What is one of the steps required for configuring a Layer 3 switch for inter-VLAN routing?

What is one of the steps required for configuring a Layer 3 switch for inter-VLAN routing?

• A. Enable VLAN trunking on all ports
• B. Enter "no switchport" on the port connected to the router
• C. Configure the spanning tree protocol
• D. Set all switch ports to access mode

Answer: (B)

To configure a Layer 3 switch for inter-VLAN routing, one essential step involves entering the command "no switchport" on the port connected to the router. This command effectively transforms the switch port from a Layer 2 interface into a Layer 3 interface, enabling routing capabilities on that port. By disabling the switchport functionality, you allow the Layer 3 switch to operate with IP routing protocols and facilitate communication between different VLANs. This step is crucial because inter-VLAN routing requires the switch to handle Layer 3 protocols; without converting the port to a Layer 3 interface, the switch would only operate at Layer 2, and inter-VLAN communication wouldn't be possible. The Layer 3 switch must also have the appropriate VLAN interfaces configured to ensure that it can route traffic between the VLANs correctly.

To configure a Layer 3 switch for inter-VLAN routing, one essential step involves entering the command "no switchport" on the port connected to the router. This command effectively transforms the switch port from a Layer 2 interface into a Layer 3 interface, enabling routing capabilities on that port. By disabling the switchport functionality, you allow the Layer 3 switch to operate with IP routing protocols and facilitate communication between different VLANs.

This step is crucial because inter-VLAN routing requires the switch to handle Layer 3 protocols; without converting the port to a Layer 3 interface, the switch would only operate at Layer 2, and inter-VLAN communication wouldn't be possible. The Layer 3 switch must also have the appropriate VLAN interfaces configured to ensure that it can route traffic between the VLANs correctly.