R3303-HP HSR6800 Routers Fundamentals Configuration Guide

134
Ste
p
Command Remarks
2. Configure the exception
handling method for the
system.
system-failure { maintain | reboot }
By default, the system uses the
reboot method when an exception
occurs.
The system always reboots an
interface card or the auxiliary CPU
system when an exception occurs
to them.
In an IRF fabric, the exception
handling method applies to all
MPUs, but the MPUs handle system
exceptions independently without
affecting one another or the IRF
fabric.
Rebooting the device
CAUTION:
• A device reboot can interrupt network services.
• To avoid data loss, use the save command to save the current configuration before a reboot.
• Use the display startup and display boot-loader commands to verify that you have correctly set the
startup configuration file and the main system software image file. If the main system software image file
has been corrupted or does not exist, the device cannot reboot. You must re-specify a main system
software image file, or power off the device and then power it on so the system can reboot with the
backup system software image file.
You can reboot the device by using one of the following methods to recover from an error condition:
• Reboot the device immediately at the CLI.
• At the CLI, schedule a reboot to occur at a specific time and date or after a delay.
• Power off and then power on the device. This method might cause data loss, and is the
least-preferred method.
Reboot at the CLI enables easy remote device maintenance.
Rebooting devices immediately at the CLI
If an HSR6802, HSR6804, or HSR6808 has only one MPU, rebooting the MPU causes the device to
reboot. If the device has two MPUs, rebooting the active MPU causes the active MPU to reboot and an
active/standby switchover. You cannot use the reboot command to reboot a standby MPU. To reboot a
standby MPU, use the slave restart command (see High Availability Command Reference).
To reboot a device in standalone mode, execute the following command in user view: