MAC Protocol Efficiency
CSMA/CD works well in low traffic LANs
Response time vs. utilization: a good indicator
- Works well when it is under 50% capacity
Examples:
- 10Base-T: 50% capacity x 97% efficiency x 10 Mbps rate
- ? 4.85 Mbps (shared by all computers on the LAN)
- 100Base-T: 80% capacity x 97% efficiency x 100 Mbps
- ? 78 Mbps (total effective rate)