正解:D
Option D is the correct configuration set for initializing VXLAN Tunnel End-Point functionality on a Cisco Nexus 9000 Series platform. This option includes the necessary commands to configure the loopback interface, which is used as the source for the VXLAN Network Virtual Endpoint (NVE) interface, and the NVE interface itself, which is essential for VXLAN operation.
References := For a detailed guide on VXLAN configuration on the Cisco Nexus 9000 Series, you can refer to the Cisco Nexus 9000 Series NX-OS VXLAN Configuration Guide, which provides step-by-step instructions and best practices.