In this video, we explain the In-Service Software Upgrade (ISSU) process for Cisco 9800 Wireless LAN Controllers (WLC) in High Availability with Stateful Switchover (HA-SSO) configuration. Learn how to perform an ISSU upgrade while ensuring minimal downtime for your wireless network. We also cover how to verify the compatibility of both the running and target release to ensure a smooth and error-free upgrade process, keeping your network stable during the transition. Related links: Cisco C9800 WLC Overview → Cisco Wireless LAN Controllers Documentation → #tabs-35d568e0ff-item-4bd7dc8124-tab?dtid=osclytb001771 What you’ll learn in this video: – How to perform an ISSU upgrade for Cisco 9800 WLC in HA-SSO mode – Steps to verify the compatibility between the running and target releases – Best practices to ensure a smooth WLC upgrade with minimal downtime and service disruption Performing an ISSU upgrade in HA-SSO mode on Cisco 9800 WLC ensures continuous service with minimal disruption to your network. Watch this video to understand how to verify release compatibility and perform the upgrade seamlessly. Learn more: Cisco Official Site → Cisco Products & Services → Cisco Solutions → Contact Us → Follow Us on Social Media: Cisco LinkedIn → Cisco Twitter → Cisco Instagram → Cisco Facebook → Got questions or insights? Drop them in the comments—we'd love to hear from you! Don’t forget to like, subscribe, and hit the bell icon to stay updated on the latest with Cisco. #Cisco #C9800WLC #ISSUUpgrade #HA-SSO #WirelessNetworking #NetworkManagement #TechSolutions #CiscoTechTalk #WLCUpgrade #NetworkCompatibility"