Follow the below steps to upgrade the SUP without any downtime.
To perform an FSU, perform this task:
Step 1
Router# copy source_device:source_filename {disk0 | disk1}:target_filename
Or:
Router# copy source_device:source_filename sup-bootflash:target_filename
Or:
Router# copy source_device:source_filename slavedisk0:target_filename
Or:
Router# copy source_device:source_filename slavesup-bootflash:target_filename
Copies the new Cisco IOS image to bootflash on both supervisor engines.
Step 2
Router# config terminal
Router(config)# config-register 0x2102
Router(config)# boot system flash device:file_name
Configures the supervisor engines to boot the new image.
Step 3
Router# copy running-config start-config
Saves the configuration.
Step 4
Router# hw-module {module num} reset
Reloads the redundant supervisor engine and brings it back online (running the new version of the Cisco IOS software).
Note Before reloading the redundant supervisor engine, make sure you wait long enough to ensure that all configuration synchronization changes have completed.
Step 5
Router# redundancy force-switchover
Conducts a manual switchover to the redundant supervisor engine. The redundant supervisor engine becomes the new active supervisor engine running the new Cisco IOS image. The modules are reloaded and the module software is downloaded from the new active supervisor engine.
The old active supervisor engine reboots with the new image and becomes the redundant supervisor engine.
Note To perform an EHSA to RPR FSU, use the reload command in Step 5.
Router# config terminal
Router(config)# config-register 0x2102
Router(config)# boot system flash disk0:image_name
Router# copy running-config start-config
Router# hw-module reset
Router# redundancy force-switchover
Router#
Copying Files to the Redundant Supervisor Engine
Use the following command to copy a file to the disk0: device on a redundant supervisor engine:
Router# copy source_device:source_filename slavedisk0:target_filename
Use the following command to copy a file to the bootflash: device on a redundant supervisor engine:
Router# copy source_device:source_filename slavesup-bootflash:target_filename
Use the following command to copy a file to the bootflash: device on a redundant MSFC:
Router# copy source_device:source_filename slavebootflash:target_filename
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