Displaying The Exception Handling Method; Rebooting A Card Or Router - HP FlexNetwork HSR6802 Installation Manual

•
maintain—Maintaining the current status of the failed MPU so that the system does not take
any restoration measures. Some software faults are hard to reproduce, and the printed
information will be lost after the router reboots. In this case, you can maintain the current status
of the router, facilitating fault location.
If the FIP or SAP/OAP module encounters software faults, the solving method is always reboot,
which reboots the failed module.
On a router with two MPUs, rebooting the active MPU triggers an active and standby switchover, and
the former standby MPU takes over. On a router with only one MPU, rebooting the active MPU
reboots the router.
When system faults occur, the system fault solving method applies to only the failed module, and
rebooting the module does not interrupt the other modules.
To configure the exception handling methods:
Step
1. Enter system view.
2. Configure the exception
handling methods.

Displaying the exception handling method

Use the display system-failure command to display the exception handling method.
<Sysname> display system-failure
System failure handling method: reboot

Rebooting a card or router

When upgrading and maintaining the system software image or configuration file for the router, you
need to reboot the router. After you change the operating mode of a MPU or LPU, you must restart
the corresponding module.
To reboot a router, use one of the following methods:
•
Power off and then power on the router. This method might cause data loss, and is the
least-preferred method.
•
Immediately reboot the router at the CLI.
•
Schedule a reboot at the CLI, so the router automatically reboots at the specified time or after
the specified period of time.
The first method is called "cold reboot" or "cold startup". The second and third methods are called
"warm reboot" or "warm startup", and can be used remotely.
For data security, if you reboot the router while the router is performing file operations, the router
does not reboot.
The precision of the rebooting timer is 1 minute. One minute before the rebooting time, the router
prompts "REBOOT IN ONE MINUTE" and reboots in one minute.
If the main startup configuration file does not exist, do not use the reboot command to reboot the
router or the active MPU. In this case, you should specify the main startup configuration file first, and
then reboot the active MPU.
To reboot the router immediately at the CLI:
Command
system-view
system-failure { maintain |
reboot }
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Remarks
N/A
Optional.
By default, the system adopts the reboot
method to handle exceptions.