What is the command to set the VLAN of a switch access port?

To set the VLAN of a switch access port, the correct command is designed to specify the operational mode for the port and associate it with a specific VLAN. The command "SW1(config-if)# switchport access vlan vlan-number" accurately reflects the syntax used in Cisco IOS.

The inclusion of "switchport" specifies that you are configuring a Layer 2 switch port, which is crucial since switches operate primarily at Layer 2 for VLAN tagging. The "access" keyword indicates that the port is intended for access mode, allowing only a single VLAN to be assigned to that port. Finally, "vlan vlan-number" assigns the specific VLAN ID to that access port, which ensures that all devices connected to that port will be part of the specified VLAN, thus allowing proper communication and segregation of broadcast domains within the network.

This command is essential for network segmentation and management, as it dictates how traffic is handled for devices connected on that port.