Answer the following questions?

Packet switching versus circuit switching:

Example:

1 Mb/s link

each user:

100 kb/s when active

active 10% of time

circuit-switching:

10 users

packet switching:

with 35 users, probability > 10 active at same time is less than .0004 *

Q: how did we get value 0.0004?

Q: what happens if > 35 users?

: N users 1 Mbps link