COMPUTER NETWORKING

Detailed explanation-1: -Question: Which type of inter-VLAN communication design requires the configuration of multiple subinterfaces? Explanation: The router-on-a-stick design always includes subinterfaces on a router. When a multilayer switch is used, multiple SVIs are created.

Detailed explanation-2: –The first inter-VLAN routing solution relied on using a router with multiple Ethernet interfaces. Each router interface was connected to a switch port in different VLANs. The router interfaces served as the default gateways to the local hosts on the VLAN subnet.

Detailed explanation-3: -The “router-on-a-stick” inter-VLAN routing method overcomes the limitation of the legacy inter-VLAN routing method. It requires only one physical Ethernet interface to route traffic between multiple VLANs on a network.

Detailed explanation-4: -The router-on-a-stick method requires you to create a subinterface for each VLAN to be routed. A subinterface is created using the interface interface id. subinterface id global configuration mode command. The subinterface syntax is the physical interface followed by a period and a subinterface number.