Voice and Video Networks
Reserved Circuit Capacity Guarantees Throughput
- Never get less than reserved capacity
- Nothing like congestion on the Internet
Reserved Circuit Capacity is Expensive
- Pay for it whether you use it or not
- Good for voice, because conversations are fairly constant
- Bad for data, because most data transmission is bursty; e.g., in World Wide Web, download, then stare at screen for a long time until next download