Configuring Layer 2 Switching
You can configure Layer 2 switching ports as access or trunk ports. Trunks carry the traffic of multiple VLANs over a single link and allow you to extend VLANs across an entire network. All Layer 2 switching ports maintain MAC address tables.
For more information, see the Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide.