Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 26.1.x

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Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 26.1.x

N+1 Hitless Rolling AP Upgrade

Outlines the N+1 hitless rolling AP upgrade process, describing its operations, configuration procedures, and verification methods to ensure seamless AP upgrades without client service interruptions. Outlines site-based rolling AP upgrade functionality in N+1 networks, covering prerequisites, restrictions, use cases, configuration workflows, CLI procedures, hitless software upgrades, and verification steps to ensure seamless AP migration and operational continuity. Provides an overview of new client steering enhancements for access points, including procedures and reference information for deauthenticating clients before an AP image upgrade.