In the provided configuration, the commands are used to configure a Fibre Channel interface on a Cisco Nexus 5000 Series switch. The "interface fc2/3" command is used to enter the interface configuration mode for the specified Fibre Channel interface. The "switchport mode sd" command configures the Fibre Channel interface for synchronization distribution (SD). SD is a feature that allows the distribution of clocking information through the network to synchronize different parts of a system. References: The Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course provides detailed information on configuring Fibre Channel interfaces, including synchronization distribution12. Additional resources can be found in Cisco's data center certification materials3