channel-name: Specifies a channel name, which could be a default name or one that is defined by the user. The user needs to specify a channel name first before using it as a self-defined channel name. For more information, refer to the info-center channel name command.

Table 1-1 Information channels for different output directions

Output direction	Information channel No.	Default channel name
Console	0	console
Monitor terminal	1	monitor
Log host	2	loghost
Trap buffer	3	trapbuffer
Log buffer	4	logbuffer
SNMP NMS	5	snmpagent

Description

Use the display channel command to display channel information.

If no channel is specified, information for all channels will be displayed.

Example

# Display information for 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 warnings Y debugging Y debugging

Table 1-2 Description on the fields of the display channel command

Field	Description
channel number	A specified channel number, in the range of 0 to 9.
channel name	A specified channel name, which varies according to configuration. For more information, refer to the info-center channel name command.
MODU_ID	The ID of the module to which the information permitted through the current channel belongs
NAME	The name of the module to which the information permitted through the current channel belongs
ENABLE	Indicates whether to enable or disable the output of log information, which could be Y or N.
LOG_LEVEL	The severity of log information, refer to Table 1-4 for details.
ENABLE	Indicates whether to enable or disable the output of trap information, which could be Y or N.
TRAP_LEVEL	The severity of trap information, refer to Table 1-4 for details.
ENABLE	Indicates whether to enable or disable the output of debug information, which could be Y or N.
DEBUG_LEVEL	The severity of debug information, refer to Table 1-4 for details.

1.1.2 display info-center

Syntax

display info-center

View

Any view

Parameter

None

Description

Use the display info-center command to display configurations for all channels (except channel 6 to 8) of the information center.

Example

# Display configurations for all channels.

<Sysname> display info-center

Information Center:enabled

Log host:

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 371

channel number : 4, channel name : logbuffer

Trap buffer:

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

current messages 41, dropped messages 0, overwritten messages 0

channel number : 3, channel name : trapbuffer

Information timestamp setting:

log - date, trap - date, debug - boot

loghost - date

Table 1-3 Description on the fields of the display info-center command

Field	Description
Information Center	The current state of the information center, which could be enabled or disabled.
Log host	The state of the log host, including its IP address, the channel number(s) and channel name(s) used, the language mode and logging facility used.
Console	The state of the console, including the channel number and channel name used
Monitor	The state of the monitor, including the channel number(s) and channel name(s) used
SNMP Agent	The state of the SNMP agent, including the channel number(s) and channel name(s) used by the SNMP agent.
Log buffer	The state of the log buffer, including whether it 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	The state of the trap buffer, including whether it 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.
Information timestamp setting	The time stamp configurations, specifying the time stamp format for log, trap, debug, and log host information.

1.1.3 display logbuffer

Syntax

display logbuffer [ level severity | size buffersize ] * [ | { begin | exclude | include } text ]

View

Any view

Parameter

severity: Information level, in the range of 0 to 7.

Table 1-4 Severity description

Severity	Value	Description
emergencies	0	The most emergent errors
alerts	1	Errors that demand prompt correction
critical	2	Critical errors
errors	3	Errors that are not critical but demand attention
warnings	4	Warnings that suggest possible errors
notifications	5	Normal errors with important prompts
informational	6	Normal prompts
debugging	7	Debugging prompts

buffersize: Specifies the number of the latest log messages to display in the log buffer, in the range of 1 to 1,024.

|: The output log information filtered by a regular expression.

begin: Displays log information beginning with a specified character or string.

exclude: Displays log information that do not contain a specified character or string.

include: Displays log information that contain a specified character or string.

text: Regular expression.

Description

Use the display logbuffer command to display the state of the log buffer and the log information recorded. Absence of the size buffersize parameter indicates that all log information recorded in the log buffer will be displayed.

Example

# Display the state of the log buffer and the log information recorded on a device.

<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 : 0

Current messages : 163

%Mar 24 13:50:47:500 2006 Sysname IC/7/SYS_RESTART:

System restarted --

H3C Platform Software

%Apr 17 15:06:19:245 2006 Sysname SHELL/5/CMD:task:vt0 ip:192.168.0.33 user:** command:user-interface vty 0 4

%Apr 17 15:06:23:418 2006 Sysname SHELL/5/CMD:task:vt0 ip:192.168.0.33 user:** command:idle-timeout 0

%Apr 17 15:06:26:729 2006 Sysname SHELL/5/CMD:task:vt0 ip:192.168.0.33 user:** command:q

%Apr 17 15:06:33:572 2006 Sysname SHELL/5/LOGIN: VTY login from 192.168.0.210

%Apr 17 15:06:36:954 2006 Sysname SHELL/5/CMD:task:vt1 ip:192.168.0.210 user:** command:sys

The rest is omitted here.

Table 1-5 Descriptions on the fields of the display logbuffer command

Field	Description
Logging buffer configuration and contents	Indicates the current state of the log buffer and its contents, which could be enabled or disabled.
Allowed max buffer size	The maximum buffer size allowed
Actual buffer size	The actual buffer size
Channel number	The channel number of the log buffer, defaults to 4
Channel name	The channel name of the log buffer, defaults to logbuffer
Dropped messages	The number of dropped messages
Overwritten messages	The number of overwritten messages (when the buffer size is not big enough to hold all messages, the latest messages will overwrite the old ones).
Current messages	The number of the current messages.

1.1.4 display logbuffer summary

Syntax

display logbuffer summary [ level severity ]

View

Any view

Parameter

severity: Information level, in the range of 0 to 7.

Description

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

Example

# Display the summary of the log buffer on a device.

<Sysname> display logbuffer summary

EMERG ALERT CRIT ERROR WARN NOTIF INFO DEBUG

0 0 0 0 94 0 1 0

Table 1-6 Descriptions on the fields of the display logbuffer summary command

Field	Description
EMERG	Represents emergencies, refer to Table 1-4 for details
ALERT	Represents alerts, refer to Table 1-4 for details
CRIT	Represents critical, refer to Table 1-4 for details
ERROR	Represents errors, refer to Table 1-4 for details
WARN	Represents warnings, refer to Table 1-4 for details
NOTIF	Represents notifications, refer to Table 1-4 for details
INFO	Represents informational, refer to Table 1-4 for details
DEBUG	Represents debugging, refer to Table 1-4 for details

1.1.5 display trapbuffer

Syntax

display trapbuffer [ size buffersize ]

View

Any view

Parameter

buffersize: Specifies the number of the latest trap messages in a trap buffer, in the range of 1 to 1,024.

Description

Use the display trapbuffer command to display the state and the trap information recorded.

Absence of the size buffersize parameter indicates that all trap information will be displayed.

Example

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

<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 : 6

#Apr 26 12:00:49:381 2000 Sysname IFNET/5/INTERFACE UPDOWN: Trap 1.3.6.1.6.3.1.1.5.4: Interface 9437189 is Up, ifAdminStatus is 1, ifOperStatus is 1

#Apr 26 12:00:49:411 2000 Sysname IFNET/5/INTERFACE UPDOWN: Trap 1.3.6.1.6.3.1.1.5.4: Interface 11665408 is Up, ifAdminStatus is 1, ifOperS

tatus is 1

#Apr 26 12:00:49:491 2000 Sysname MSTP/2/PFWD:1.3.6.1.4.1.2011.2.23.1.14.0.1: Instance 1's Port 6.1 has been set to forwarding state! ……

Table 1-7 Descriptions on the fields of the display trapbuffer command

Field	Description
Trapping buffer configuration and contents	Indicates the current state of the trap buffer and its contents, which could be enabled or disabled.
Allowed max buffer size	The maximum buffer size allowed
Actual buffer size	The actual buffer size
Channel number	The channel number of the trap buffer, defaults to 3
Channel name	The channel name of the trap buffer, defaults to trapbuffer
Dropped messages	The number of dropped messages
Overwritten messages	The number of overwritten messages (when the buffer size is not big enough to hold all messages, the latest messages will overwrite the old ones).
Current messages	The number of the current messages.

1.1.6 info-center channel name

Syntax

info-center channel channel-number name channel-name

undo info-center channel channel-number

View

System view

Parameter

channel-number: The specified channel number, in the range of 0 to 9.

channel-name: The specified channel name, a string of 1 to 30 characters. It should not start with a number, an underscore (-), a forward slash (/), or a backward slash (\). The channel name is not case sensitive.

Description

Use the info-center channel name command to name a channel with a specified channel number.

Use the undo info-center channel command to restore the default name for a channel with a specified channel number.

Refer to Table 1-1 for details of default channel names and channel numbers.

Example

# Name channel 0 abc.

<Sysname> system-view

[Sysname] info-center channel 0 name abc

1.1.7 info-center console channel

Syntax

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

undo info-center console channel

View

System view

Parameter

channel-number: A specified channel number, in the range of 0 to 9.

channel-name: A specified channel name, which could be a default name or one that is defined by the user. The user needs to specify a channel name first before using it as a self-defined channel name. For more information, refer to the info-center channel name command.

Description

Use the info-center console channel command to specify the channel to output system information to the console.

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

By default, output of information to the console is enabled with channel 0 as the default channel (known as console).

Note that only after the information center has been enabled first using the info-center enable command will the info-center console channel command take effect.

Example

# Configure channel 0 to output system information to the console.

<Sysname> system-view

[Sysname] info-center console channel 0

1.1.8 info-center enable

Syntax

info-center enable

undo info-center enable

View

System view

Parameter

None

Description

Use the info-center enable command to enable information center.

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

Only after the information center is enabled first will the system be able to output information to the log host or the console.

By default, the information center is enabled.

Example

# Enable the information center.

<Sysname> system-view

[Sysname] info-center enable

% Information center is enabled

1.1.9 info-center logbuffer

Syntax

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

undo info-center logbuffer [ channel | size ]

View

System view

Parameter

buffersize: Specifies the maximum number of log messages in a log buffer, in the range of 1 to 1,024 with 512 as the default value.

channel-number: A specified channel number, in the range of 0 to 9.

Description

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

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

By default, information output to the log buffer is enabled with channel 4 (logbuffer) as the default channel and a maximum buffer size of 512.

Note that only after the information center is enabled using the info-center enable command will the info-center logbuffer command take effect.

Example

# Enable the system to output information to the log buffer with a default buffer size of 50.

<Sysname> system-view

[Sysname] info-center logbuffer size 50

1.1.10 info-center loghost

Syntax

info-center loghost host-ip [ channel { channel-number | channel-name } ] [| facility local-number ]| [ language { chinese | english } ] *

undo info-center loghost host-ip

View

System view

Parameter

host-ip: The IP address of the log host.

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

channel-number: A specified channel number, in the range of 0 to 9.

facility local-number: The logging facility of the log host, can be local0 to local7, defaults to local7.

language: The language of log information, which is English by default.

chinese: Indicates that the log information recorded is in Chinese.

english: Indicates that the log information recorded is in English.

Description

Use the info-center loghost command to specify a log host and to configure the related parameters.

Use the undo info-center loghost command to restore the default configurations on a log host.

By default, output of system information to the log host is disabled. When it is enabled, the default channel name will be loghost and the default channel number will be 2.

Note the following information:

l Only after the information center is enabled using the info-center enable command will the info-center loghost command take effect.

l Ensure that the IP address input is correct while using the info-center loghost command to configure the IP address for a log host. System will prompt an invalid address if the loopback address (127.0.0.1) is input.

l A maximum number of 4 hosts (different) can be designated as the log host.

Example

# Configure to output log information to a Unix station with the IP address being 1.1.1.1/16.

<Sysname> system-view

[Sysname] info-center loghost 1.1.1.1

1.1.11 info-center loghost source

Syntax

info-center loghost source interface-type interface-number

undo info-center loghost source

View

System view

Parameter

interface-type interface-number: Specifies the type and number of the source interface.

Description

Use the info-center loghost source command to configure the source interface to output log information to the log host.

Use the undo info-center loghost source command to remove the source interface to output log information to the log host.

By default, no source interface is configured to output log information to the log host, and the system selects an interface as the source interface.

Note that only after the information center is enabled using the info-center enable command will the info-center loghost source command take effect.

Example

# Configure the interface Vlan-interface 1 to be the source interface to output log information to the log host.

<Sysname> system-view

[Sysname] info-center loghost source Vlan-interface 1

1.1.12 info-center monitor channel

Syntax

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

undo info-center monitor channel

View

System view

Parameter

channel-number: A specified channel number, in the range of 0 to 9.

Description

Use the info-center monitor channel command to configure the channel to output system information to the monitor.

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

By default, output of system information to the monitor is enabled with a default channel name of monitor and a default channel number of 1.

Note that only after the information center is enabled using the info-center enable command will the info-center monitor channel command take effect.

Example

# Configure to output system information to the monitor through channel 0.

<Sysname> system-view

[Sysname] info-center monitor channel 0

1.1.13 info-center snmp channel

Syntax

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

undo info-center snmp channel

View

System view

Parameter

channel-number: A specified channel number, in the range of 0 to 9.

Description

Use the info-center snmp channel command to configure the channel to output system information to the SNMP NMS.

Use the undo info-center snmp channel command to restore the default channel to output system information to the SNMP NMS.

By default, output of system information to the SNMP NMS is enabled with a default channel name of snmpagent and a default channel number of 5.

Related command: display snmp-agent (Refer to the SNMP-RMON Command Manual for detail).

Example

# Configure to output system information to the SNMP NMS through channel 6.

<Sysname> system-view

[Sysname] info-center snmp channel 6

1.1.14 info-center source

Syntax

info-center source { modu-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 { modu-name | default } channel { channel-number | channel-name }

View

System view

Parameter

modu-name: Specifies the name of the source module, which varies from product to product. For instance, if information on ARP module is to be output, you can configure this parameter as ARP.

default: Indicates that all modules can output system information. This configuration varies from product to product.

debug: Debug information.

log: Log information.

trap: Trap information.

severity: The severity of system information, refer to Table 1-4 for details.

state: The state of system information, which could be on or off.

channel-number: A specified channel number, in the range of 0 to 9.

Description

Use the info-center source command to specify the information source for a specified channel.

Use the undo info-center source command to restore the default configurations of the information source.

By default, an information channel is allocated for each output direction. For details, refer to Table 1-1.

This command can be used to filter and to redirect system information.

For example, the user can configure to output log information with severity higher than warnings to the log host, and information with severity higher than informational to the log buffer. The user can also configure to output trap information of the ARP module to a specified output direction.

Example

# Configure the output channel for the log information of VLAN module to be snmpagent and to output information with severity being emergencies.

<Sysname> system-view

[Sysname] info-center source VLAN channel snmpagent log level emergencies

1.1.15 info-center synchronous

Syntax

info-center synchronous

undo info-center synchronous

View

System view

Parameter

None

Description

Use the info-center synchronous command to enable synchronous information output.

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

By default, the synchronous information output is disabled.

& Note:

l Under the current command line prompt, if the user’s input is interrupted by system output such as log information, then after the completion of system output the system will not display command line prompt.

l When users need to input some interactive information (non Y/N confirmation information) if the user’s input is interrupted by system information, then after the completion of system output the system will not display command line prompt but just display the user’s input.

Example

# Enable synchronous information output.

<Sysname> system-view

[Sysname] info-center synchronous

% Info-center synchronous output is on

# The user receives trap packets when he/she is about to display the configurations for an Ethernet interface by inputting the display interface giga command. After the system has finished its output of trap packets, it will display the user’s original input, which is “display interface giga” in this case.

<Sysname> system-view

[Sysname] display interface giga

%Apr 2 17:33:48:986 2000 Sysname L2INF/5/PORT LINK STATUS CHANGE:- 1 -

GigabitEthernet1/0/10: is UP

[Sysname] display interface giga

1.1.16 info-center timestamp

Syntax

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

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

View

System view

Parameter

log: Log information.

trap: Trap information.

debugging: Debug information.

boot: The time taken to boot up the system, in the format of xxxxxx.yyyyyy, in which xxxxxx represents the most significant 32 bits of the time taken to boot up the system (in milliseconds) whereas yyyyyy is the least significant 32 bits.

date: The current system date and time, in the format of “Mmm dd hh:mm:ss:sss yyyy”.

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

l dd: The date, starting with a space if less than 10, for example “ 7”.

l hh:mm:ss:sss: The local time, with hh ranging from 00 to 23, mm and ss ranging from 00 to 59, and sss ranging from 0 to 999.

l yyyy: Represents the year.

none: No information on time provided.

Description

Use the info-center timestamp command to configure the time stamp format.

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

By default, the time stamp format for log and trap information is data, and that for debugging information is boot.

Example

# Configure the time stamp for debug information to be date.

<Sysname> system-view

[Sysname] info-center timestamp debugging date

1.1.17 info-center timestamp loghost

Syntax

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

undo info-center timestamp loghost

View

System view

Parameter

date: Indicates the current system date and time, the format of which is decided by the log host.

no-year-date: Indicates the current system date and time, but the year information is not included.

none: Indicates that no time stamp information is provided.

Description

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

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

By default, the time stamp format for log information sent to the log host is date.

Example

# Configure not to include the year information in the output information to the log host.

<Sysname> system-view

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

1.1.18 info-center trapbuffer

Syntax

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

undo info-center trapbuffer [ channel | size ]

View

System view

Parameter

buffersize: Specifies the trap buffer size, that is, the number of log messages that can be accommodated in the log buffer, in the range of 1 to 1,024. Defaults to 256.

channel-number: A specified channel number, in the range of 0 to 9.

Description

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

Use the undo info-center trapbuffer command 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.

Note that only after the information center is enabled using the info-center enable command will the info-center trapbuffer command take effect.

Example

# Enable system to output information to the trap buffer with a default buffer size of 30.

<Sysname> system-view

[Sysname] info-center trapbuffer size 30

1.1.19 reset logbuffer

Syntax

reset logbuffer

View

User view

Parameter

None

Description

Use the reset logbuffer command to reset the log buffer contents.

Example

# Reset the log buffer contents.

<Sysname> reset logbuffer

1.1.20 reset trapbuffer

Syntax

reset trapbuffer

View

User view

Parameter

None

Description

Use the reset trapbuffer command to reset the trap buffer contents.

Example

# Reset the trap buffer contents.

<Sysname> reset trapbuffer

1.1.21 terminal debugging

Syntax

terminal debugging

undo terminal debugging

View

User view

Parameter

None

Description

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

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

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

Note that only after the monitoring of system information is enabled on the current terminal first (using the terminal monitor command) will the debug information be displayed (using the terminal debugging command).

Example

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

<Sysname> terminal debugging

% Current terminal debugging is on

1.1.22 terminal logging

Syntax

terminal logging

undo terminal logging

View

User view

Parameter

None

Description

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

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

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

Note that only after the monitoring of system information is enabled on the current terminal first (using the terminal monitor command) will the log information be displayed (using the terminal logging command).

Example

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

<Sysname> undo terminal logging

% Current terminal logging is off

1.1.23 terminal monitor

Syntax

terminal monitor

undo terminal monitor

View

User view

Parameter

None

Description

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

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

l Note that the terminal monitor command must be issued first before the log, trap, and debug information can be displayed using the corresponding commands.

l Issuing of the undo terminal monitor command automatically disable the monitoring of log, trap, and debug information.

By default, the monitoring of the console is enabled whereas the monitoring of the terminal is disabled.

Example

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

<Sysname> terminal monitor

% Current terminal monitor is on

1.1.24 terminal trapping

Syntax

terminal trapping

undo terminal trapping

View

User view

Parameter

None

Description

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

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

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

Note that only after the monitoring of system information is enabled on the current terminal first (using the terminal monitor command) will the trapping information be displayed (using the terminal trapping command).

Example

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

<Sysname> terminal trapping

% Current terminal trapping is on

H3C S5500-SI Series Ethernet Switches Command Manual-Release 1205-(V1.03)

Chapter 1 Information Center Configuration Commands

1.1.2 display info-center

1.1.5 display trapbuffer

1.1.6 info-center channel name

1.1.16 info-center timestamp

Cloud & AI

InterConnect

Intelligent Terminal Products

Product Support Services

Technical Service Solutions

Resource Center

Policy

Online Help

Become a Partner

Partner Resources

Partner Business Management

Company Information

News & Events

Contact Us