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 This configuration ensures that if AAA servers cannot be reached, the switch will fall back to using the local user database for authentication when accessing the console. The fallback error local keyword specifies that the local database should be used in case of an error in reaching the AAA servers1.

References := For more information on configuring AAA on Cisco MDS switches, you can refer to Cisco’s official documentation and community discussions which provide insights into setting up authentication methods for different access scenarios1. These resources explain how to configure the switch to handle authentication locally when remote AAA servers are not available.

 To meet the requirements of using the secondary interface and then falling back to the primary interface when it becomes available again, the engineer should enable the Uplink failover option in the vNIC properties of the Cisco UCS Cisco Integrated Management Controller (CIMC) network adapter for a standalone Cisco C-Series server. The Uplink failover option allows the vNIC to switch to the secondary interface in case of a failure in the primary interface, and then switch back to the primary interface when it recovers. The Uplink failover option also allows the engineer to configure the Fallback Timeout value, which determines how long the vNIC waits before switching back to the primary interface. In this case, the Fallback Timeout value is set to 600 seconds, which means the vNIC will wait for 10 minutes before falling back to the primary interface. References :=

• Implementing and Operating Cisco Data Center Core Technologies (DCCOR) v1.2, Module 5: Cisco Unified Computing System, Lesson 5.3: Cisco UCS C-Series Servers
• Cisco UCS C-Series Servers Integrated Management Controller GUI Configuration Guide, Release 4.0, Chapter: Configuring Network-Related Settings and Features, Section: Configuring vNICs