Before you shut the power off to a routing platform that has two Routing Engines or before you remove the master Routing Engine, you must first halt the backup Routing Engine and then halt the master Routing Engine. Otherwise, you might need to reinstall the JUNOS software. You can use the request system halt both-routing-engines command on the master Routing Engine, which first shuts down the master Routing Engine and then shuts down the backup Routing Engine. To shut down only the backup Routing Engine, issue the request system halt command on the backup Routing Engine.
If you halt the master Routing Engine and do not power it off or remove it, the backup Routing Engine remains inactive unless you have configured it to become the master when it detects a loss of keepalive signal from the master Routing Engine.
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Note: To restart the router, you must log in to the console port (rather than the Ethernet management port) of the Routing Engine. When you log in to the console port of the master Routing Engine, the system automatically reboots. After you log in to the console port of the backup Routing Engine, press Enter to reboot it. |
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Note: If you have upgraded the backup Routing Engine, first reboot it and then reboot the master Routing Engine. |
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