Ask Me Anything Event
Welcome to the Cisco Community Ask Me Anything conversation. Submit your questions from Friday, June 21, 2024 through Friday, July 12, 2024. Our colleagues Saurabh Khillare, and Absar UI Farooq will be waiting to assist you and resolve any questions that have not been clarified, or answer any new questions that you may have. We are waiting for you!
More about this event:
Join us for an Ask Me Anything (AMA) event where you can dive deep into Cisco Catalyst Center Software Image Management (SWIM)!
What is it?• Cisco Catalyst Center inventory offers various automation capabilities. One of them is Software Image upgrades using Software Image Management (SWIM).
• Using SWIM users can upgrade, downgrade or SMU patch their network devices managed on Catalyst Center inventory. In matter of few clicks we can perform image upgrades on upto 100 devices in a go.
• We can distribute the golden image on device flash during production hours too and schedule activation at non business hours or in maintenance window.
Get Expert Advice!
• This AMA session is your chance to get expert insights on this powerful feature.
• Whether you're a seasoned network pro or just starting out, feel free to ask any questions you have about SWIM, image repository or Cisco Catalyst Center in general.
Official Resources:
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Our experts
Saurabh Khillare Technical Consulting Engineer |
Absar Ul Farooq Technical Consulting Engineer |
When performing SWIM on a device, Catalyst Center performs initial readiness checks using a built-in script. However, users have the option to include additional custom checks if needed. On the software update page, you can click to add a new custom check.
This action will prompt you to input the commands for the check, specify the device type, and choose when during operations the check should occur. You have the flexibility to apply the check to both distribution and activation tasks, either before or after each operation.
For instance, suppose a user defines a custom check for a 9300 switch, scheduled both before and after distribution and activation tasks during an image update. If the pre-distribution or post-distribution check fails, Catalyst Center will halt all subsequent SWIM workflows and abort them. Although the image may have been transferred to the switch's flash, the entire workflow stops after copying the image, preventing the activation task from proceeding.
Alternatively, if a custom check is defined specifically for post-activation operations and it fails, Catalyst Center will not abort the task since the device has already upgraded and is operational with the new image. However, image update task will be marked as successful but the post check failure will be recorded under the checks tab in Image update status.
During the import process, the system determines image integrity by comparing the software and hardware platform checksum value of the image that you are importing to the checksum value identified for the platform in the Known Good Values (KVG) file to ensure that the two values match.
If you encounter the message "unable to verify" when importing an image to the Image repository, it indicates that the Catalyst Center cannot verify the image's integrity. To check if the KGV file is present on the Catalyst Center, navigate to System > Settings > Integrity Verification.
If the file is not present, it can be manually uploaded to the Catalyst Center or fetched from the Cisco Trust center. By default, the Catalyst Center attempts to fetch this file automatically every day.
