29-Information Center Configuration

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Table of Contents

Chapter 1 Information Center Configuration. 1-1

1.1 Information Center Overview. 1-1

1.1.1 Introduction to Information Center 1-1

1.1.2 System Information Format 1-5

1.2 Configuring Information Center 1-6

1.2.1 Information Center Configuration Task List 1-6

1.2.2 Setting to Output System Information to the Console. 1-7

1.2.3 Setting to Output System Information to a Monitor Terminal 1-9

1.2.4 Setting to Output System Information to a Log Host 1-10

1.2.5 Setting to Output System Information to the Trap Buffer 1-11

1.2.6 Setting to Output System Information to the Log Buffer 1-12

1.2.7 Setting to Output System Information to the SNMP NMS. 1-13

1.2.8 Configuring Synchronous Information Output 1-14

1.3 Displaying and Maintaining Information Center 1-14

1.4 Information Center Configuration Examples. 1-15

1.4.1 Outputting Log Information to a Unix Log Host 1-15

1.4.2 Outputting Log Information to a Linux Log Host 1-17

1.4.3 Outputting Log Information to the Console. 1-19

 

Chapter 1  Information Center Configuration

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

l           Information Center Overview

l           Configuring Information Center

l           Displaying and Maintaining Information Center

l           Information Center Configuration Examples

1.1  Information Center Overview

1.1.1  Introduction to Information Center

Acting as the system information hub, information center classifies and manages system information. Together with the debugging functionality, information center offers a powerful support for network administrators and developers in monitoring network performance and diagnosing network problems.

 

&  Note:

By default, the information center is enabled. An enabled information center affects the system performance in some degree due to information classification and output. Such impact becomes more obvious in the event that there is enormous information waiting for processing.

 

The information center of the system has the following features:

I. Classification of system information

The system is available with three types of information:

l           Log information

l           Trap information

l           Debugging information

II. Eight levels of system information

The information is classified into eight levels by severity and can be filtered by level. More emergent information has a smaller severity level.

Table 1-1 Severity description

Severity

Severity value

Description

emergencies

0

The system is unavailable.

alerts

1

Information that demands prompt reaction

critical

2

Critical information

errors

3

Error information

warnings

4

Warnings

notifications

5

Normal information that needs to be noticed

informational

6

Informational information to be recorded

debugging

7

Information generated during debugging

 

Information filtering by severity works this way: information with the severity value greater than the configured threshold is not output during the filtering.

l           If the threshold is set to 0, only information with the severity being emergencies will be output;

l           If the threshold is set to 7, information of all severities will be output.

III. Ten channels and six output destinations of system information

The system supports six information output destinations, including the console, monitor, logbuffer, loghost, trapbuffer, and SNMP.

The system supports ten channels. The channels 0 through 5 have their default channel names and are associated with six output destinations by default. Both the channel names and the associations between the channels and output destinations can be changed through commands.

Table 1-2 Information channels and output destinations

Information channel number

Default channel name

Default output destination

0

console

Console (Receives log, trap and debugging information)

1

monitor

Monitor terminal (Receives log, trap and debugging information, facilitating remote maintenance)

2

loghost

Log host (Receives log, trap and debugging information and information will be stored in files for future retrieval.)

3

trapbuffer

Trap buffer (Receives trap information, a buffer inside the router for recording information.)

4

logbuffer

Log buffer (Receives log information, a buffer inside the router for recording information.)

5

snmpagent

SNMP NMS (Receives trap information)

6

channel6

Not specified (Receives log, trap, and debugging information)

7

channel7

Not specified (Receives log, trap, and debugging information)

8

channel8

Not specified (Receives log, trap, and debugging information)

9

channel9

Not specified (Receives log, trap, and debugging information)

 

&  Note:

Configurations for the six output destinations function independently and take effect only after the information center is enabled.

 

IV. Outputting system information by source module

The system is composed of a variety of protocol modules, board drivers, and configuration modules. The system information can be classified, filtered, and output by source module. Some source module names and descriptions are shown in Table 1-3.

Table 1-3 Source module list

Module name

Description

8021X

802.1X module

ACL

Access Control List module

ARP

Address Resolution Protocol module

BGP

Border Gateway Protocol module

CFM

Configuration File Management module

CLST

Cluster Configuration module

CMD

Command line module

default

Default setting of all modules

DEV

Device management module

DHCP

Dynamic Host Configuration Protocol module

DNS

Domain Name System module

ETH

Ethernet module

FTPS

FTP Server module

GARP

Generic Attribute Registration Protocol module

HABP

Huawei Authentication Bypass Protocol module

HWCM

Huawei Configuration Management MIB module

IFNET

Interface management module

IP

Internet Protocol module

ISIS

Intermediate System-to-Intermediate System intra-domain routing information exchange protocol module

LAGG

Link Aggregation module

LINE

Line module

MSDP

Multicast Source Discovery Protocol module

MSTP

Multiple Spanning Tree Protocol module

NAT

Network Address Translation module

NTP

Network Time Protocol module

PKI

Public Key Infrastructure module

OSPF

Open Shortest Path First module

POE

Power over Ethernet module

QoS

Quality of Service module

RDS

Radius module

RM

Routing Management module

RMON

Remote monitor module

SHELL

User interface module

SNMP

Simple Network Management Protocol module

SOCKET

Socket module

SSH

Secure Shell module

SYSMIB

System MIB module

TAC

Terminal Access Controller module

TELNET

Telnet module

UDPH

UDP Helper module

VFS

Virtual File System module

VLAN

Virtual Local Area Network module

VOS

Virtual Operating System module

VRRP

Virtual Router Redundancy Protocol module

VTY

Virtual Type Terminal module

 

To sum up, the major task of the information center is to output the three types of information of the modules onto the ten channels in terms of the eight severity levels and according to the user’s settings, and then redirect the system information from ten channels to the six output destinations.

1.1.2  System Information Format

System information has the following format:

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

 

&  Note:

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

l      Before the <priority>, there may be a %, “#, or * followed with a space, indicating log, alarm, or debugging information respectively.

l      This format is the standard format of system information. After the system information is sent to the log host, the displayed format depends on the tools you use to view the logs.

 

Below is an example of the format of log information to be output to a log host:

% <188>Sep 28 15:33:46:235 2005 MyDevice SHELL/5/LOGIN: Console login from aux0

What follows is a detailed explanation of the fields involved:

I. Priority

The priority is calculated using the following formula: facility*8+severity, in which facility represents the logging facility name and can be configured when you set the log host parameters. The facility ranges from local0 to local7 (16 to 23 in decimal integers) and defaults to local7. The facility is mainly used to mark different log sources on the log host, query and filter the logs of the corresponding log source. Severity ranges from 0 to 7. Table 1-1 details the value and meaning associated with each severity.

Note that there is no space between the priority and timestamp fields and that the priority takes effect only when the information has been sent to the log host.

II. Timestamp

Timestamp records the time when system information is generated to allow users to check and identify system events.

Note that there is a space between the timestamp and sysname (host name) fields.

III. Sysname

Sysname is the system name of the current host. You can use the sysname command to modify the system name. (Refer to System Maintaining and Debugging for details)

Note that there is a space between the sysname and module fields.

IV. Module

The module field represents the name of the module that generates system information. You can enter the info-center source ? command in system view to view the module list.

Refer to Table 1-3 for module name and description.

Between “module” and “level” is a “/”.

V. Level (Severity)

System information can be divided into eight levels based on its severity, from 0 to 7. Refer to Table 1-1 for definition and description of these severity levels. Note that there is a forward slash between the levels (severity) and digest fields.

VI. Digest

The digest field is a string of up to 32 characters, outlining the system information.

Note that there is a colon between the digest and content fields.

VII. Content

This field provides the content of the system information.

1.2  Configuring Information Center

1.2.1  Information Center Configuration Task List

Complete the following tasks to configure information center:

Task

Remarks

Setting to Output System Information to the Console

Optional

Setting to Output System Information to a Monitor Terminal

Optional

Setting to Output System Information to a Log Host

Optional

Setting to Output System Information to the Trap Buffer

Optional

Setting to Output System Information to the Log Buffer

Optional

Setting to Output System Information to the SNMP NMS

Optional

Configuring Synchronous Information Output

Optional

 

1.2.2  Setting to Output System Information to the Console

I. Setting to output system information to the console

To do…

Use the command…

Remarks

Enter system view

system-view

—

Enable information center

info-center enable

Optional

Enabled by default

Name the channel with a specified channel number

info-center channel channel-number name channel-name

Optional

Refer to Table 1-2 for default channel names.

Configure the channel through which system information can be output to the console

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

Optional

System information is output to the console by default, with channel 0 as the default channel.

Configure the output rules of system information

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

Optional

Refer to Table 1-4 for the default output rules of system information.

Configure the format of the time stamp

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

Optional

The time stamp format for log, trap and debugging information is date by default.

 

Table 1-4 Default output rules for different output destinations

Output destination

Modules allowed

LOG

TRAP

DEBUG

Enabled/
disabled

Severity

Enabled/
disabled

Severity

Enabled/
disabled

Severity

Console

default (all modules)

Enabled

warnings

Enabled

debugging

Enabled

debugging

Monitoring terminal

default (all modules)

Enabled

warnings

Enabled

debugging

Enabled

debugging

Log host

default (all modules)

Enabled

informational

Enabled

debugging

Disabled

debugging

Trap buffer

default (all modules)

Disabled

informational

Enabled

warnings

Disabled

debugging

Log buffer

default (all modules)

Enabled

warnings

Disabled

debugging

Disabled

debugging

SNMP NMS

default (all modules)

Disabled

debugging

Enabled

warnings

Disabled

debugging

 

II. Enabling the display of system information on the console

After setting to output system information to the console, you need to enable the associated display function to display the output information on the console.

Follow these steps in user view to enable the display of system information on the console:

To do…

Use the command…

Remarks

Enable the monitoring of system information on the console

terminal monitor

Optional

Enabled on the console and disabled on the monitoring terminal by default.

Enable the display of debugging information on the console

terminal debugging

Required

Disabled by default

Enable the display of log information on the console

terminal logging

Optional

Enabled by default

Enable the display of trap information on the console

terminal trapping

Optional

Enabled by default

 

1.2.3  Setting to Output System Information to a Monitor Terminal

System information can also be output to a monitor terminal, which is a user terminal that has login connections through the AUX, or VTY user interface.

I. Setting to output system information to a monitor terminal

To do…

Use the command…

Remarks

Enter system view

system-view

—

Enable information center

info-center enable

Optional

Enabled by default

Name the channel with a specified channel number

info-center channel channel-number name channel-name

Optional

Refer to Table 1-2 for default channel names.

Configure the channel through which system information can be output to a monitor terminal

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

Optional

System information is output to the monitor terminal by default with channel 1 as the default channel.

Configure the output rules of the system information

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

Optional

Refer to Table 1-4 for the default output rules of the system information.

Configure the format of the time stamp

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

Optional

By default, the time stamp format for log, trap and debugging information is date.

 

II. Enabling the display of system information on a monitor terminal

After setting to output system information to a monitor terminal, you need to enable the associated display function in order to display the output information on the monitor terminal.

Follow these steps to enable the display of system information on a monitor terminal:

To do…

Use the command…

Remarks

Enable the monitoring of system information on a monitor terminal

terminal monitor

Required

Enabled on the console disabled on the monitoring terminal by default.

Enable the display of debugging information on a monitor terminal

terminal debugging

Required

Disabled by default

Enable the display of log information on a monitor terminal

terminal logging

Optional

Enabled by default

Enable the display of trap information on a monitor terminal

terminal trapping

Optional

Enabled by default

 

1.2.4  Setting to Output System Information to a Log Host

To do…

Use the command…

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