The Cisco TACACS+ on a Cisco Nexus Series Switch must authenticate any user attempting to access the device and fail over to the local account
if the TACACS+ sever becomes unavailable.
Which command accomplishes these goals?
The commandaaa authentication login default group ISE localconfigures the Cisco Nexus Series Switch to use TACACS+ for authentication by default and specifies a fallback to local authentication if the TACACS+ server becomes unavailable.This ensures that users are authenticated against the TACACS+ server when it is available, but allows them to use local switch credentials if the server cannot be reached, meeting the requirement for failover to local account1.
Cisco documentation on configuring TACACS+ for Cisco Nexus Series Switches provides detailed steps and explanations for setting up authentication and ensuring failover to local accounts
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