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Cisco Certified Network Associate (CCNA) · Cisco
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802.1x is not an AAA protocol*, I am just clarifying my error. TACACS+ and RADIUS are AAA protocols
802.1x: provides an authentication mechanism to devices wishing to attach to a LAN or WLAN but is not used directly for administrative configuration.
RADIUS (Remote Authentication Dial-In User Service): RADIUS is a networking protocol that provides centralized authentication, authorization, and accounting for users who connect and use a network service. It is commonly used for authenticating users in wireless networks and can be used to control access to the network through access points. TACACS+ (Terminal Access Controller Access-Control System Plus): TACACS+ is a protocol developed by Cisco that provides detailed accounting, authorization, and authentication (AAA) services. It is commonly used to manage users' access to network devices like routers, switches, and access points. It provides more granular control compared to RADIUS, especially in command authorization.