| Basis of Comparison | Hub | Switch |
|---|---|---|
| Description | Hub is a networking device that connects the multiple devices to a single network. | A switch is a control unit that turns the flow of electricity on or off in a circuit. |
| Layer | Hubs are used at the physical layer. | Switches are used at the data link layer. |
| Transmission type | Transmission type can be unicast, broadcast or multicast. | Initially, the transmission type is broadcast and then is unicast. |
| Ports | Hub has 4/12 ports. | The switch has 24/48 ports. |
| Transmission mode | Half duplex | Half/Full duplex. |
| Collisions | Collisions occur commonly in a Hub. | No collisions occur in a full duplex switch. |
| Address used for data transmission | Hub uses MAC address for data transmission. | The switch uses a MAC address for data transmission. |
| Data transmission form | Electrical signal is a data transmission form of a hub. | A Frame is a data transmission form of a switch. |
