KwickClips Networks and the Internet · 40 sec · free
Which device sends data to all ports?
Short answer. A hub, because it does not know who the data is for.
How does a switch know where to send a packet?
It keeps a table of which MAC address is on which port.
Hub vs switch
| Point | Hub | Switch |
|---|---|---|
| Sends to | All ports | Right port |
| Learns MAC | No | Yes |
| Speed | Slower | Faster |
Remember
| Hub: shouts to all |
| Switch: whispers to one |
One of these shouts your message to everyone. It is the hub. A hub copies a packet to every port. A switch learns Mac addresses. It sends the packet to the right port only. Remember. Hub shouts to all. Switch whispers to one.
This clip is from the full lesson: Network Devices: Modem, Hub, Switch, Router, Gateway and More — 8 minutes, with the tables, the quick answers and the whole lesson in text.
Useful for: CBSE Class 12 Computer Science (083), CBSE Class 12 Informatics Practices (065), CBSE Class 11 Information Technology (802), ICSE Class 10 Computer Applications
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