Updating The Configuration File; Verifying The Software Version; Saving The Configuration File; Completing The Update Process - Cisco ASR 5500 Administration Manual

Standby Backup Chassis
As the system reboots, it loads the new operating system software image and its corresponding CLI
configuration file using the new boot stack entry configured earlier.
After the system reboots, establish a CLI session and enter the show version command to verify that the active
software version is correct.
Optional for PDSN: If you are using the IP Pool Sharing Protocol during your upgrade, refer to Configuring
IPSP Before the Software Upgrade in the PDSN Administration Guide.

Updating the Configuration File

Features in the new operating system may require changes to the configuration file. These changes can be
done manually or facilitated by custom scripts prepared by Cisco TAC. Make whatever changes are necessary
prior to saving the updated configuration file.

Verifying the Software Version

After the system has successfully booted, verify that the new StarOS version is running by executing the Exec
mode show version command.

Saving the Configuration File

Use the Exec mode save configuration command to save the currently running configuration to the /flash
device and to an off-chassis location (external memory device or network URL). The off-chassis copy assures
that you will have a fallback, loadable configuration file should a problem be encountered.

Completing the Update Process

Repeat the following tasks to complete the upgrade process on the standby secondary chassis:
• Synchronizing File Systems, on page 299
• Performing Health Checks, on page 298
• Performing SRP Checks, on page 298
• Performing BGP Checks, on page 299
ASR 5500 System Administration Guide, StarOS Release 19
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Interchassis Session Recovery