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
Updated: April 10, 2026
Explains how devices use new SUDI99 certificates for device-specific authentication, details migration and backward-compatibility behavior, and provides GUI and CLI procedures to disable migration or verify SUDI certificate status.
Explains what SUDI certificates are, their role in secure authentication, and the enhancements brought by SUDI99 certificate support.
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