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 Chargeable User Identity information is transmitted and processed within RADIUS accounting messages for user session tracking and billing purposes.
This topic explains how Chargeable User Identity (CUI) is used as a unique identifier for clients in RADIUS accounting requests, and how it is processed and transmitted between the controller and AAA server.
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