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Broadcast, Multicast & Unicast

Beginner

Three types of network addressing

Every network packet has a destination address. There are three fundamental delivery models:

- Unicast — one sender, one receiver (most traffic) - Broadcast — one sender, all devices on the LAN - Multicast — one sender, a specific group of receivers

Each has a different use case and different behavior at switches and routers.

Packets in motion — click to inspect:

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