Suppose users share a 1 Mbps link. Also suppose that each user alternates
between periods of activity (when it generates data at a constant rate of 100
Kbps) and periods of inactivity (when it generates no data). Suppose further that a
user is active only 10 percent of the time (and is idle drinking coffee during the
remaining 90 percent of the time). With circuit switching, 100 Kbps must be
Things to Remember:
1 Mbit link
Each user:
l 100 Kbps when
"active"
l active 10% of tie
Circuit Switching: 10 users
Packet switching: with 35
users, probability >10 active