H3C S5500-EI Series Operating instructions

Brand: H3C

Model: S5500-EI Series

Type: Operating instructions

Operation Manual – Information Center

H3C S5500-EI Series Ethernet Switches Table of Contents

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

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Chapter 1 Information Center Configuration

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

interested in:

z Information Center Overview

z Configuring Information Center

z Displaying and Maintaining Information Center

z 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:

z Log information

z Trap information

z 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.

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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.

z If the threshold is set to 0, only information with the severity being emergencies will

be output;

z 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.)

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Information

channel number

Default channel

name

Default output destination

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

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Module name Description

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

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Module name Description

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:

z The closing set of angel brackets < >, the space, the forward slash /, and the colon

are all required in the above format.

z Before the <priority>, there may be a %, “#, or * followed with a space, indicating log,

alarm, or debugging information respectively.

z 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.

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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:

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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.

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Table 1-4 Default output rules for different output destinations

LOG TRAP DEBUG

Output

destina

tion

Module

allowe

Enable

d/disab

led

Severit

Enable

d/disab

led

Severit

Enable

d/disab

led

Severit

Consol

default

(all

module

Enable

warning

Enable

debuggi

Enable

debuggi

Monitori

terminal

default

(all

module

Enable

warning

Enable

debuggi

Enable

debuggi

Log

host

default

(all

module

Enable

informat

ional

Enable

debuggi

Disable

debuggi

Trap

buffer

default

(all

module

Disable

informat

ional

Enable

warning

Disable

debuggi

Log

buffer

default

(all

module

Enable

warning

Disable

debuggi

Disable

debuggi

SNMP

NMS

default

(all

module

Disable

debuggi

Enable

warning

Disable

debuggi

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

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To do… Use the command… Remarks

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.

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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… 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.

Specify a log host and

configure the parameters

when system information

is output to the log host

info-center loghost

host-ip [ channel

{ channel-number |

channel-name } | facility

local-number ] *

Required

By default, the system

does not output

information to a log host. If

you specify to output

system information to a

log host, the system uses

channel 2 (loghost) by

default.

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To do… Use the command… Remarks

Configure the source

interface through which

log information can be

output to a log host

info-center loghost

source interface-type

interface-number

Optional

No source interface is

configured by default, and

the system selects an

interface as the source

interface.

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

output rules of the system

information.

Configure the format of

the time stamp for log

information

info-center timestamp

loghost { date |

no-year-date | none }

Optional

date by default.

1.2.5 Setting to Output System Information to the Trap Buffer

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 trap buffer and

specify the buffer size

info-center trapbuffer

[ channel

{ channel-number |

channel-name } | size

buffersize ] *

Optional

System information is

output to the trap buffer by

default with a default

channel of channel 3

(known as trapbuffer) and

a default buffer size of

256.

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To do… Use the command… Remarks

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

output rules of the 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.

1.2.6 Setting to Output System Information to the Log Buffer

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 log buffer and

specify the buffer size

info-center logbuffer

[ channel

{ channel-number |

channel-name } | size

buffersize ] *

Optional

System information is

output to the log buffer by

default with a default

channel of channel 4

(known as logbuffer) and

a default buffer size of

512.

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

output rules of the system

information.

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To do… Use the command… Remarks

Configure the format of

the timestamp

info-center timestamp

{ debugging | log | trap }

{ boot | date | none }

Optional

The time stamp format for

log, trap and debugging

information is date by

default.

1.2.7 Setting to Output System Information to the SNMP NMS

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 SNMP

NMS

info-center snmp channel

{ channel-number |

channel-name }

Optional

System information is

output to the SNMP NMS

by default with channel 5

(known as snmpagent) 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

output rules of the system

information.

Configure the format of

the timestamp

info-center timestamp

{ debugging | log | trap }

{ boot | date | none }

Optional

The time stamp format for

log, trap and debugging

information is date by

default.

 Note:

To ensure that system information can be output to the SNMP NMS, you need to make

the necessary configurations on the SNMP agent and the NMS. For detailed

information on SNMP, refer to the SNMP-RMON Configuration part of the manual.

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1.2.8 Configuring Synchronous Information Output

Synchronous information output refers to the feature that if the user’s input is

interrupted by system output such as log, trap, or debugging information, then after the

completion of system output the system will display a command line prompt (in

command editing mode a prompt, or a [Y/N] string in interaction mode) and your input

so far.

This command is used in the case that your input is interrupted by a large amount of

system output. With this feature enabled, you can continue your operations from where

you were stopped.

Follow these steps to enable synchronous information output:

To do… Use the command… Remarks

Enter system view

system-view

—

Enable synchronous

information output

info-center

synchronous

Required

Disabled by default

 Note:

z If you do not input any information following the current command line prompt, the

system does not display any command line prompt after system information output.

z In the interaction mode, you are prompted for some information input. If the input is

interrupted by system output, no system prompt will be made, rather only your input

will be displayed in a new line.

1.3 Displaying and Maintaining Information Center

To do… Use the command… Remarks

Display channel

information for a

specified channel

display channel

[ channel-number |

channel-name ]

Available in any view

Display the

configurations on each

output destination

display info-center

Available in any view

Display the state of the

log buffer and the log

information recorded

display logbuffer [ level severity

| size buffersize ] * [ | { begin |

exclude | include } text ]

Available in any view

Display a summary of

the log buffer

display logbuffer summary

[ level severity ]

Available in any view

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To do… Use the command… Remarks

Display the state of the

trap buffer and the trap

information recorded

display trapbuffer [ size

buffersize ]

Available in any view

Reset the log buffer

reset logbuffer

Available in user view

Reset the trap buffer

reset trapbuffer

Available in user view

1.4 Information Center Configuration Examples

1.4.1 Outputting Log Information to a Unix Log Host

I. Network requirements

z Send log information to a Unix log host with an IP address of 1.2.0.1/16;

z Log information with severity higher than informational will be output to the log

host;

z The source modules are ARP and IP.

II. Network diagram

Figure 1-1 Network diagram for outputting log information to a Unix log host

III. Configuration procedure

Before the configuration, make sure that there is a route between Device and PC.

1) Configuring the device

# Enable information center.

<Sysname> system-view

[Sysname] info-center enable

# Specify the host with IP address 1.2.0.1/16 as the log host, use channel loghost to

output log information (optional, loghost by default), and specify local4 as the logging

facility.

[Sysname] info-center loghost 1.2.0.1 channel loghost facility local4

# Disable the output of log, trap, and debugging information of all modules on the

channel loghost.

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

off trap state off

Caution:

As the default system configurations for different channels are different, you need to

disable the output of log, trap, and debugging information of all modules on the

specified channel (loghost in this example) first and then configure the output rule as

needed so that unnecessary information will not be output.

# Configure the information output rule: allow log information of ARP and IP modules

with severity equal to or higher than informational to be output to the log host.

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

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

2) Configuring the log host

The following configurations were performed on SunOS 4.0 which has similar

configurations to the Unix operating systems implemented by other vendors.

Step 1: Issue the following commands as a root user.

# mkdir /var/log/MyDevice

# touch /var/log/MyDevice/information

Step 2: Edit the file /etc/syslog.conf as a root user and add the following selector/action

pair.

# MyDevice configuration messages

local4.info /var/log/MyDevice/information

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 Note:

Be aware of the following issues while editing the /etc/syslog.conf file:

z Comments must be on a separate line and must begin with the # sign.

z The selector/action pair must be separated with a tab key, rather than a space.

z No redundant spaces are allowed in the file name.

z The device name and the accepted severity of log information specified by the

/etc/syslog.conf file must be identical to those configured on the device using the

info-center loghost or info-center source command; otherwise the log

information may not be output properly to the log host.

Step three: After the log file information has been created and the configuration file

/etc/syslog.conf has been modified, ensure that the configuration file /etc/syslog.conf is

reread:

# ps -ae | grep syslogd

147

# kill -HUP 147

After the above configurations, the system will be able to keep log information in the

related file.

1.4.2 Outputting Log Information to a Linux Log Host

I. Network requirements

z Send log information to a Linux log host with an IP address of 1.2.0.1/16;

z Log information with severity higher than informational will be output to the log

host;

z All modules can output log information.

II. Network diagram

Figure 1-2 Network diagram for outputting log information to a Linux log host

III. Configuration procedure

Before configuration, make sure that there is a route between Device and PC.

1) Configuring the device

# Enable information center.

<Sysname> system-view

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[Sysname] info-center enable

# Specify the host with IP address 1.2.0.1/16 as the log host, use channel loghost to

output log information (optional, loghost by default), and specify local5 as the logging

facility.

[Sysname] info-center loghost 1.2.0.1 channel loghost facility local5

# Disable the output of log, trap, and debugging information of all modules on the

channel loghost.

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

off trap state off

Caution:

As the default system configurations for different channels are different, you need to

disable the output of log, trap, and debugging information of all modules on the

specified channel (loghost in this example) first and then configure the output rule as

needed so that unnecessary information will not be output.

# Configure the information output rule: allow log information of all modules with

severity equal to or higher than informational to be output to the log host.

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

state on

2) Configuring the log host

Step 1: Issue the following commands as a root user.

# mkdir /var/log/MyDevice

# touch /var/log/MyDevice/information

Step 2: Edit the file /etc/syslog.conf as a root user and add the following selector/action

pair.

# MyDevice configuration messages

local7.info /var/log/MyDevice/information

Operation Manual – Information Center

H3C S5500-EI Series Ethernet Switches Chapter 1 Information Center Configuration

1-19

 Note:

Be aware of the following issues while editing the /etc/syslog.conf file:

z Comments must be on a separate line and must begin with the # sign.

z The selector/action pair must be separated with a tab key, rather than a space.

z No redundant spaces are allowed in the file name.

z The device name and the accepted severity of the log information specified by the

/etc/syslog.conf file must be identical to those configured on the device using the

info-center loghost or info-center source command; otherwise the log

information may not be output properly to the log host.

Step 3: After the log file information has been created and the /etc/syslog.conf file has

been modified, issue the following commands to display the process ID of syslogd,

terminate a syslogd process, and restart syslogd using the -r option.

# ps -ae | grep syslogd

147

# kill -9 147

# syslogd -r &

 Note:

Ensure that the syslogd process is started with the -r option on a Linux log host.

After the above configurations, the system will be able to keep log information in the

related file.

1.4.3 Outputting Log Information to the Console

I. Network requirements

z Log information with a severity higher than informational will be output to the

console;

z The source modules are ARP and IP.

II. Network diagram

Figure 1-3 Network diagram for sending log information to the console

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H3C S5500-EI Series Operating instructions

H3C S5500-EI Series Operating instructions

H3C S5500-EI Series Operating instructions

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