In multicasting, a source application sends multicast traffic to a group destination address. The hosts interested in receiving this traffic join the specific group address by signaling their upstream devices. The routers then build a tree from the senders to the receivers and portions of the network that do not have receivers do not receive this potentially bandwidth-intense traffic. Examples of multicast applications include:
- Videoconferencing applications
- Data center replication
- Stock tickers
- Routing protocols
Note: The first RIP version used broadcasting to send updates. RIPv2 and RIPng . . .
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