)	Enabled	Debug	Enabled	Debug	Disabled	Debug

Examples

# Output VLAN module's log information with a severity level of at least emergency to the channel snmpagent. Log information of other modules cannot be output to this channel; other types of information of this module may or may not be output to this channel.

<Sysname> system-view

[Sysname] info-center source default channel snmpagent log state off

[Sysname] info-center source vlan channel snmpagent log level emergencies state on

# Output VLAN module's log information with a severity level of at least emergency to the channel snmpagent. All other system information cannot be output to this channel.

<Sysname> system-view

[Sysname] info-center source default channel snmpagent debug state off log state off trap state off

[Sysname] info-center source vlan channel snmpagent log level emergencies state on

info-center synchronous

Syntax

info-center synchronous

undo info-center synchronous

View

System view

Default level

2: System level

Parameters

None

Description

Use info-center synchronous to enable synchronous information output.

Use undo info-center synchronous to disable the synchronous information output.

By default, synchronous information output is disabled.

If system information is output before you enter information at a command line prompt, the system does not display the command line prompt after the system information output.

If system information is output when you are entering some interactive information (non Y/N confirmation information), the system displays your input in a new line after the system information output.

Examples

# Enable synchronous information output, and then execute the display interface gigabitethe command to view Ethernet interface information.

<Sysname> system-view

[Sysname] info-center synchronous

% Info-center synchronous output is on

[Sysname] display interface gigabitethe

At this time, the system receives log information. It displays the log information first, and then displays your previous input, which is display interface gigabitethe in this example.

%Apr 29 08:12:44:71 2007 Sysname IFNET/4/LINK UPDOWN:

GigabitEthernet1/0/1: link status is UP

[Sysname] display interface gigabitethe

Enter rnet to complete the display interface gigabitethernet command, and then press the Enter key to execute the command.

# Enable synchronous information output, and then save the current configuration (enter interactive information).

<Sysname> system-view

[Sysname] info-center synchronous

% Info-center synchronous output is on

[Sysname] save

The current configuration will be written to the device. Are you sure? [Y/N]:

At this time, the system receives the log information. It displays the log information first and then displays [Y/N].

%May 21 14:33:19:425 2007 Sysname SHELL/4/LOGIN: VTY login from 192.168.1.44

[Y/N]:

Enter Y or N to complete your input.

info-center syslog channel

Syntax

info-center syslog channel { channel-number | channel-name }

undo info-center syslog channel

View

System view

Default level

2: System level

Parameters

channel-number: Specifies a channel by its number, in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

Description

Use info-center syslog channel to enable the output of system information to the Web interface.

Use undo info-center syslog channel to restore the default.

The default Web output channel is channel 6.

Examples

# Output system information to the Web interface through channel 7.

<Sysname> system-view

[Sysname] info-center syslog channel 7

info-center timestamp

Syntax

info-center timestamp { debugging | log | trap } { boot | date | none }

undo info-center timestamp { debugging | log | trap }

View

System view

Default level

2: System level

Parameters

debugging: Sets the timestamp format for debugging information.

log: Sets the timestamp output format for log information.

trap: Sets the timestamp output format for trap information.

boot: Set the time stamp format as xxxxxx.yyyyyy, where xxxxxx is the most significant 32 bits (in milliseconds) and yyyyyy is the least significant 32 bits. For example, 0.21990989 equals Jun 25 14:09:26:881 2007. The boot time shows the time since system startup.

date: Set the timestamp format as "Mmm dd hh:mm:ss:sss yyyy", such as Dec 8 10:12:21:708 2007. The date time shows the current system time.

· Mmm: Abbreviations of the months in English, which could be Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, or Dec.

· dd: Date, starting with a space if it is less than 10, for example " 7".

· hh:mm:ss:sss: Local time, with hh ranging from 00 to 23, mm and ss ranging from 00 to 59, and sss ranging from 0 to 999.

· yyyy: Year.

none: Indicates no time information is provided.

Description

Use info-center timestamp to configure the timestamp format of the system information sent to all destinations except log host.

Use undo info-center timestamp to restore the default.

By default, the timestamp format of the system information sent to a log host is set by the info-center timestamp loghost command, and the format of log, trap and debugging information sent to other destinations is date.

Related commands: info-center timestamp loghost.

Examples

# Configure the timestamp format for log information as boot.

<Sysname> system-view

[Sysname] info-center timestamp log boot

At this time, if you execute the shutdown command on GigabitEthernet 1/0/1 that is in UP state, the log information generated is as follows:

%0.1382605158 Sysname IFNET/4/LINK UPDOWN:

GigabitEthernet1/0/1: link status is DOWN

# Configure the timestamp format for log information as date.

<Sysname> system-view

[Sysname] info-center timestamp log date

At this time, if you execute the shutdown command on GigabitEthernet 1/0/1 that is in UP state, the log information generated is as follows:

%Sep 29 17:19:11:188 2007 Sysname IFNET/4/LINK UPDOWN:

GigabitEthernet1/0/1: link status is DOWN

# Configure the timestamp format for log information as none.

<Sysname> system-view

[Sysname] info-center timestamp log none

At this time, if you execute the shutdown command on GigabitEthernet 1/0/1 that is in UP state, the log information generated is as follows:

% Sysname IFNET/4/LINK UPDOWN:

GigabitEthernet1/0/1: link status is DOWN

info-center timestamp loghost

Syntax

info-center timestamp loghost { date | iso | no-year-date | none }

undo info-center timestamp loghost

View

System view

Default level

2: System level

Parameters

date: Set the time stamp format as "Mmm dd hh:mm:ss:sss yyyy", such as Dec 8 10:12:21:708 2007. The date time shows the current system time.

iso: Sets the timestamp to ISO 8601 format, for example, 2009-09-21T15:32:55.

no-year-date: Sets the timestamp format as the current system date and time without year.

none: Indicates that no timestamp information is provided.

Description

Use info-center timestamp loghost to configure the timestamp format of the system information sent to the log host.

Use undo info-center timestamp loghost to restore the default.

By default, the timestamp format for system information sent to the log host is date.

Related commands: info-center timestamp.

Examples

# Configure the timestamp format for system information sent to the log host as no-year-date.

<Sysname> system-view

[Sysname] info-center timestamp loghost no-year-date

info-center trapbuffer

Syntax

info-center trapbuffer [ channel { channel-number | channel-name } | size buffersize ] *

undo info-center trapbuffer [ channel | size ]

View

System view

Default level

2: System level

Parameters

size buffersize: Specifies the maximum number of trap messages allowed in the trap buffer, in the range of 0 to 1024. The default value is 256.

channel-number: Specifies a channel by its number, in the range of 0 to 9.

channel-name: Specifies a channel by its name, a default name or a self-defined name. For how to configure a channel name, see info-center channel name.

Description

Use info-center trapbuffer to enable information output to the trap buffer and set the corresponding parameters.

Use undo info-center trapbuffer to disable information output to the trap buffer.

By default, information output to the trap buffer is enabled with channel 3 (trapbuffer) as the default channel and a maximum buffer size of 256.

The info-center trapbuffer command takes effect only after the information center is enabled with the info-center enable command.

Examples

# Output system information to the trap buffer through the default channel, and set the trap buffer size to 30.

<Sysname> system-view

[Sysname] info-center trapbuffer size 30

logfile save

Syntax

logfile save

View

Any view

Default level

2: System level

Parameters

None

Description

Use logfile save to save all the contents in the log file buffer into the log file.

By default, the system automatically saves logs from the log buffer to the log file at the interval configured by the info-center logfile frequency command. The directory for the log file can be specified by using the info-center logfile switch-directory command.

The system clears the log file buffer after saving logs from the buffer to the log file automatically or manually.

NOTE:

Support for the logfile save command depends on the device model. For more information, see About the WX Series Access Controllers Command References.

Examples

# Save logs in the log file buffer into the log file.

<Sysname> logfile save

reset logbuffer

Syntax

reset logbuffer

View

User view

Default level

3: Manage level

Parameters

None

Description

Use reset logbuffer to clear the log buffer contents.

Examples

# Clear the log buffer contents.

<Sysname> reset logbuffer

reset trapbuffer

Syntax

reset trapbuffer

View

User view

Default level

3: Manage level

Parameters

None

Description

Use reset trapbuffer to clear the trap buffer contents.

Examples

# Clear the trap buffer contents.

<Sysname> reset trapbuffer

terminal debugging

Syntax

terminal debugging

undo terminal debugging

View

User view

Default level

1: Monitor level

Parameters

None

Description

Use terminal debugging to enable the display of debugging information on the current terminal.

Use undo terminal debugging to disable the display of debugging information on the current terminal.

By default, the display of debugging information on the current terminal is disabled.

To view debug information, execute the terminal monitor and terminal debugging commands, enable the information center (enabled by default), and use a debugging command to enable the related debugging.

The configuration of this command is only valid for the current connection between the terminal and the device. If a new connection is established, the display of debugging information on the terminal restores the default.

Examples

# Enable the display of debugging information on the current terminal.

<Sysname> terminal debugging

Info: Current terminal debugging is on.

terminal logging

Syntax

terminal logging

undo terminal logging

View

User view

Default level

1: Monitor level

Parameters

None

Description

Use terminal logging to enable the display of log information on the current terminal.

Use undo terminal logging to disable the display of log information on the current terminal.

By default, the display of log information on the current terminal is enabled.

To view log information, execute the terminal monitor and terminal logging commands, and then enable the information center (enabled by default).

The configuration of this command is only valid for the current connection between the terminal and the device. If a new connection is established, the display of log information on the terminal restores the default.

Examples

# Disable the display of log information on the current terminal.

<Sysname> undo terminal logging

Info: Current terminal logging is off.

terminal monitor

Syntax

terminal monitor

undo terminal monitor

View

User view

Default level

1: Monitor level

Parameters

None

Description

Use terminal monitor to enable the monitoring of system information on the current terminal.

Use undo terminal monitor to disable the monitoring of system information on the current terminal.

By default, monitoring of system information is enabled on the console and disabled on the monitor terminal.

Configure the terminal monitor command before you can display the log, trap, and debug information.

The undo terminal monitor command automatically disables the monitoring of log, trap, and debug information.

The configuration of this command is valid for only the current connection between the terminal and the device. If a new connection is established, the monitoring of system information on the terminal restores the default.

Examples

# Enable the monitoring of system information on the current terminal.

<Sysname> terminal monitor

Info: Current terminal monitor is on.

terminal trapping

Syntax

terminal trapping

undo terminal trapping

View

User view

Default level

1: Monitor level

Parameters

None

Description

Use terminal trapping to enable the display of trap information on the current terminal.

Use undo terminal trapping to disable the display of trap information on the current terminal.

By default, the display of trap information on the current terminal is enabled.

To view the trap information, execute the terminal monitor and terminal trapping commands, and then enable the information center (enabled by default).

The configuration of this command is only valid for the current connection between the terminal and the device. If a new connection is established, the display of trap information on the terminal restores the default.

Examples

# Enable the display of trap information on the current terminal.

<Sysname> terminal trapping

Info: Current terminal trapping is on.

09-Network Management and Monitoring Command Reference

Information center configuration commands

display info-center

display logfile buffer

display logfile summary

enable log updown

info-center logfile size-quota

info-center syslog channel

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