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- Table of Contents
-
- 18-Network Management and Monitoring Configuration Guide
- 00-Preface
- 01-Ping and tracert configuration
- 02-System debugging configuration
- 03-NQA configuration
- 04-NTP configuration
- 05-PTP configuration
- 06-SNMP configuration
- 07-RMON configuration
- 08-Event MIB configuration
- 09-Sampler configuration
- 10-Mirroring configuration
- 11-NetStream configuration
- 12-IPv6 NetStream configuration
- 13-NetAnalysis configuration
- 14-sFlow configuration
- 15-Packet capture configuration
- Related Documents
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| Title | Size | Download |
|---|---|---|
| 02-System debugging configuration | 54.46 KB |
Configuring system debugging
About system debugging
The device supports debugging for the majority of protocols and features, and provides debugging information to help users diagnose errors.
The following switches control the display of debugging information:
· Module debugging switch—Controls whether to generate the module-specific debugging information.
· Screen output switch—Controls whether to display the debugging information on a certain screen. Use terminal monitor and terminal logging level commands to turn on the screen output switch. For more information about these two commands, see information center commands in System Management Command Reference.
As shown in Figure 1, the device can provide debugging for the three modules 1, 2, and 3. The debugging information can be output on a terminal only when both the module debugging switch and the screen output switch are turned on.
Debugging information is typically displayed on a console. You can also send debugging information to other destinations. For more information, see information center configuration in System Management Configuration Guide.
Figure 1 Relationship between the module and screen output switch
Debugging a feature module
Restrictions and guidelines
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CAUTION: Output of excessive debugging messages increases the CPU usage and downgrades the system performance. To guarantee system performance, enable debugging only for modules that are in an exceptional condition. |
When debugging is complete, use the undo debugging all command to disable all the debugging functions.
Procedure
1. Enable debugging for a module.
debugging module-name [ option ]
By default, debugging is disabled for all modules.
This command is available in user view.
2. (Optional.) Display the enabled debugging features.
display debugging [ module-name ]
This command is available in any view.
