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| Title | Size | Download |
|---|---|---|
| 01-Basic device management configuration | 98.35 KB |
Performing basic device management
Restrictions and guidelines for configuring the system time
System time configuration tasks at a glance
Setting the system time at the CLI
Obtaining the UTC time through a time protocol
Setting the daylight saving time
Displaying system time information
Setting the system operating mode
Displaying copyright information
Enabling copyright statement display
Displaying detailed copyright information
Restrictions and guidelines for device reboot
Rebooting the device immediately at the CLI
Performing basic device management
Configuring the device name
About this task
A device name (also called hostname) identifies a device in a network and is used in CLI view prompts. For example, if the device name is Sysname, the user view prompt is <Sysname>.
Procedure
1. Enter system view.
system-view
sysname sysname
By default, the device name is H3C.
Configuring the system time
About the system time
Correct system time is essential to network management and communication. Configure the system time correctly before you run the device on the network.
The device can use the following methods to obtain the system time:
· Uses the locally set system time, and then uses the clock signals generated by its built-in crystal oscillator to maintain the system time.
· Periodically obtains the UTC time from an NTP source, and uses the UTC time, time zone, and daylight saving time to calculate the system time. For more information about NTP, see Network Management and Monitoring Configuration Guide.
The system time calculated by using the UTC time from a time source is more precise.
Restrictions and guidelines for configuring the system time
The system time configured by using the clock datetime command takes effect immediately. The time zone or daylight saving time, whether configured or not, are not taken into account.
If you configure or change the time zone or daylight saving time after the device obtains the system time, the device recalculates the system time. To view the system time, use the display clock command.
You can configure the device to use both methods to obtain the system time. For time consistency, however, configure the device to use only one of the methods to obtain the system time. If you configure the device to use both methods, the device uses the manually set system time or the periodically obtained UTC time, whichever is obtained later.
System time configuration tasks at a glance
To configure the system time, perform the following tasks:
1. Configuring the system time
Choose one of the following tasks:
¡ Setting the system time at the CLI
¡ Obtaining the UTC time through a time protocol
2. (Optional.) Setting the time zone
Make sure each network device uses the time zone of the place where the device resides.
3. (Optional.) Setting the daylight saving time
Make sure each network device uses the daylight saving time parameters of the place where the device resides.
4. (Optional.) Displaying system time information
Setting the system time at the CLI
1. Enter system view.
system-view
2. Configure the device to use the local system time.
clock protocol none
By default, the device uses the NTP time source.
If you execute this command multiple times, the most recent configuration takes effect.
3. Return to user view.
quit
4. Set the local system time.
clock datetime time date
By default, the system time is the factory-default time.
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CAUTION: This command changes the system time, which affects execution of system time-related features (for example, scheduled tasks) and collaborative operations of the device with other devices (for example, log reporting and statistics collection). Before executing this command, make sure you fully understand its impact on your live network. |
Obtaining the UTC time through a time protocol
1. Enter system view.
system-view
2. Specify the system time source.
clock protocol { ntp }
By default, the device uses the NTP time source.
If you execute this command multiple times, the most recent configuration takes effect.
3. Configure time protocol parameters.
For more information about NTP configuration, see Network Management and Monitoring Configuration Guide.
Setting the time zone
1. Enter system view.
system-view
2. Set the time zone.
clock timezone zone-name { add | minus } zone-offset
By default, the system uses the UTC time zone.
Setting the daylight saving time
1. Enter system view.
system-view
2. Set the daylight saving time.
clock summer-time name start-time start-date end-time end-date add-time
By default, the daylight saving time is not set.
Displaying system time information
To display system time information, execute the following command in any view:
display clock
This command displays the system time, date, time zone, and daylight saving time.
Setting the system operating mode
About this task
The device can operate in one of the following modes:
· advance—Advanced mode.
· standard—Standard mode.
Supported features and feature specifications vary by system operating mode.
Restrictions and guidelines
Change to the operating mode takes effect after a system reboot.
Procedure
1. Enter system view.
system-view
2. Set the system operating mode.
system-working-mode{ advance | standard }
By default, the device operates in standard mode.
Displaying the system working mode
To display system working mode information, execute the following command in any view:
display system-working-mode
Displaying copyright information
Enabling copyright statement display
About this task
This feature enables the device to display the copyright statement in the following situations:
· When a Telnet or SSH user logs in.
· When a console dial-in user quits user view. This is because the device automatically tries to restart the user session.
Figure 1 shows the copyright statement.
If you disable displaying the copyright statement, the device does not display the copyright statement in any situations.
Figure 1 Copyright statement at the login page
Procedure
1. Enter system view.
system-view
2. Enable copyright statement display.
copyright-info enable
By default, copyright statement display is enabled.
Displaying detailed copyright information
To display detailed copyright information, execute the following command in any view:
display copyright
Configuring banners
About this task
Banners are messages that the system displays when a user logs in.
The system supports the following banners:
· Legal banner—Appears after the copyright statement.
· Message of the Day (MOTD) banner—Appears after the legal banner and before the login banner.
· Login banner—Appears only when password or scheme authentication is configured.
· Shell banner—Appears for a user when the user accesses user view.
The system displays the banners in the following order: legal banner, MOTD banner, login banner, and shell banner.
Banner input methods
You can configure a banner by using one of the following methods:
· Input the entire command line in a single line.
The banner cannot contain carriage returns. The entire command line, including the command keywords, the banner, and the delimiters, can have a maximum of 511 characters. The delimiters for the banner can be any printable character but must be the same. You cannot press Enter before you input the end delimiter.
For example, you can configure the shell banner "Have a nice day." as follows:
<System> system-view
[System] header shell %Have a nice day.%
· Input the command line in multiple lines.
The banner can contain carriage returns. A carriage return is counted as two characters.
To input a banner configuration command line in multiple lines, use one of the following methods:
¡ Press Enter after the final command keyword, type the banner, and end the final line with the delimiter character %. The banner plus the delimiter can have a maximum of 1999 characters.
For example, you can configure the banner "Have a nice day." as follows:
<System> system-view
[System] header shell
Please input banner content, and quit with the character '%'.
Have a nice day.%
¡ After you type the final command keyword, type any printable character as the start delimiter for the banner and press Enter. Then, type the banner and end the final line with the same delimiter. The banner plus the end delimiter can have a maximum of 1999 characters.
For example, you can configure the banner "Have a nice day." as follows:
<System> system-view
[System] header shell A
Please input banner content, and quit with the character 'A'.
Have a nice day.A
¡ After you type the final command keyword, type the start delimiter and part of the banner. Make sure the final character of the final string is different from the start delimiter. Then, press Enter, type the rest of the banner, and end the final line with the same delimiter. The banner plus the start and end delimiters can have a maximum of 2002 characters.
For example, you can configure the banner "Have a nice day." as follows:
<System> system-view
[System] header shell AHave a nice day.
Please input banner content, and quit with the character 'A'.
A
Procedure
1. Enter system view.
system-view
2. Configure the legal banner.
header legal text
3. Configure the MOTD banner.
header motd text
4. Configure the login banner.
header login text
5. Configure the shell banner.
header shell text
Rebooting the device
About device reboot
The following device reboot methods are available:
· Immediately reboot the device at the CLI.
This method allows you to reboot the device remotely.
· Power off and then power on the device. This method might cause data loss, and is the least-preferred method.
Restrictions and guidelines for device reboot
A device reboot might result in a service outage.
For data security, the device does not reboot while it is performing file operations.
Rebooting the device immediately at the CLI
Prerequisites
Perform the following steps in any view:
1. Verify that the next-startup configuration file is correctly specified.
display startup
For more information about the display startup command, see Fundamentals Command Reference.
2. Verify that the startup image files are correctly specified.
display boot-loader
If one main startup image file is damaged or does not exist, you must specify another main startup image file before rebooting the device.
For more information about the display boot-loader command, see Fundamentals Command Reference.
3. Save the running configuration to the next-startup configuration file.
save
To avoid configuration loss, save the running configuration before a reboot.
For more information about the save command, see Fundamentals Command Reference.
Procedure
To reboot the device immediately at the CLI, execute one of the following commands in user view:
reboot [ slot slot-number ] [ force ]
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CAUTION: · A device reboot might result in service interruption. Before configuring this command, make sure you fully understand its impact on your live network. · Use the force keyword to reboot the device only when the system is faulty or fails to start up normally. A forced device reboots might cause file system damage. Before using the force keyword to reboot the device, make sure you understand its impact. |
Restoring the factory-default configuration
About this task
If you want to use the device in a different scenario or you cannot troubleshoot the device by using other methods, use this task to restore the factory-default configuration.
This task does not delete .bin files, license files, or reserved directories customized for a product.
Restrictions and guidelines
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CAUTION: This feature will automatically restore the factory defaults for the device. Before using this command, make sure you fully understand its impact on your live network. |
Procedure
Execute the following command in user view to restore the factory-default configuration for the device:
restore factory-default
Verifying device stability
About this task
The device startup process takes some time. If the values of the status fields do not change to Stable, use this feature to identify the devices that are not in Stable state.
Restrictions and guidelines
As a best practice, execute this command multiple times to identify whether the system is operating stably.
Procedure
To display system stability and status information, execute the following command in any view:
display system stable state
Troubleshooting
If the system is not in stable state, you can use other commands to identify the faulty components. For example:
· Use the display device command to identify the device operating status.
· Use the display system internal process state command in probe view to display service operating status.
