200-301: Cisco Certified Network AssociateDemo

PortFast is designed for Layer 2 edge ports that connect to end devices, and Cisco switches allow spanning-tree portfast directly on access ports. Trunk ports require separate trunk-specific PortFast configuration, while Layer 3 interfaces and subinterfaces are not normal STP switchport access interfaces. Therefore, the port type that supports the command without extra configuration is an access port.