A network administrator is preparing to update the operating system software across a fleet of centralized wireless LAN controllers (WLCs) managing access points across several corporate sites. Lab validation of the new firmware version has been successfully completed. To minimize operational risk and prevent widespread connectivity issues caused by undiscovered software bugs during full-scale rollout, which deployment strategy should the administrator implement next?
- Perform a phased pilot deployment by updating a single non-critical controller site first and monitoring system stability before upgrading the remaining production WLCs.Answer
- BDeploy the software update simultaneously across all production controllers during an off-peak window to eliminate configuration drift between sites.
- CRestore a differential system image backup to the active controllers immediately prior to executing the software update process.
- DReconfigure all access points to point to a static Virtual IP (VIP) address rather than controller IP addresses prior to initializing the software download.
Answer
Perform a phased pilot deployment by updating a single non-critical controller site first and monitoring system stability before upgrading the remaining production WLCs.
Performing a phased pilot deployment tests software changes in a controlled, live environment with reduced risk. If unforeseen issues occur, only a small subset of users is affected, allowing the organization to halt further deployment and roll back easily.
Step-by-Step Solution
Key Concept
Pilot and Phased Software Deployment
Estimated Time:1m 30s