Hub
It is a layer 1 device, it is a dummy device, it always uses broadcast for communication , in hub bandwidth is always shared mode, and data transmission in bits format.
Switch
It is a layer 2 devices ,it is an intelligent device it is hardware based, generally used for connecting single topology (Segment), it always works with flooding and Unicast in switch data transmission in frame format.
It is a layer 1 device, it is a dummy device, it always uses broadcast for communication , in hub bandwidth is always shared mode, and data transmission in bits format.
Switch
It is a layer 2 devices ,it is an intelligent device it is hardware based, generally used for connecting single topology (Segment), it always works with flooding and Unicast in switch data transmission in frame format.
| Hub | Switch |
| 1. Hub is a layer 1 device | 1. Switch is a layer 2 and 3 device |
| 2. It is not an intelligent device, it is an dummy device | 2. It is an Intelligent device |
| 3. It work with bits | 3. It work with frame |
| 4. Used broadcast for communication | 4. Used Flooding and unicast for communication |
| 5. Bandwidth is shared | 5. Each port of the switch fixed bandwidth |
| 6. It supports Half-duplex communication | 6. Its supports Full duplex communication |
| 7. In hub 1 broadcast and 1 collision use | 7. In switch 1 broadcast and multiple collision use , depend on port |
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