Table of Contents

Chapter 1 Information Center 1-1

1.1 Introduction to Information Center 1-1

1.2 Information Center Configuration. 1-5

1.2.1 Information Center Configuration Overview. 1-5

1.2.2 Sending Information to the Loghost 1-10

1.2.3 Sending Information to Console terminal 1-12

1.2.4 Sending Information to Telnet Terminal or Dumb Terminal 1-15

1.2.5 Sending Information to the Log Buffer 1-17

1.2.6 Sending Information to the Trap Buffer 1-19

1.2.7 Sending Information to SNMP Network Management 1-21

1.2.8 Sending Information to a Log File. 1-23

1.3 Displaying and Maintaining Information Center 1-25

1.4 Information Center Configuration Examples. 1-25

1.4.1 Configuration Example of Sending Log to the Unix Loghost 1-25

1.4.2 Configuration Example of Sending Log to the Linux Loghost 1-27

1.4.3 Configuration Example of Sending Log to the Console Terminal 1-29

 

Chapter 1  Information Center

When configuring information center, go to these sections for information you are interested in:

l           Introduction to Information Center

l           Information Center Configuration

l           Displaying and Maintaining Information Center

l           Information Center Configuration Examples

1.1  Introduction to Information Center

The information center is an indispensable part of the switch. It serves as an information center of the system software modules. The logging system is responsible for most of the information outputs, and it also makes detailed classification to filter the information efficiently. Coupled with the debugging program, the information center provides powerful support for the network administrators and the R&D personnel to monitor the operating status of networks and diagnose network failures.

The log information format is:

% <priority> timestamp sysname module/level/digest:content

The closing set of angel brackets < >, the space, the forward slash /, and the colon are all required in the above format, and % is optional.

The format of the log information output to the log host is:

% <189>Jun 7 05:22:03 2006 H3C IFNET/6/UPDOWN:Line protocol on interface Ethernet0/0/0, changed state to UP

The description of the components of log information is as follows:

1)         %

In practical output, some of the information is started with the % character, which means a logging is necessary.

2)         Priority

The priority is computed according to following formula: facility*8+severity-1. The default value for the facility is 23. The range of severity is 1~8, and the severity will be introduced in separate section.

Priority is only effective when information is sent to log host. There is no character between priority and timestamp.

3)         Timestamp

If the logging information is send to the log host, the default format of timestamp is date

The date format of timestamp is " Mmm dd hh:mm:ss yyyy".

" Mmm " is month field, such as: Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec.

"dd" is day field, if the day is little than 10th, one blank should be added, such as " 7".

"hh:mm:ss" is time field, "hh" is from 00 to 23, "mm" and "ss" are from 00 to 59.

"yyyy" is year field.

4)         Sysname

The sysname is the host name, the default value is "H3C".

User can change the host name through sysname command.

Notice: There is a blank between sysname and module name.

5)         Module name

The module name is the name of module which create this logging information, the following sheet list some examples:

Table 1-1 The module name field

Module name	Description
8021X	802.1X module
ACL	Access control list module
ADBM	MAC address management module
ARP	Address resolution protocol module
BGP	Border gateway protocol module
CFM	Configuration file management module
CMD	Command module
default	Default settings for all the modules
DEV	Device management module
DHCP	Dynamic host configuration protocol module
DIAGCLI	Diagnosis module
DNS	Domain name server module
DRVMPLS	Multiprotocol label switching drive module
DRVL2	Layer 2 drive module
DRVL3	Layer 3 drive module
DRVL3MC	Layer 3 multicast module
MPLS	Multiprotocol Label Switching module
DRVPOS	POS drive module
DRVQACL	QACL drive module
DRVVPLS	Virtual private LAN service drive module
ETH	Ethernet module
FTPS	FTP server module
HA	High availability module
HABP	Huawei authentication bypass protocol module
HGMPS	Huawei group management protocol service module
HWCM	Huawei configuration management MIB module
IFNET	Interface management module
IGSP	IGMP snooping module
IP	Internet protocol module
ISIS	Intermediate system-to-intermediate system intra-domain routing protocol module
L2INF	L2 interface management module
L2V	L2 VPN module
LACL	LAN switch ACL module
LDP	label distribution protocol module
LINKAGG	LINKAGG module
LQOS	LAN switch QoS module
LS	Local server module
LSPAGENT	Label switched path agent module
LSPM	Label switch path management module
MIX	Dual system management module
MMC	MMC module
MODEM	Modem module
MPLSFW	MPLS forward module
MPM	Multicast port management module
MSDP	Multicast source discovery protocol module
MSTP	Multiple spanning tree protocol module
NAT	Network address translation module
NTP	Network time protocol module
OSPF	Open shortest path first module
PHY	Physical sublayer & physical layer module
POS_SNMP	POS simple network management protocol module
PPP	Point to point protocol module
PSSINIT	PSSINIT module
RDS	RADIUS module
RM	Routing management module
RMON	Remote monitor module
RPR	Resilient packet ring module
RSA	RSA (Revest, Shamir and Adleman) encryption module
RTPRO	Routing protocol module
SHELL	User interface module
SNMP	Simple network management protocol module
SOCKET	Socket module
SSH	Secure shell module
SYSM	System manage veneer module
SYSMIB	System MIB module
TAC	Terminal access controller module
TELNET	Telnet module
USERLOG	User calling logging module
VFS	Virtual file system module
VLAN	Virtual local area network module
VOS	Virtual operate system module
VRRP	VRRP (virtual router redundancy protocol) module
VTY	VTY (virtual type terminal) module

 

Notice: There is a slash ('/') between module name and severity.

6)         Severity

System information is classified into three types: log information, debugging information, and trap information. Depending on the severity & emergency degree, each kind of information can be further divided into eight levels. Information filtering by severity works this way: information with the severity value greater than the configured threshold will not be output during the filtering. The smaller the severity value, the higher the severity. “emergencies” indicates a severity of 1, and “debugging” indicates a severity of 8. If the severity threshold is set to “debugging”, all information can be output. The table below describes the eight severity level.

Table 1-2 Severity defined by the information center

Severity	Value	Description
emergencies	1	Information on system unavailability
alerts	2	Information requiring immediate reaction
critical	3	Critical information
errors	4	Error information
warnings	5	Warning information
notifications	6	Normal but important information
informational	7	Notification that should be recorded
debugging	8	Information generated during debugging

 

Note: There is a slash between severity and digest.

7)         Digest

The digest is abbreviation, it represent the abstract of contents.

Notice: There is a colon between digest and content. The digest can be up to 32 characters long.

1.2  Information Center Configuration

1.2.1  Information Center Configuration Overview

Switch supports 7 output directions of information.

The system assigns a channel in each output direction by default. See the table below.

Table 1-3 Numbers and names of the channels for log output

Output direction	Channel number	Default channel name
Console	0	console
Monitor	1	monitor
Information center loghost	2	loghost
Trap buffer	3	trapbuf
Logging buffer	4	logbuf
snmp	5	snmpagent
Log file	6	logfile

 

 

The information center of the switch has the following features:

l           Support to output log in 7 directions, i.e., Console, monitor to Telnet terminal, logbuffer, loghost, trapbuffer, and SNMP log file.

l           The log is divided into 8 levels according to the significance and it can be filtered based on the levels.

l           The information can be classified in terms of the source modules and the information can be filtered in accordance with the modules.

l           The output language can be selected between Chinese and English.

1)         Sending information to the loghost

Table 1-4 Send information to the loghost

Device	Configuration	Default value	Configuration description
Switch	Enable information center	By default, the information center is enabled.	Other configurations are valid only if the information center is enabled.
	Set the information output direction to the loghost	—	The configuration about the loghost on the switch and that on loghost must be the same; otherwise the information cannot be sent to the loghost correctly
	Set information source	—	You can define which modules and information to be sent out and the time-stamp format of information, and so on. You must turn on the switch of the corresponding module before defining output debugging information
Loghost	Refer to configuration cases for related log host configuration	—	—

 

2)         Sending information to the console terminal

Table 1-5 Send information to the console terminal.

Device	Configuration	Default value	Configuration description
Switch	Enable information center	By default, information center is enabled.	Other configurations are valid only if the information center is enabled
	Set the information output direction to the Console	—	—
	Set information source	—	You can define which modules and information to be sent out and the time-stamp format of information, and so on. You must turn on the switch of the corresponding module before defining output debugging information
	Enable terminal display function	—	You can view debugging information after enabling terminal display function

 

3)         Sending information to the monitor terminal

Table 1-6 Send information to the monitor terminal

Device	Configuration	Default value	Configuration description
Switch	Enable information center	By default, information center is enabled	Other configurations are valid only if the information center is enabled
	Set the information output direction to the monitor	—	—
	Set information source	—	You can define which modules and information to be sent out and the time-stamp format of information, and so on. You must turn on the switch of the corresponding module before defining output debugging information
	Enable the terminal display function and this function for the corresponding information	—	For Telnet terminal and dumb terminal, to view the information, you must enable the current terminal display function using the terminal monitor command

 

4)         Sending information to the log buffer

Table 1-7 Send information to the log buffer

Device	Configuration	Default value	Configuration description
Switch	Enable information center	By default, information center is enabled	Other configurations are valid only if the information center is enabled
	Set the information output direction to the logbuffer	—	You can configure the size of the log buffer at the same time.
	Set information source	—	You can define which modules and information to be sent out and the time-stamp format of information, and so on. You must turn on the switch of the corresponding module before defining output debugging information

 

5)         Sending information to the trap buffer

Table 1-8 Send information to the trap buffer

Device	Configuration	Default value	Configuration description
Switch	Enable information center	By default, information center is enabled	Other configurations are valid only if the information center is enabled
	Set the information output direction to the trapbuffer	—	You can configure the size of the trap buffer at the same time
	Set information source	—	You can define which modules and information to be sent out and the time-stamp format of information, and so on. You must turn on the switch of the corresponding module before defining output debugging information

 

6)         Sending information to SNMP

Table 1-9 Send information to SNMP

Device	Configuration	Default value	Configuration description
Switch	Enable information center	By default, information center is enabled	Other configurations are valid only if the information center is enabled
	Set the information output direction to SNMP	—	—
	Set information source	—	You can define which modules and information to be sent out and the time-stamp format of information, and so on. You must turn on the switch of the corresponding module before defining output debugging information
	Configure SNMP features	—	Refer to SNMP Configuration in the System Volume.
Network management workstation	The same as the SNMP configuration of the switch	—	—

 

7)         Sending information to a log file

Table 1-10 Send information to a log file

Device	Configuration	Default value	Configuration description
Switch	Enable the information center	By default, the information center is enabled.	Other configurations do not take effect unless the information center is enabled.
	Set the Switch to send information to a log file	By default, the Switch outputs information to a log file, the allowed size of each log file is 2 Mbytes, the system allows you to save a maximum of 5 log files, and log files are saved under cf:/logfile.	You can configure the allowed size of each log file (1 to 5 Mbytes), allowed number of saved log files, and directory under which to save a log file
	Configure an information source	—	You can define the modules and information that can be sent out. If you configure the Switch to output debugging information, you must enable debugging for the corresponding modules.

 

1.2.2  Sending Information to the Loghost

To send configuration information to the loghost, follow the steps below:

1)         Enabling information center

Perform the following configuration to enable/disable information center:

To do…	Use the command…	Remarks
Enable information center	info-center enable	Available in system view
Disable information center	undo info-center enable	Available in system view

 

 

2)         Outputting information to the loghost

Perform the following configuration to output information to the loghost:

To do…	Use the command…	Remarks
Output information to the loghost	info-center loghost { source interface-type interface-number | host-ip-addr [ channel { channel-number | channel-name } | facility local-number | language { chinese | english } ]* }	Available in system view
Cancel the configuration of outputting information to loghost	undo info-center loghost host-ip-addr	Available in system view

 

Note that the IP address of log host must be correct.

 

 

3)         Configuring information source on the switch

By this configuration, you can define the information that sent to console terminal is generated by which modules, information type, information level, and so on.

Perform the following configuration to define information source:

To do…	Use the command…	Remarks
Define information source	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 }* ]*	Available in system view
Cancel the configuration of information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

modu-name specifies the module name; default represents all the modules; all represents all the information filter configuration in channel channel-number except default; level refers to the severity levels; severity specifies the severity level of information. The information with the level below it will not be output. channel-number specifies the channel number and channel-name specifies the channel name.

When defining the information sent to the loghost, channel-number or channel-name must be set to the channel that corresponds to loghost direction.

Every channel has been set with a default record, whose module name is default and the module number is 0xffff0000. However, for different channels, the default record may have different default settings of log, trap and debugging. When there is no specific configuration record for a module in the channel, use the default one.

 

 

4)         Configuring the loghost

The configuration on the loghost must be the same with that on the switch. For related configuration, see the configuration examples in the later part.

1.2.3  Sending Information to Console terminal

To send configuration information to console terminal, follow the steps below:

1)         Enabling information center

To do…	Use the command…	Remarks
Enable information center	info-center enable	Available in system view
Disable information center	undo info-center enable	Available in system view

 

 

2)         Configuring to output information to console terminal

To do…	Use the command…	Remarks
Output information to Console	info-center console channel { channel-number | channel-name }	Available in system view
Cancel the configuration of outputting information to Console	undo info-center console channel	Available in system view

 

3)         Configuring information source on the switch

By this configuration, you can define the information that sent to console terminal is generated by which modules, information type, information level, and so on.

To do…	Use the command…	Remarks
Define information source	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 }* ]*	Available in system view
Cancel the configuration of information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

When defining the information sent to the console terminal, channel-number or channel-name must be set to the channel that corresponds to Console direction.

Every channel has been set with a default record, whose module name is default and the module number is 0xffff0000. However, for different channels, the default record may have different default settings of log, trap and debugging. When there is no specific configuration record for a module in the channel, use the default one.

 

 

You can use the following commands to configure log information, debugging information and the time-stamp output format of trap information.

This configuration will affect the timestamp of the displayed information.

 

 

Perform the following configuration to configure the output format of time-stamp:

To do…	Use the command…	Remarks
Configure the output format of the time-stamp	info-center timestamp { log | trap | debugging } { boot | date | none }	Available in system view
Disable the output of time-stamp	undo info-center timestamp { log | trap | debugging }	Available in system view

 

4)         Enabling terminal display function

To view the output information at the console terminal, you must first enable the corresponding log, debugging and trap information functions at the switch.

For example, if you have set the log information as the information sent to the console terminal, now you need to use the terminal logging command to enable the terminal display function of log information on the switch, then you can view the information at the console terminal.

Perform the following configuration to enable terminal display function:

To do…	Use the command…	Remarks
Enable terminal display function of debugging information	terminal debugging	Available in user view
Disable terminal display function of debugging information	undo terminal debugging	Available in user view
Enable terminal display function of log information	terminal logging	Available in user view
Disable terminal display function of log information	undo terminal logging	Available in user view
Enable terminal display function of trap information	terminal trapping	Available in user view
Disable terminal display function of trap information	undo terminal trapping	Available in user view

 

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

1.2.4  Sending Information to Telnet Terminal or Dumb Terminal

To send configuration information to Telnet terminal or dumb terminal, follow the steps below:

1)         Enabling information center

To do…	Use the command…	Remarks
Enable information center	info-center enable	Available in system view
Disable information center	undo info-center enable	Available in system view

 

 

2)         Configuring to output information to Telnet terminal or dumb terminal

To do…	Use the command…	Remarks
Output information to Telnet terminal or dumb terminal	info-center monitor channel { channel-number | channel-name }	Available in system view
Cancel the configuration of outputting information to Telnet terminal or dumb terminal	undo info-center monitor channel	Available in system view

 

3)         Configuring information source on the switch

By this configuration, you can define the information that sent to Telnet terminal or dumb terminal is generated by which modules, information type, information level, and so on.

To do…	Use the command…	Remarks
Define information source	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 }* ]*	Available in system view
Cancel the configuration of information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

When defining the information sent to Telnet terminal or dumb terminal, channel-number or channel-name must be set to the channel that corresponds to monitor direction.

Every channel has been set with a default record, whose module name is default and the module number is 0xffff0000. However, for different channels, the default record may have different default settings of log, trap and debugging. When there is no specific configuration record for a module in the channel, use the default one.

 

 

 

You can use the following commands to configure log information, debugging information and the time-stamp output format of trap information.

This configuration will affect the timestamp of the displayed information.

Perform the following configuration to configure the output format of time-stamp:

To do…	Use the command…	Remarks
Configure the output format of the time-stamp	info-center timestamp { log | trap | debugging } { boot | date | none }	Available in system view
Disable the output of time-stamp	undo info-center timestamp { log | trap | debugging }	Available in system view

 

4)         Enabling terminal display function

To view the output information at the Telnet terminal or dumb terminal, you must first enable the terminal display function, and then the corresponding terminal display function of log information on the switch.

For example, if you have specified the log information as the information sent to the Telnet terminal or dumb terminal, now you need to use the terminal monitor command to enable the terminal display function and the terminal logging command to enable the terminal display function of log information on the switch, then you can view the information at the Telnet terminal or dumb terminal.

Perform the following configuration to enable terminal display function:

To do…	Use the command…	Remarks
Enable terminal display function of log, debugging and trap information	terminal monitor	Available in user view
Disable terminal display function of the above information	undo terminal monitor	Available in user view
Enable terminal display function of debugging information	terminal debugging	Available in user view
Disable terminal display function of debugging information	undo terminal debugging	Available in user view
Enable terminal display function of log information	terminal logging	Available in user view
Disable terminal display function of log information	undo terminal logging	Available in user view
Enable terminal display function of trap information	terminal trapping	Available in user view
Disable terminal display function of trap information	undo terminal trapping	Available in user view

 

1.2.5  Sending Information to the Log Buffer

To send configuration information to the log buffer, follow the steps below:

1)         Enabling information center

To do…	Use the command…	Remarks
Enable information center	info-center enable	Available in system view
Disable information center	undo info-center enable	Available in system view

 

 

2)         Configuring to output information to the log buffer

To do…	Use the command…	Remarks
Output information to log buffer	info-center logbuffer [ channel { channel-number | channel-name } | size buffersize ]*	Available in system view
Cancel the configuration of outputting information to log buffer	undo info-center logbuffer [ channel | size ]	Available in system view

 

By default, the switch outputs information to the log buffer in the CPU. The size of the log buffer is 512, that is, the log buffer can hold up to 512 messages.

3)         Configuring information source on the switch

By this configuration, you can define the information that sent to log buffer is generated by which modules, information type, information level, and so on.

To do…	Use the command…	Remarks
Define information source	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 }* ]*	Available in system view
Cancel the configuration of information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

modu-name specifies the module name; default represents all the modules; all represents all the information filter configuration in channel channel-number except default; level refers to the severity levels; severity specifies the severity level of information. The information with the level below it will not be output. channel-number specifies the channel number and channel-name specifies the channel name.

When defining the information sent to log buffer, channel-number or channel-name must be set to the channel that corresponds to logbuffer direction.

Every channel has been set with a default record, whose module name is default and the module number is 0xffff0000. However, for different channels, the default record may have different default settings of log, trap and debugging. When there is no specific configuration record for a module in the channel, use the default one.

 

 

You can use the following commands to configure log information, debugging information and the time-stamp output format of trap information.

Perform the following configuration to configure the output format of time-stamp:

To do…	Use the command…	Remarks
Configure the output format of the time-stamp	info-center timestamp { log | trap | debugging } { boot | date | none }	Available in system view
Disable the output of time-stamp	undo info-center timestamp { log | trap | debugging }	Available in system view

 

1.2.6  Sending Information to the Trap Buffer

To send configuration information to the trap buffer, follow the steps below:

1)         Enabling the information center

To do…	Use the command…	Remarks
Enable information center	info-center enable	Available in system view
Disable information center	undo info-center enable	Available in system view

 

 

2)         Configuring to output information to the trap buffer

To do…	Use the command…	Remarks
Output information to trap buffer	info-center trapbuffer [ size buffersize | channel { channel-number | channel-name } ]*	Available in system view
Cancel the configuration of outputting information to trap buffer	undo info-center trapbuffer [ channel | size ]	Available in system view

 

By default, the switch outputs information to the trap buffer in the CPU. The size of the trap buffer is 256, that is, the trap buffer can hold up to 256 messages.

3)         Configuring information source on the switch

By this configuration, you can define the information that sent to trap buffer is generated by which modules, information type, information level, and so on.

To do…	Use the command…	Remarks
Define information source	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 }* ]*	Available in system view
Cancel the configuration of information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

When defining the information sent to trap buffer, channel-number or channel-name must be set to the channel that corresponds to trapbuffer direction.

Every channel has been set with a default record, whose module name is default and the module number is 0xffff0000. However, for different channels, the default record may have different default settings of log, trap and debugging. When there is no specific configuration record for a module in the channel, use the default one.

 

 

You can use the following commands to configure log information, debugging information and the time-stamp output format of trap information.

This configuration will affect the timestamp of the displayed information.

Perform the following configuration to configure the output format of time-stamp:

To do…	Use the command…	Remarks
Configure the output format of the time-stamp	info-center timestamp { log | trap | debugging } { boot | date | none }	Available in system view
Disable the output of time-stamp	undo info-center timestamp { log | trap | debugging }	Available in system view

 

1.2.7  Sending Information to SNMP Network Management

To send configuration information to SNMP NM, follow the steps below:

1)         Enabling information center

To do…	Use the command…	Remarks
Enable information center	info-center enable	Available in system view
Disable information center	undo info-center enable	Available in system view

 

 

2)         Outputting information to SNMP NM

To do…	Use the command…	Remarks
Output information to SNMP NM	info-center snmp channel { channel-number | channel-name }	Available in system view
Cancel the configuration of outputting information to SNMP NM	undo info-center snmp channel	Available in system view

 

3)         Configuring information source on the switch

By this configuration, you can define the information that sent to SNMP NM is generated by which modules, information type, information level, and so on.

To do…	Use the command…	Remarks
Define information source	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 }* ]*	Available in system view
Cancel the configuration of information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

modu-name specifies the module name; default represents all the modules; all represents all the information filter configuration in channel channel-number except default level refers to the severity levels; severity specifies the severity level of information. The information with the level below it will not be output. channel-number specifies the channel number and channel-name specifies the channel name.

When defining the information sent to SNMP NM, channel-number or channel-name must be set to the channel that corresponds to SNMP direction.

Every channel has been set with a default record, whose module name is default and the module number is 0xffff0000. However, for different channels, the default record may have different default settings of log, trap and debugging. When there is no specific configuration record for a module in the channel, use the default one.

 

 

You can use the following commands to configure log information, debugging information and the time-stamp output format of trap information.

This configuration will affect the timestamp of the displayed information.

Perform the following configuration to configure the output format of time-stamp:

To do…	Use the command…	Remarks
Configure the output format of the time-stamp	info-center timestamp { log | trap | debugging } { boot | date | none }	Available in system view
Disable the output of time-stamp	undo info-center timestamp { log | trap | debugging }	Available in system view

 

4)         Configuring SNMP and network management workstation on the switch

You have to configure SNMP on the switch and the remote workstation to ensure that the information is correctly sent to SNMP NM. Then you can get correct information from network management workstation. For SNMP configuration on switch refer to SNMP Configuration in the System Volume.

1.2.8  Sending Information to a Log File

To configure the Switch to send information to a log file, follow the procedure below:

1)         Enabling the information center

To do…	Use the command…	Remarks
Enable the information center	info-center enable	Available in system view
Disable the information center	undo info-center enable	Available in system view

 

 

2)         Setting the Switch to output information to a log file

To do…	Use the command…	Remarks
Set the Switch to send information to a log file	info-center logfile [ channel { channel-number | channel-name } | size logfile-size | directory directory | number logfile-num ]* info-center logfile [ flush ]	Available in system view
Disable the Switch from sending information to a log file	undo info-center logfile [ channel | size | directory | number ]	Available in system view

 

By default, the Switch outputs information to a log file, the allowed size of each log file is 2 Mbytes, the system allows you to save a maximum of 5 log files, and log files are saved under cf:/logfile.

3)         Configuring an information source on the Switch

You can define the modules that generate the information to be sent to log files, information type, and information level.

To do…	Use the command…	Remarks
Define an information source	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 }* ]*	Available in system view
Remove the configuration of the information source	undo info-center source { modu-name | default | all } channel { channel-number | channel-name }	Available in system view

 

modu-name indicates a module name. default indicates all modules. all means removing all non-default information filtering configurations in the channelnum channel. level indicates the level of information severity. severity indicates an information level. The information at a lower level will not be output. channel-number indicates a channel number. channel-name indicates an information channel name.

When defining the information sent to a log file, you must set channel-number or channel-name to a channel in the logfile direction.

A default record is set for each information channel. It has a module name of default and a module number of 0xffff0000. The default record (containing log, trap, and debugging information) may vary with the information channels. If a module has no definite configuration record in this channel, the system uses the default record.

 

 

1.3  Displaying and Maintaining Information Center

To do…	Use the command…	Remarks
Display the content of information channel	display channel [ channel-number | channel-name ]	Available in any view
Display configuration of system log and memory buffer	display info-center	Available in any view
Display the attribute of logbuffer and the information recorded in logbuffer	display logbuffer [ summary ] [ size sizenum | [ reverse ] | level { levelnum | emergencies | alerts | critical | errors | warnings | notifications | informational | debugging } ] * [ | { begin | include | exclude } text ]	Available in any view
Display the summary information recorded in logbuffer	display logbuffer summary [ level severity ]	Available in any view
Display the attribute of trapbuffer and the information recorded in trapbuffer	display trapbuffer [ summary ] [ level [ levelnum | emergencies | alerts | critical | debugging | errors | informational | notifications | warnings ] ] [ size sizenum]	Available in any view
Clear information in memory buffer	reset logbuffer	Available in user view
Clear information in trap buffer	reset trapbuffer	Available in user view

 

1.4  Information Center Configuration Examples

1.4.1  Configuration Example of Sending Log to the Unix Loghost

I. Network requirements

The network requirements are as follows:

l           Sending the log information of the switch to UNIX loghost

l           The IP address of the loghost is 202.38.1.10

l           The information with the severity level above “informational” will be sent to the loghost

l           The output language is English

l           The modules that allowed to output information are ARP and IP

II. Network diagram

Figure 1-1 Network diagram

III. Configuration steps

1)         Configuration on the switch

# Enable information center

[H3C] info-center enable

# Set the host with the IP address of 202.38.1.10 as the loghost; set the severity level threshold value as “informational”, set the output language to English; set that the modules which are allowed to output information are ARP and IP.

[H3C] info-center loghost 202.38.1.10 language english

[H3C] info-center source arp channel loghost log level informational

[H3C] info-center source ip channel loghost log level informational

2)         Configuration on the loghost

This configuration is performed on the loghost. The following example is performed on SunOS 4.0 and the operation on Unix operation system produced by other manufactures is generally the same to the operation on SunOS 4.0.

Step 1: Perform the following command as the super user (root).

# mkdir /var/log/H3C

# touch /var/log/H3C/information

Step 2: Edit file /etc/syslog.conf as the super user (root), add the following selector/actor pairs.

# H3C configuration messages

local4.info    /var/log/H3C/information

 

 

Step 3: After the establishment of information (log file) and the revision of /etc/syslog.conf, you should send a HUP signal to syslogd (system daemon), through the following command, to make syslogd reread its configuration file /etc/syslog.conf.

# ps -ae | grep syslogd

147

# kill -HUP 147

After the above operation, the switch system can record information in related log files.

 

 

1.4.2  Configuration Example of Sending Log to the Linux Loghost

I. Network requirements

The Network requirements are as follows:

l           Sending the log information of the switch to LINUX loghost

l           The IP address of the loghost is 202.38.1.10

l           The information with the severity level above informational will be sent to the loghost

l           The output language is English

l           All modules are allowed to output information

II. Network diagram

Figure 1-2 Network diagram

III. Configuration procedure

1)         Configuration on the switch

# Enable information center

[H3C] info-center enable

# Set the host with the IP address of 202.38.1.10 as the loghost; set the severity level threshold value as “informational”, set the output language to English; set all the modules are allowed output information.

[H3C] info-center loghost 202.38.1.10 language english

[H3C] info-center source default channel loghost log level informational

2)         Configuration on the loghost

This configuration is performed on the loghost.

Step 1: Perform the following command as the super user (root).

# mkdir /var/log/H3C

# touch /var/log/H3C/information

Step 2: Edit file /etc/syslog.conf as the super user (root), add the following selector/actor pairs.

# H3C configuration messages

local7.info    /var/log/H3C/information

 

 

Step 3: After the establishment of information (log file) and the revision of /etc/syslog.conf, you should view the number of syslogd (system daemon) through the following command, kill syslogd daemon and reuse -r option to start syslogd in daemon.

# ps -ae | grep syslogd

147

# kill -9 147

# syslogd -r &

 

 

After the above operation, the switch system can record information in related log files.

 

 

1.4.3  Configuration Example of Sending Log to the Console Terminal

I. Network requirements

The network requirements are as follows:

l           Sending the log information of the switch to console terminal

l           The information with the severity level above informational will be sent to the console terminal

l           The output language is English

The modules that allowed to output information are ARP and IP

II. Network diagram

Figure 1-3 Network diagram

III. Configuration procedure

Configuration on the switch:

# Enable information center.

[H3C] info-center enable

# Configure console terminal log output; allow modules ARP and IP to output information; the severity level is restricted within the range of emergencies to informational.

[H3C] info-center console channel console

[H3C] info-center source arp channel console log level informational

[H3C] info-center source ip channel console log level informational

# Enable terminal display function.

<H3C> terminal logging