Non-default vSystems do not support some of the information center commands. For information about vSystem support for a command, see the usage guidelines on that command. For information about vSystem, see Virtual Technologies Configuration Guide.

diagnostic-logfile save

Use diagnostic-logfile save to manually save diagnostic logs from the diagnostic log file buffer to the diagnostic log file.

Syntax

diagnostic-logfile save

Views

Any view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

You can specify the directory to save the diagnostic log file by using the info-center diagnostic-logfile directory command.

The system clears the diagnostic log file buffer after saving the buffered diagnostic logs to the diagnostic log file.

If the diagnostic log file buffer is empty, this command displays a success message event though no logs are saved to the diagnostic log file.

Examples

# Manually save diagnostic logs from the diagnostic log file buffer to the diagnostic log file.

<Sysname> diagnostic-logfile save

The contents in the diagnostic log file buffer have been saved to the file flash:/diagfile/diagfile.log.

Related commands

info-center diagnostic-logfile enable

info-center diagnostic-logfile directory

display character-set

Use display character-set to display the character set encoding used on the device or the login terminal.

Syntax

display character-set [ terminal ]

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Parameters

terminal: Displays the character set encoding used on the login terminal. If you do not specify this keyword, this command displays the character set encoding used on the device. By default, the device uses the GB18030 encoding and the encoding cannot be changed.

Usage guidelines

Non-default vSystems do not support this command.

For the user' login terminal to correctly display Chinese characters in log messages received from the device, the device and the terminal must use the same character set encoding.

Use the display character-set terminal command to identify the character set encoding used on the login terminal. The device will send test characters in both UTF-8 and GB18030 encodings to the terminal. The test characters will be displayed as 中文 for the character set encoding used on the terminal.

Examples

# Display the character set encoding used on the device.

<Sysname> system-view

[Sysname] display character-set

Current character set encoding: GB18030

# Display the character set encoding used on the login terminal.

<Sysname> system-view

[Sysname] display character-set terminal

Character set Test characters

UTF-8 涓枃

GB18030 中文

Table 1 Command output

Field	Description
Current character set encoding	Character set encoding used on the device.
Character set	Character set encoding used by the device to send test strings to the terminal. Options are UTF-8 and GB18030.
Test characters	Parsing result of the test characters. The test characters will be displayed as 中文 for the character set encoding used on the login terminal.

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Related commands

info-center syslog utf-8 enable

display diagnostic-logfile summary

Use display diagnostic-logfile summary to display the diagnostic log file configuration.

Syntax

display diagnostic-logfile summary

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Display the diagnostic log file configuration.

<Sysname> display diagnostic-logfile summary

Diagnostic log file: Enabled.

Diagnostic log file size quota: 10 MB

Diagnostic log file directory: flash:/diagfile

Writing frequency: 24 hour 0 min 0 sec

Table 2 Command output

Field	Description
Diagnostic log file	Status of the diagnostic log file: · Enabled—Diagnostic logs can be output to the diagnostic log file. · Disabled—Diagnostic logs cannot be output to the diagnostic log file.
Diagnostic log file size quota	Maximum size for the diagnostic log file, in MB.
Log file directory	Directory where the diagnostic log file is saved.
Writing frequency	Interval at which the system saves diagnostic logs from the buffer to the diagnostic log file.

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display info-center

Use display info-center to display information center configuration.

Syntax

display info-center

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Display information center configuration.

<Sysname> display info-center

Information Center: Enabled

Console: Enabled

Monitor: Enabled

Log host: Enabled

192.168.0.1, log output filter: loghost1

port number: 5000, host facility: local7

Log buffer: Enabled

Max buffer size 1024, current buffer size 512,

Current messages 0, dropped messages 0, overwritten messages 0

Log file: Enabled

Security log file: Enabled

Information timestamp format:

Log host: Date

Other output destination: Date

display info-center filter

Use display info-center filter to display information about log output filters.

Syntax

display info-center filter [ filtername ]

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Parameters

filter-name: Specifies an existing log output filter by its name. If you do not specify a log output filter, this command display information about all log output filters.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Display information about log output filter loghost1.

<Sysname> display info-center filter loghost1

Log output filter: loghost1

Module Rule

ARP Debugging

CFGLOG Deny

Default Informational

Table 3 Command output

Field	Description
Log output filter:	Name of the log output filter.
Module	Module to which the log output filter applies.
Rule	Rules in the log output filter.

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Related commands

info-center filter

display info-center source

Use display info-center source to display the log output rules by source modules.

Syntax

display info-center source [ module module-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Parameters

module module-name: Specifies a module. The module-name argument is a case insensitive string that represents the complete module name. To view the names of supported modules, execute the display info-center source module ? command. If you do not specify a module, this command displays the log output rules for all modules.

Usage guidelines

Non-default vSystems do not support this command.

By default, the information center outputs logs of different modules according to the default log output rules (see Table 10). You can use the info-center source command to change the log output rules. The display info-center source command displays the current log output rules of log source modules.

Examples

# Display the current log output rules for all modules.

<Sysname> display info-center source

Module Console Monitor Loghost Logbuffer Logfile

ACL DEBUG DEBUG INFO INFO INFO

ADJ4 DEBUG DEBUG INFO INFO INFO

ADJ6 DEBUG DEBUG INFO INFO INFO

…

# Display the current log output rules for the EDEV module.

<Sysname> display info-center source module EDEV

Module Console Monitor Loghost Logbuffer Logfile

EDEV DEBUG DEBUG INFO INFO INFO

Table 4 Command output

Field	Description
Module	Module name.
Console	Lowest level of logs that can be output to the console. This field displays deny if no logs of the module can be output to the console.
Monitor	Lowest level of logs that can be output to the monitor terminal. This field displays deny if no logs of the module can be output to the monitor terminal.
Loghost	Lowest level of logs that can be output to the log host. This field displays deny if no logs of the module can be output to the log host.
Logbuffer	Lowest level of logs that can be output to the log buffer. This field displays deny if no logs of the module can be output to the log buffer.
Logfile	Lowest level of logs that can be output to the log file. This field displays deny if no logs of the module can be output to the log file.

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Related commands

info-center source

display logbuffer

Use display logbuffer to display log buffer information and buffered logs.

Syntax

In standalone mode:

display logbuffer [ vsys vsys-name ] [ module module-name [ submodule submodule-name ] ] [ reverse ] [ level severity | size buffersize | slot slot-number [ cpu cpu-number ] ] * [ last-mins mins ]

In IRF mode:

display logbuffer [ vsys vsys-name ] [ module module-name [ submodule submodule-name ] ] [ reverse ] [ level severity | size buffersize | chassis chassis-number slot slot-number [ cpu cpu-number ] ] * [ last-mins mins ]

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

vsys-admin

vsys-operator

Parameters

vsys vsys-name: Displays information for the log buffer of a vSystem. The vsys-name argument is a case-sensitive string of 1 to 31 characters. Valid characters include English letters, digits, underscores (_), and hyphens (-). Non-default vSystems do not support this parameter.

module module-name: Displays information for the log buffer of a module. The module-name argument is a case-insensitive string that represents the complete module name. To view the names of supported modules, execute the display logbuffer module ? command. If you do not specify a module, this command displays the information for the general log buffer.

submodule submodule-name: Displays log buffer information for a submodule of the specified module. The submodule--name argument is a case-insensitive string that represents the complete submodule name. To view the names of supported submodules, execute the display logbuffer module module-name submodule ? command. If you do not specify a submodule, this command displays log buffer information for all submodules of the specified module.

reverse: Displays log entries chronologically, with the most recent entry at the top. If you do not specify this keyword, the command displays log entries chronologically, with the oldest entry at the top.

level severity: Specifies a severity level in the range of 0 to 7. If you do not specify a severity level, this command displays log information for all levels.

Table 5 Log levels

Severity value	Level	Description
0	Emergency	The system is unusable. For example, the system authorization has expired.
1	Alert	Action must be taken immediately. For example, traffic on an interface exceeds the upper limit.
2	Critical	Critical condition. For example, the device temperature exceeds the upper limit, the power module fails, or the fan tray fails.
3	Error	Error condition. For example, the link state changes.
4	Warning	Warning condition. For example, an interface is disconnected, or the memory resources are used up.
5	Notification	Normal but significant condition. For example, a terminal logs in to the device, or the device reboots.
6	Informational	Informational message. For example, a command or a ping operation is executed.
7	Debugging	Debugging message.

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size buffersize: Specifies the number of latest logs to be displayed. The value range is 1 to 65535. If you do not specify this option, the command displays all logs in the log buffer.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information for all cards. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays information for all cards. (In IRF mode.)

cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.

last-mins mins: Displays logs buffered over the last specified period of time. The mins argument specifies a time period in the range of 1 to 43200 minutes. If you do not specify a time period, the command displays all logs in the log buffer.

Examples

# Display log buffer information and buffered logs.

<Sysname> display logbuffer

Log buffer: Enabled

Max buffer size: 65535

Actual buffer size: 512

Dropped messages: 0

Overwritten messages: 718

Current messages: 512

Some messages might not be displayed due to permission issues.

%Jun 17 15:57:09:578 2017 Sysname SYSLOG/7/SYS_RESTART:System restarted --

…

# Display log buffer information and logs buffered over the last 5 minutes.

<Sysname> display logbuffer last-mins 5

Log buffer: Enabled

Max buffer size: 65535

Actual buffer size: 512

Dropped messages: 0

Overwritten messages: 0

Current messages: 191

%Jan 1 01:00:06:784 2018 Sysname SHELL/6/SHELL_CMD: -Line=vty0-IPAddr=192.168.1.242-User=**; Command is display current-configuration

%Jan 1 01:03:19:691 2018 Sysname SHELL/5/SHELL_LOGIN: VTY logged in from 192.168.1.33.

%Jan 1 01:03:21:269 2018 Sysname SHELL/6/SHELL_CMD: -Line=vty1-IPAddr=192.168.1.33-User=**; Command is display logbuffer last-mins 5

Table 6 Command output

Field	Description
Log buffer	Status of the log buffer: · Enabled—Logs can be output to the log buffer. · Disabled—Logs cannot be output to the buffer.
Max buffer size	Maximum buffer size supported by the device.
Actual buffer size	Maximum buffer size configured by using the info-center logbuffer size command.
Dropped messages	Number of dropped messages.
Overwritten messages	Number of overwritten messages.
Current messages	Number of current messages.
Failed to obtain the specified data. The following tries to display all data in the log buffer.	Failed to obtain the specified data. The system tries to display all data in the log buffer.
Some messages might not be displayed due to permission issues.	The log information displayed by the display logbuffer command varies by user role. For information about user roles, see RBAC configuration in Fundamentals Configuration Guide.

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Related commands

info-center logbuffer

reset logbuffer

display logbuffer summary

Use display logbuffer summary to display the log buffer summary.

Syntax

In standalone mode:

display logbuffer summary [ level severity | slot slot-number [ cpu cpu-number ] ] *

In IRF mode:

display logbuffer summary [ level severity | chassis chassis-number slot slot-number [ cpu cpu-number ] ] *

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Parameters

level severity: Specifies a severity level in the range of 0 to 7. If you do not specify a severity level, this command displays log information of all levels in the log buffer. For more information about log levels, see Table 5.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information for all cards. (In standalone mode.)

cpu cpu-number: Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot.

Usage guidelines

Non-default vSystems do not support this command.

This command displays only the summary of the general log buffer.

Examples

# (In standalone mode.) Display the summary of the log buffer.

<Sysname> display logbuffer summary

Slot CPU EMERG ALERT CRIT ERROR WARN NOTIF INFO DEBUG

0 0 0 0 90 1 180 167 74 0

Table 7 Command output

Field	Description
EMERG	Represents emergency. For more information, see Table 5.
ALERT	Represents alert. For more information, see Table 5.
CRIT	Represents critical. For more information, see Table 5.
ERROR	Represents error. For more information, see Table 5.
WARN	Represents warning. For more information, see Table 5.
NOTIF	Represents notification. For more information, see Table 5.
INFO	Represents informational. For more information, see Table 5.
DEBUG	Represents debug. For more information, see Table 5.

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display logfile summary

Use display logfile summary to display the log file configuration.

Syntax

display logfile summary

Views

Any view

Predefined user roles

network-admin

network-operator

context-admin

context-operator

Usage guidelines

Non-default vSystems do not support this command.

This command displays only the general log file configuration.

Examples

# Display the log file configuration.

<Sysname> display logfile summary

Log file: Enabled.

Log file size quota: 10 MB

Log file directory: flash:/logfile

Writing frequency: 24 hour 0 min 10 sec

Table 8 Command output

Field	Description
Log file	Log file status: · Enabled—Logs can be output to the log file. · Disabled—Logs cannot be output to the log file.
Log file size quota	Maximum log file size, in MB.
Log file directory	Log file directory.
Writing frequency	Log file writing frequency.

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display security-logfile summary

Use display security-logfile summary to display the summary of the security log file.

Syntax

display security-logfile summary

Views

Any view

Predefined user roles

security-audit

Usage guidelines

Non-default vSystems do not support this command.

To use this command, a local user must have the security-audit user role. For information about configuring the security-audit user role, see AAA commands in Security Command Reference.

Examples

# Display the summary of the security log file.

<Sysname> display security-logfile summary

Security log file: Enabled

Security log file size quota: 10 MB

Security log file directory: flash:/seclog

Alarm threshold: 80%

Current usage: 30%

Writing frequency: 24 hour 0 min 0 sec

Table 9 Command output

Field	Description
Security log file	Status of the security log file: · Enabled—Security logs can be output to the security log file. · Disabled—Security logs cannot be output to the security log file.
Security log file size quota	Maximum storage space reserved for the security log file.
Security log file directory	Security log file directory.
Alarm threshold	Alarm threshold of the security log file usage.
Current usage	Current usage of the security log file.
Writing frequency	Security log file writing frequency.

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Related commands

authorization-attribute (Security Command Reference)

enable log updown

Use enable log updown to enable an interface to generate link up or link down logs when the interface state changes.

Use undo enable log updown to disable an interface from generating link up or link down logs when the interface state changes.

Syntax

enable log updown

undo enable log updown

Default

All interfaces are allowed to generate link up and link down logs.

Views

Interface view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Disable GigabitEthernet 1/0/1 from generating link up or link down logs.

<Sysname> system-view

[Sysname] interface gigabitethernet 1/0/1

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

info-center diagnostic-logfile directory

Use info-center diagnostic-logfile directory to configure the directory to save the diagnostic log file.

Syntax

info-center diagnostic-logfile directory dir-name

Default

The diagnostic log file is saved in the diagfile folder under the root directory of the default file system.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

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

Usage guidelines

Non-default vSystems do not support this command.

The specified directory must have been created.

(In standalone mode.) This command cannot survive a reboot or an active/standby switchover.

(In IRF mode.) This command cannot survive an IRF reboot or a global active/standby switchover in an IRF fabric.

Examples

# Set the diagnostic log file directory to flash:/test.

<Sysname> mkdir test

Creating directory flash:/test... Done.

<Sysname> system-view

[Sysname] info-center diagnostic-logfile directory flash:/test

info-center diagnostic-logfile enable

Use info-center diagnostic-logfile enable to enable saving of diagnostic logs to the diagnostic log file.

Use undo info-center diagnostic-logfile enable to disable saving of diagnostic logs to the diagnostic log file.

Syntax

info-center diagnostic-logfile enable

undo info-center diagnostic-logfile enable

Default

Saving of diagnostic logs to the diagnostic log file is enabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

This command enables saving diagnostic logs to the diagnostic log file for centralized management. You can view the diagnostic logs to monitor device activities and to troubleshoot problems.

Examples

# Enable saving diagnostic logs to the diagnostic log file.

<Sysname> system-view

[Sysname] info-center diagnostic-logfile enable

info-center diagnostic-logfile frequency

Use info-center diagnostic-logfile frequency to configure the interval at which the system saves diagnostic logs from the diagnostic log file buffer to the diagnostic log file.

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

Syntax

info-center diagnostic-logfile frequency freq-sec

undo info-center diagnostic-logfile frequency

Default

The diagnostic log file saving interval is 86400 seconds.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

freq-sec: Specifies the diagnostic log file saving interval in seconds. The value range is 10 to 86400.

Usage guidelines

Non-default vSystems do not support this command.

The system outputs diagnostic logs to the diagnostic log file buffer, and then saves the buffered logs to the diagnostic log file at the specified interval.

Examples

# Set the diagnostic log file saving interval to 600 seconds.

<Sysname> system-view

[Sysname] info-center diagnostic-logfile frequency 600

Related commands

info-center diagnostic-logfile enable

info-center diagnostic-logfile quota

Use info-center diagnostic-logfile quota to set the maximum size for the diagnostic log file.

Use undo info-center diagnostic-logfile quota to restore the default.

Syntax

info-center diagnostic-logfile quota size

undo info-center diagnostic-logfile quota

Default

The maximum size for the diagnostic log file is 10 MB.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

size: Specifies the maximum size for the diagnostic log file, in MB. The value range is 1 to 10.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Set the maximum size to 6 MB for the diagnostic log file.

<Sysname> system-view

[Sysname] info-center diagnostic-logfile quota 6

info-center enable

Use info-center enable to enable the information center.

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

Syntax

info-center enable

undo info-center enable

Default

The information center is enabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Enable the information center.

<Sysname> system-view

[Sysname] info-center enable

Information center is enabled.

info-center filter

Use info-center filter to create a log output filter.

Use undo info-center filter to delete a log output filter.

Syntax

info-center filter filter-name { module-name | default } { deny | level severity }

undo info-center filter filter-name [ module-name | default ]

Default

No log output filters exist.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

filter-name: Specifies a name for the log output filter, a case-insensitive string of 1 to 8 characters.

module-name: Specifies a module by its name. To view the names of supported modules, execute the info-center filter filter-name ? command.

default: Specifies all supported modules.

deny: Disables log output.

level severity: Specifies a log severity level by its name. Supported severity levels are alert, critical, debugging, emergency, error, informational, notification, and warning. See Table 5 for more information about the log severity levels. The log output filter applies to logs of the specified severity level and all higher levels.

Usage guidelines

Non-default vSystems do not support this command.

A log output filter contains a set of log output filter rules for modules. You can create multiple log output filters. When specifying a log host, you can apply a log output filter to control log output to the log host.

You can also use the info-center source command to configure log output rules for the log host output destination. The system chooses the settings to control log output to a log host in the following order:

1. Log output filter specified for the log host by using the info-center loghost command.

2. Log output rules configured for the log host output destination by using the info-center source command.

3. Default log output rules (see Table 10).

Follow these restrictions and guidelines when you configure a log output filter:

· To set a log output filter rule for a module, use the module-name argument to specify the module name.

If you set log output filter rules for the same module multiple times, the most recent configuration takes effect.

· To set a general log output filter rule for all modules, use the default keyword. The general log output filter rule applies to all modules that do not have module-specific filter rules.

If you set a general log output filter rule multiple times, the most recent configuration takes effect.

· If no general log output filter rule is set, the system outputs logs with severity levels informational through alert for modules that do not have module-specific filter rules.

· To remove a module-specific log output filter rule, you must use the module-name argument. You cannot use the default keyword to remove module-specific log output filter rules. If you do not specify any parameters, the entire log output filter is deleted.

Examples

# Create log output filter loghost1. In the log output filter, enable the ARP module to output logs with severity levels notification through alert, enable the SNMP module to output logs with severity levels warning through alert, and disable log output of all other modules.

<Sysname> system-view

[Sysname] info-center filter loghost1 arp level notification

[Sysname] info-center filter loghost1 snmp level warning

[Sysname] info-center filter loghost1 default deny

Related commands

display info-center filter

info-center loghost

info-center source

info-center format

Use info-center format to set the format for logs sent to log hosts.

Use undo info-center format to restore the default.

Syntax

info-center format { cmcc | rfc5424 | unicom }

undo info-center format

Default

Logs are sent to log hosts in non-customized format.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

cmcc: Specifies the China Mobile Communications Corporation (CMCC) format.

rfc5424: Specifies the RFC 5424 format.

unicom: Specifies the China Unicom format.

Usage guidelines

Non-default vSystems do not support this command.

Logs can be sent to log hosts in non-customized, China Unicom, CMCC, or RFC 5424 format.For more information about log formats, see information center configuration in Network Management and Monitoring Configuration Guide.

The format specified by the info-center format command applies to all log hosts and that specified by the info-center loghost command applies to the specified log hosts. For a log host, the format specified by the info-center loghost command takes precedence over the format specified by the info-center format command.

Examples

# Set the log format to RFC 5424 for logs sent to log hosts.

<Sysname> system-view

[Sysname] info-center format rfc5424

Related commands

info-center loghost

info-center logbuffer

Use info-center logbuffer to enable log output to the log buffer.

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

Syntax

info-center logbuffer

undo info-center logbuffer

Default

Log output to the log buffer is enabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

This command enables log output to log buffers based on the log source modules.

· Logs generated by modules or submodules that have separate log buffers are saved to their respective log buffers.

For example, session logs are saved to the session log buffer.

· Logs generated by other modules are saved to the general log buffer.

To view log buffer information and buffered logs, use the display logbuffer command.

To set the log buffer size, use the info-center logbuffer size command.

Examples

# Enable log output to the log buffer.

<Sysname> system-view

[Sysname] info-center logbuffer

Related commands

display logbuffer

info-center enable

info-center logbuffer reserved-size

Use info-center logbuffer reserved-size to specify the log buffer size reserved for the non-default vSystems.

Use undo info-center logbuffer reserved-size to restore the default.

Syntax

info-center logbuffer reserved-size reserved-size-value

undo info-center logbuffer reserved-size

Default

All non-default vSystems share and preempt the non-default vSystem log buffer resources.

Views

vSystem view

Predefined user roles

network-admin

Parameters

reserved-size-value: Specifies the log buffer size reserved for the non-default vSystems. The value range is 1 to 32767.

Usage guidelines

The saving of the vSystem logs varies by vSystem log type.

· Default vSystem logs are saved in the default vSystem log buffer. You can execute the info-center logbuffer size command to set the default vSystem log buffer size.

· Non-default vSystem logs are saved in the non-default vSystem log buffer. By default, all non-default vSystems share and preempt the non-default vSystem log buffer resources.

This command enables you to reserve a log buffer size for the specified non-default vSystems. When saving the non-default vSystem logs, the shared log buffer resources take precedence over the reserved log buffer resources. When the shared log buffer resources are insufficient, only the vSystems configured with this command can use the reserved log buffer resources. The logs of the vSystems that are configured without this command will be discarded.

Examples

# Reserve 100 logs that can be buffered for vSystem vsys1.

<sysname> system-view

[sysname] vsys vsys1

[sysname-vsys-1-vsys1] info-center logbuffer reserved-size 100

info-center logbuffer size

Use info-center logbuffer size to set the maximum number of logs that can be buffered.

Use undo info-center logbuffer size to restore the default.

Syntax

info-center logbuffer [ module module-name ] size buffersize

undo info-center logbuffer [ module module-name ] size

Default

A maximum of 512 logs can be buffered.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

module module-name: Sets the size for the log buffer of a module. The module-name argument is a case-insensitive string that represents the complete module name. To view the names of supported modules, execute the info-center logbuffer module ? command. If you do not specify a module, this command sets the size for the general log buffer.

buffersize: Specifies the maximum log buffer size. The value range is 0 to 65535.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Set the maximum log buffer size to 50.

<Sysname> system-view

[Sysname] info-center logbuffer size 50

# Restore the default maximum log buffer size.

<Sysname> system-view

[Sysname] undo info-center logbuffer size

Related commands

display logbuffer

info-center enable

info-center logfile directory

Use info-center logfile directory to specify the directory to save the log file.

Syntax

info-center logfile directory dir-name

Default

The log file is saved in the logfile folder under the root directory of the default file system.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

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

Usage guidelines

Non-default vSystems do not support this command.

The specified log file directory must have been created.

The log file uses the .log extension.

(In standalone mode.) This command cannot survive a reboot or an active/standby switchover.

(In IRF mode.) This command cannot survive an IRF reboot or a global active/standby switchover in an IRF fabric.

Examples

# Set the log file directory to flash:/test.

<Sysname> mkdir test

Creating directory flash:/test... Done.

<Sysname> system-view

[Sysname] info-center logfile directory flash:/test

Related commands

info-center logfile enable

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

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

Syntax

info-center logfile enable

undo info-center logfile enable

Default

The log file feature is enabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

After you configure this command, the system outputs logs to log files according to the log source modules.

· Logs generated by modules or submodules that have separate log files are output to their respective log files.

For example, session logs are output to the log file named session.log.

The modules and submodules that have separate log files are predefined and they cannot be changed.

· Logs generated by other modules are output to the general log file.

Examples

# Enable log output to the log file.

<Sysname> system-view

[Sysname] info-center logfile enable

info-center logfile frequency

Use info-center logfile frequency to configure the interval at which the system saves logs from the log file buffer to the log file.

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

Syntax

info-center logfile frequency freq-sec

undo info-center logfile frequency

Default

The log file saving interval is 86400 seconds.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

freq-sec: Specifies the log file saving interval in seconds. The value range is 1 to 86400.

Usage guidelines

Non-default vSystems do not support this command.

This command enables the system to automatically save logs in the log file buffer to the log file at the specified interval.

Examples

# Set the log file saving interval to 60000 seconds.

<Sysname> system-view

[Sysname] info-center logfile frequency 60000

Related commands

info-center logfile enable

info-center logfile module alarm-threshold

Use info-center logfile module alarm-threshold to set the log file usage alarm threshold for a module.

Use undo info-center logfile module alarm-threshold to restore the default.

Syntax

info-center logfile module module-name alarm-threshold usage

undo info-center logfile module module-name alarm-threshold

Default

The log file usage alarm threshold is 80% of the log file size. When the log file usage ratio of a module reaches 80%, the system outputs a message to inform the user.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

usage: Specifies an alarm threshold in percentage in the range of 0 to 100. Set the value to 0 to disable the log file usage alarm feature.

Usage guidelines

Non-default vSystems do not support this command.

After you set the alarm threshold for the log file usage of a module, the system outputs a message to inform the user when the threshold is reached. The user can then back up the log file to avoid loss of log data.

Examples

# Set the log file usage alarm threshold to 90% of the log file size for the ATK module.

<Sysname> system-view

[Sysname] info-center logfile module ATK alarm-threshold 90

info-center logging suppress duplicates

Use info-center logging suppress duplicates to enable duplicate log suppression.

Use undo info-center logging suppress duplicates to disable duplicate log suppression.

Syntax

info-center logging suppress duplicates

undo info-center logging suppress duplicates

Default

Duplicate log suppression is disabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

Outputting consecutive duplicate logs wastes system and network resources and increases device maintenance costs. You can enable this feature to suppress output of consecutive duplicate logs.

Examples

# Enable duplicate log suppression on device A.

<Sysname> system-view

[Sysname] info-center logging suppress duplicates

info-center logging suppress module

Use info-center logging suppress module to configure a log suppression rule for a module.

Use undo info-center logging suppress module to delete a log suppression rule.

Syntax

info-center logging suppress module module-name mnemonic { all | mnemonic-value }

undo info-center logging suppress module module-name mnemonic { all | mnemonic-value }

Default

The device does not suppress output of any logs from any modules.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

module-name: Specifies a log source module by its name, a case-insensitive string of 1 to 8 characters. To view the list of available log source modules, use the info-center logging suppress module ? command.

mnemonic { all | mnemonic-value }: Configures a mnemonic filter for log suppression.

· all: Suppresses output of all logs of the module.

· mnemonic-value: Suppresses output of logs with the specified mnemonic value. The mnemonic-value argument is a case-insensitive string of 1 to 32 characters, which must be the complete value contained in the mnemonic field of the log message. Log suppression will fail if a partial mnemonic value is specified.

Usage guidelines

Non-default vSystems do not support this command.

You can configure log suppression rules to filter out the logs that you are not concerned with. A log suppression rule suppresses output of all logs or only logs with a specific mnemonic value for a module.

Examples

# Configure a log suppression rule to suppress output of logs with the shell_login mnemonic value for the shell module.

<Sysname> system-view

[Sysname] info-center logging suppress module shell mnemonic shell_login

Related commands

info-center source

info-center loghost

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

Use undo info-center loghost to remove a log host.

Syntax

Default vSystem:

info-center loghost [ vpn-instance vpn-instance-name ] { hostname | ipv4-address | ipv6 ipv6-address } [ facility local-number | filter filter-name | format { cmcc | default | rfc5424 | unicom } | port port-number | source-ip source-ip-address ] *

undo info-center loghost [ vpn-instance vpn-instance-name ] { hostname | ipv4-address | ipv6 ipv6-address }

Non-default vSystem:

info-center loghost { ipv4-address | ipv6 ipv6-address } [ port port-number ]

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

Default

No log hosts are specified.

Views

System view

Predefined user roles

network-admin

context-admin

vsys-admin

Parameters

vpn-instance vpn-instance-name: Specifies an MPLS L3VPN instance by its name, a case-sensitive string of 1 to 31 characters. If the log host is on the public network, do not specify this option.

hostname: Specifies a log host by its name, a case-insensitive string of 1 to 253 characters. The host name can contain letters, digits, and special characters including hyphen (-), underscore (_), and dot (.).

ipv4-address: Specifies a log host by its IPv4 address.

ipv6 ipv6-address: Specifies a log host by its IPv6 address.

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.

filter filter-name: Specifies a log output filter to control log output to the log host. The filter-name argument represents the filter name, a case-insensitive string of 1 to 8 characters. If you do not specify a log output filter, the log output rules configured by using the info-center source command for the log host destination are used.

format { cmcc | default | rfc5424 | unicom }: Specifies a format for logs sent to log hosts. If you do not specify this keyword, the format specified by the info-center format command is used.

· cmcc: Specifies the China Mobile Communications Corporation (CMCC) format.

· default: Specifies the non-customized format.

· rfc5424: Specifies the RFC 5424 format.

· unicom: Specifies the China Unicom format.

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

source-ip source-ip-address: Specifies the source IP address for logs sent to the specified log hosts. If you do not specify this option, the source IP address specified by the info-center loghost source command is used.

Usage guidelines

After logging in to a vSystem, you can execute this command to output the logs of the vSystem to the specified log hosts.

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

Examples

# Output logs to the log host at 1.1.1.1.

<Sysname> system-view

[Sysname] info-center loghost 1.1.1.1

Related commands

info-center filter

info-center format

info-center source

info-center loghost locate-info with-sn

Use info-center loghost locate-info with-sn to add the device serial number to the location field of logs sent to log hosts.

Use undo info-center loghost locate-info with-sn to restore the default.

Syntax

info-center loghost locate-info with-sn

undo info-center loghost locate-info with-sn

Default

The device does not add the device serial number to the location field of logs sent to log hosts.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Add the device serial number to the location field of logs sent to log hosts.

<Sysname> system-view

[Sysname] info-center loghost locate-info with-sn

info-center loghost source

Use info-center loghost source to specify a source IP address for logs sent to log hosts.

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

Syntax

info-center loghost source interface-type interface-number

undo info-center loghost source

Default

The source IP address of logs sent to log hosts is the primary IP address of the outgoing interface.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

interface-type interface-number: Specifies an interface by its type and number.

Usage guidelines

Non-default vSystems do not support this command.

The system uses the primary IP address of the specified interface as the source IP address of the logs sent to log hosts.

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

The source IP address specified by the info-center loghost source command applies to all log hosts and that specified by the info-center loghost command applies to the specified log hosts. For a log host, the source IP address specified by the info-center loghost command takes precedence over that specified by the info-center loghost source command.

Examples

# Use the IP address of interface Loopback 0 as the source IP address of the logs sent to log hosts.

<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

Related commands

info-center loghost

info-center loghost vsys-to-admin enable

Use info-center loghost vsys-to-admin enable to enable outputting the logs of non-default vSystems to log hosts specified on the default vSystem.

Use undo info-center loghost vsys-to-admin enable to restore the default.

Syntax

info-center loghost vsys-to-admin enable

undo info-center loghost vsys-to-admin enable

Default

The non-default vSystem logs will not be output to the log hosts specified on the default vSystem.

views

System view

Predefined user roles

network-admin

Usage guidelines

Non-default vSystems do not support this command.

You can specify log hosts for the default vSystem and non-default vSystems, thus the default vSystem logs and non-default vSystem logs can be output to their respective log hosts. After configuring log hosts for the default vSystem, you can execute this command to enable outputting the logs of non-default vSystems to the logs hosts specified on the default vSystem. Thus, you do not need to log in to each non-default vSystem to specify the log hosts.

Examples

# Enable outputting the logs of non-default vSystems to log hosts specified on the default vSystem.

<vsys-aaa> system-view

[Sysname] info-center loghost vsys-to-admin enable

Related commands

info-center loghost

info-center security-logfile alarm-threshold

Use info-center security-logfile alarm-threshold to set the alarm threshold for security log file usage.

Use undo info-center security-logfile alarm-threshold to restore the default.

Syntax

info-center security-logfile alarm-threshold usage

undo info-center security-logfile alarm-threshold

Default

The alarm threshold for security log file usage is 80. When the usage of the security log file reaches 80%, the system outputs a message to inform the administrator.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

usage: Specifies an alarm threshold. The value must be an integer in the range of 1 to 100.

Usage guidelines

Non-default vSystems do not support this command.

When the security log file is full, the system deletes the oldest logs and then writes new logs to the security log file. This feature helps avoid security log loss by setting an alarm threshold for the security log file usage. When the threshold is reached, the system outputs log information to inform the administrator. The administrator can log in to the device with the security-audit user role and back up the security log file.

Examples

# Set the alarm threshold for security log file usage to 90.

<Sysname> system-view

[Sysname] info-center security-logfile alarm-threshold 90

Related commands

info-center security-logfile size-quota

info-center security-logfile directory

Use info-center security-logfile directory to specify the security log file directory.

Syntax

info-center security-logfile directory dir-name

Default

The security log file is saved in the seclog folder under the root directory of the default file system.

Views

System view

Predefined user roles

security-audit

Parameters

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

Usage guidelines

Non-default vSystems do not support this command.

The specified directory must have been created.

To use this command, a local user must have the security-audit user role.

(In standalone mode.) This command cannot survive a reboot or an active/standby switchover.

(In IRF mode.) This command cannot survive an IRF reboot or a global active/standby switchover in an IRF fabric.

Examples

# Set the security log file directory to flash:/test.

<Sysname> mkdir test

Creating directory flash:/test... Done.

<Sysname> system-view

[Sysname] info-center security-logfile directory flash:/test

info-center security-logfile enable

Use info-center security-logfile enable to enable saving of security logs to the security log file.

Use undo info-center security-logfile enable to restore the default.

Syntax

info-center security-logfile enable

undo info-center security-logfile enable

Default

Saving of security logs to the security log file is disabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

This feature enables the system to output security logs to the security log file buffer, and then saves the buffered logs to the security log file regularly.

Examples

# Enable saving security logs to the security log file.

<Sysname> system-view

[Sysname] info-center security-logfile enable

info-center security-logfile frequency

Use info-center security-logfile frequency to configure the interval for saving security logs to the security log file.

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

Syntax

info-center security-logfile frequency freq-sec

undo info-center security-logfile frequency

Default

The security log file saving interval is 86400 seconds.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

freq-sec: Specifies the security log file saving interval in seconds. The value range is 10 to 86400 seconds.

Usage guidelines

Non-default vSystems do not support this command.

The system outputs security logs to the security log file buffer, and then saves the buffered logs to the security log file at the specified interval.

Examples

# Set the security log file saving interval to 600 seconds.

<Sysname> system-view

[Sysname] info-center security-logfile frequency 600

Related commands

info-center security-logfile enable

info-center security-logfile size-quota

Use info-center security-logfile size-quota to set the maximum size for the security log file.

Use undo info-center security-logfile size-quota to restore the default.

Syntax

info-center security-logfile size-quota size

undo info-center security-logfile size-quota

Default

The maximum size for the security log file is 10 MB.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

size: Sets the maximum size for the security log file, in MB. The value range is 1 to 10.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Set the maximum size to 6 MB for the security log file.

<Sysname> system-view

[Sysname] info-center security-logfile size-quota 6

Related commands

info-center security-logfile alarm-threshold

info-center source

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

Use undo info-center source to restore the default.

Syntax

info-center source { module-name | default } { console | logbuffer | logfile | loghost | monitor } { deny | level severity }

undo info-center source { module-name | default } { console | logbuffer | logfile | loghost | monitor }

Default

Table 10 lists the default log output rules.

Table 10 Default output rules

Destination	Log source modules	Output switch	Severity
Console	All supported modules	Enabled	Debugging
Monitor terminal	All supported modules	Disabled	Debugging
Log host	All supported modules	Enabled	Informational
Log buffer	All supported modules	Enabled	Informational
Log file	All supported modules	Enabled	Informational

‌

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

module-name: Specifies a module by its name. You can use the info-center source ? command to view the modules supported by the device.

default: Specifies all supported modules.

console: Outputs logs to the console.

logbuffer: Outputs logs to the log buffer.

logfile: Outputs logs to the log file.

loghost: Outputs logs to the log host.

monitor: Outputs logs to the monitor terminal.

deny: Disables log output.

Usage guidelines

Non-default vSystems do not support this command.

If you do not set an output rule for a module, the module uses the output rule set by using the default keyword. If no rule is set by using the default keyword, the module uses the default output rule.

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

If you execute this command for a module multiple times, the most recent configuration takes effect.

If you execute this command for the default modules multiple times, the most recent configuration takes effect.

Examples

# Output only VLAN module's information with the emergency level to the console.

<Sysname> system-view

[Sysname] info-center source default console deny

[Sysname] info-center source vlan console level emergency

# Based on the previous configuration, disable output of VLAN module's information to the console so no system information is output to the console.

<Sysname> system-view

[Sysname] undo info-center source vlan console

info-center synchronous

Use info-center synchronous to enable synchronous information output.

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

Syntax

info-center synchronous

undo info-center synchronous

Default

Synchronous information output is disabled.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

System log output interrupts ongoing configuration operations, including obscuring previously entered commands. Synchronous information output shows the obscured commands. It also provides a command prompt in command editing mode, or a [Y/N] string in interaction mode so you can continue your operation from where you were stopped.

Examples

# Enable synchronous information output, and then execute the display current-configuration command to view the current configuration of the device.

<Sysname> system-view

[Sysname] info-center synchronous

Info-center synchronous output is on

[Sysname] display current-

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

%May 21 14:33:19:425 2007 Sysname SHELL/5/SHELL_LOGIN: VTY logged in from 192.168.1.44

[Sysname] display current-

Enter configuration to complete the display current-configuration command, and 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/5/SHELL_LOGIN: VTY logged in from 192.168.1.44

[Y/N]:

Enter Y or N to complete your input.

info-center syslog min-age

Use info-center syslog min-age to set the minimum storage period.

Use undo info-center syslog min-age to restore the default.

Syntax

info-center syslog [ module module-name ] min-age min-age

undo info-center syslog [ module module-name ] min-age

Default

The minimum storage period is not set.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

module module-name: Sets the minimum storage period for logs in the log file and log buffer of a module. The module-name argument is a case-insensitive string that represents the complete module name. To view the names of supported modules, execute the info-center syslog module ? command. If you do not specify a module, this command sets the minimum storage period for the general log files and logs in the general log buffer.

min-age: Sets the minimum storage period in hours. The value range is 1 to 8760.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Set the minimum storage period to 168 hours.

<Sysname> system-view

[Sysname] info-center syslog min-age 168

info-center syslog trap buffersize

Use info-center syslog trap buffersize to set the maximum number of log traps that can be stored in the log trap buffer.

Use undo info-center syslog trap buffersize to restore the default.

Syntax

info-center syslog trap buffersize buffersize

undo info-center syslog trap buffersize

Default

The log trap buffer can store a maximum of 1024 traps.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

buffersize: Specifies the maximum number of log traps that can be stored in the log trap buffer. The value range is 0 to 65535. Value 0 indicates that the device does not buffer log traps.

Usage guidelines

Non-default vSystems do not support this command.

Log traps are SNMP notifications stored in the log trap buffer. After the snmp-agent trap enable syslog command is configured, the device sends log messages in SNMP notifications to the log trap buffer. You can view the log traps by accessing the MIB corresponding to the trap buffer.

The default buffer size is usually used. You can adjust the buffer size according to your network condition. New traps overwrite the oldest traps when the log trap buffer is full.

Examples

# Set the log trap buffer size to 2048.

<Sysname> system-view

[Sysname] info-center syslog trap buffersize 2048

Related commands

snmp-agent trap enable syslog

info-center syslog utf-8 enable

Use info-center syslog utf-8 enable to enable the information center to use the UTF-8 encoding.

Use undo info-center syslog utf-8 enable to restore the default.

Syntax

info-center syslog utf-8 enable

undo info-center syslog utf-8 enable

Default

The information center uses the GB18030 encoding.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

For the user' login terminal to correctly display Chinese characters in log messages received from the information center, the information center and the terminal must use the same character set encoding.

The information center supports both GB18030 and UTF-8 encodings. By default, the GB18030 encoding is used.

If the login terminal uses the UTF-8 encoding, you can use this command to enable the information center to use the UTF-8 encoding.

Examples

# Enable the information center to use the UTF-8 encoding.

<Sysname> system-view

[Sysname] info-center syslog utf-8 enable

Related commands

display character-set

info-center timestamp

Use info-center timestamp to set the timestamp format for logs sent to the console, monitor terminal, log buffer, and log file.

Use undo info-center timestamp to restore the default.

Syntax

info-center timestamp { boot | date | none }

undo info-center timestamp

Default

The timestamp format for logs sent to the console, monitor terminal, log buffer, and log file is date.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

boot: Sets the timestamp format to xxx.yyy, where xxx is the most significant 32 bits (in milliseconds) and yyy 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: Sets the timestamp format to MMM DD hh:mm:ss:ms 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:ms: Local time, with hh in the range of 00 to 23, mm and ss in the range of 00 to 59, and ms in the range of 0 to 999.

· YYYY: Year.

none: Indicates no time information is provided.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Set the timestamp format to boot for logs sent to the console, monitor terminal, log buffer, and log file.

<Sysname> system-view

[Sysname] info-center timestamp boot

Related commands

info-center timestamp loghost

Use info-center timestamp loghost to set the timestamp format for logs sent to log hosts.

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

Syntax

info-center timestamp loghost { date [ with-milliseconds ] | iso [ with-milliseconds ] | no-year-date | none }

undo info-center timestamp loghost

Default

The timestamp format for logs sent to log hosts is date.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

date: Sets the timestamp format to mmm dd hh:mm:ss yyyy, such as Dec 8 10:12:21 2007. The date time shows the current system time.

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

with-milliseconds: Sets the timestamp to be accurate to milliseconds for logs output to log hosts in date or ISO 8601 format. The millisecond value is appended to the time information in the timestamp with a dot as the separator. If you do not specify this keyword, the timestamp in date or ISO 8601 format is accurate to seconds.

· Example of a timestamp in date format with millisecond accuracy: Dec 8 10:12:21.708 2018.

· Example of a timestamp in ISO 8601 format with millisecond accuracy: 2018-09-21T15:32:55.708.

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

none: Indicates that no timestamp information is provided.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Set the timestamp format to no-year-date for logs sent to log hosts.

<Sysname> system-view

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

Related commands

info-center timestamp

logfile save

Use logfile save to manually save logs in the log file buffer to the log file.

Syntax

logfile save

Views

Any view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

You can specify the directory to save the log file by using the info-center logfile directory command.

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

If the log file buffer is empty, this command displays a success message event though no logs are saved to the log file.

Examples

# Manually save logs from the log file buffer to the log file.

<Sysname> logfile save

The contents in the log file buffer have been saved to the file flash:/logfile/logfile.log.

Related commands

info-center logfile enable

info-center logfile directory

reset logbuffer

Use reset logbuffer to clear the log buffer.

Syntax

reset logbuffer [ module module-name [ submodule submodule-name ] ]

Views

User view

Predefined user roles

network-admin

context-admin

Parameters

module module-name: Clears the log buffer of a module. The module-name argument is a case-insensitive string that represents the complete module name. To view the names of supported modules, execute the reset logbuffer module ? command. If you do not specify a module, this command clears the general log buffer.

submodule submodule-name: Clears the log buffer of a submodule of the specified module. The submodule--name argument is a case-insensitive string that represents the complete submodule name. To view the names of supported submodules, execute the display logbuffer module module-name submodule ? command. If you do not specify a submodule, this command clears the log buffers of all submodules of the specified module.

Usage guidelines

Non-default vSystems do not support this command.

Examples

# Clear the log buffer.

<Sysname> reset logbuffer

Related commands

display logbuffer

security syslog rate-limit

Use security syslog rate-limit to set the maximum number of security logs that can be sent per second.

Use undo security syslog rate-limit to restore the default.

Syntax

security syslog rate-limit max-value

undo security syslog rate-limit

Default

The device can send a maximum of 400 security logs per second to the information center.

Views

System view

Predefined user roles

network-admin

context-admin

Parameters

max-value: Sets the maximum number of security logs that can be sent per second. The value range for the max-value argument is 0 to 10000. Value 0 indicates that the device does not send security logs to the information center.

Usage guidelines

When the device processes the following security services, a large number of security logs will be generated and sent to the information center, which will cause overload of the information center:

· AFT.

· ASPF.

· Data filtering.

· File filtering.

· URL filtering.

· NAT.

· Session management.

· Anti-virus.

· Application audit and management.

· IPS.

· NetShare Control.

· Attack detection and prevention.

This feature allows you to set the maximum number of security logs that can be sent per second to the information center. With this feature configured, the device will discard the subsequent security logs when the maximum number of security logs that can be sent per second is reached. Please configure the maximum number of security logs that can be sent per second as required.

Examples

# Set 1000 as the maximum number of security logs that can be sent per second.

<Sysname> system-view

[Sysname] security syslog rate-limit 1000

security-logfile save

Use security-logfile save to manually save security logs from the security log file buffer to the security log file.

Syntax

security-logfile save

Views

Any view

Predefined user roles

security-audit

Usage guidelines

Non-default vSystems do not support this command.

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

If the security log file buffer is empty, this command displays a success message event though no security logs are saved to the security log file.

To use this command, a local user must have the security-audit user role.

Examples

# Manually save the security logs in the security log file buffer to the security log file.

<Sysname> security-logfile save

The contents in the security log file buffer have been saved to the file flash:/seclog/seclog.log.

Related commands

info-center security-logfile directory

authorization-attribute (Security Command Reference)

snmp-agent trap enable syslog

Use snmp-agent trap enable syslog to enable SNMP notifications for log messages.

Use undo snmp-agent trap enable syslog to disable SNMP notifications for log messages.

Syntax

snmp-agent trap enable syslog

undo snmp-agent trap enable syslog

Default

The device does not send SNMP notifications for log messages.

Views

System view

Predefined user roles

network-admin

context-admin

Usage guidelines

Non-default vSystems do not support this command.

This command enables the device to send an SNMP notification for each log message it outputs. The device encapsulates logs in SNMP notifications and then sends them to the SNMP module and the log trap buffer.

For the SNMP module to send the received SNMP notifications correctly, you must also configure SNMP on the device. For more information about SNMP configuration, see the network management and monitoring configuration guide for the device.

To view the traps in the log trap buffer, access the MIB corresponding to the log trap buffer. The log trap buffer size can be set by using the info-center syslog trap buffersize command.

Examples

# Enable the device to send SNMP notifications for log messages.

<Sysname> system-view

[Sysname] snmp-agent trap enable syslog

Related commands

info-center syslog trap buffersize

terminal debugging

Use terminal debugging to enable output of debugging messages to the current terminal.

Use undo terminal debugging to disable output of debugging messages to the current terminal.

Syntax

terminal debugging

undo terminal debugging

Default

Output of debugging messages to the current terminal is disabled.

Views

User view

Predefined user roles

network-admin

context-admin

vsys-admin

Usage guidelines

This command enables output of debugging-level log messages to the current terminal.

To enable output of debugging messages to the console, perform the following tasks:

1. Execute the terminal debugging command.

2. Enable the information center. The information center is enabled by default.

3. Use a debugging command to enable the related debugging.

To enable output of debugging messages to the monitor terminal, perform the following tasks:

1. Execute the terminal monitor and terminal debugging commands.

2. Enable the information center. The information center is enabled by default.

3. Use a debugging command to enable the related debugging.

This command takes effect only for the current connection between the terminal and the device. If a new connection is established, the default is restored.

You can also enable output of debugging messages to the current terminal by executing the terminal logging level 7 command. The terminal logging level 7 command and the terminal debugging command have the following differences:

· The terminal logging level 7 command enables log output for all log severity levels (levels 0 through 7).

· The terminal debugging command enables log output for the following log severity levels:

¡ Debugging level (level 7).

¡ Severity level higher than or equal to the level specified in the terminal logging level command.

Examples

# Enable output of debugging messages to the current terminal.

<Sysname> terminal debugging

The current terminal is enabled to display debugging logs.

Related commands

terminal logging level

terminal monitor

terminal logging level

Use terminal logging level to set the lowest level of logs that can be output to the current terminal.

Use undo terminal logging level to restore the default.

Syntax

terminal logging level severity

undo terminal logging level

Default

The lowest level of logs that can be output to the current terminal is 6 (Informational).

Views

User view

Predefined user roles

network-admin

context-admin

Parameters

severity: Specifies a log severity level. Valid values are alert, critical, debugging, emergency, error, informational, notification, warning, and digits from 0 to 7.

Usage guidelines

Non-default vSystems do not support this command.

This command enables the device to output logs with a severity level higher than or equal to the specified level to the current terminal. For example, if you set the severity argument to 6, logs with a severity value from 0 to 6 are output to the current terminal.

This command takes effect only for the current connection between the terminal and the device. If a new connection is established, the default is restored.

Examples

# Configure the device to output logs with the debugging level and higher levels to the current terminal.

<Sysname> terminal logging level 7

terminal monitor

Use terminal monitor to enable log output to the current terminal.

Use undo terminal monitor to disable log output to the current terminal.

Syntax

terminal monitor

undo terminal monitor

Default

Log output to the console is enabled, and log output to the monitor terminal is disabled.

Views

User view

Predefined user roles

network-admin

context-admin

vsys-admin

Usage guidelines

This command takes effect only for the current connection between the terminal and the device. If a new connection is established, the default is restored.

Examples

# Enable log output to the current terminal.

<Sysname> terminal monitor

The current terminal is enabled to display logs.

17-Network Management and Monitoring Command Reference

Information center commands

Usage guidelines

Usage guidelines

Usage guidelines

Usage guidelines

display logfile summary

enable log updown

Usage guidelines

Usage guidelines

Usage guidelines

info-center logbuffer reserved-size

Usage guidelines

info-center logging suppress duplicates

Usage guidelines

Usage guidelines

Usage guidelines

info-center timestamp

Usage guidelines

Usage guidelines

Usage guidelines

terminal logging level

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