PPT Slide
- Broadcast and multicast are typically built on top of UDP (unacknowledged), not TCP (acknowledged). Losing a few packets may be acceptable for audio/video but not for delivery of software or critical data.
Router awareness and forwarding of information
- Many routers do not forward multicast or broadcast
Firewall issues: affects Internet vs. Intranet operation
- Firewalls do not usually propagate multicast/broadcast
- Encapsulation can be used to tunnel through firewalls
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