Provides instructions for upgrading and downgrading Cisco Catalyst 9000 Series Switches and Smart Switches, guiding you through planning, preparation, and execution. It covers pre-upgrade validation, upgrade procedures, post-upgrade verification, troubleshooting, and rollback steps to ensure reliable software transitions
Overview
Pre-upgrade Readiness and Validation
Upgrading Devices
Post-Upgrade Validation
Troubleshooting Device Upgrades
Rolling Back Device Upgrades
Explains rollback procedures for device upgrades, outlining conditions that warrant rollback and providing step-by-step instructions to restore previous device states when upgrades fail.