Networked Life: 20 Questions and Answers by Mung Chiang Chapter 13: How does traffic get through the Internet? Problems 13.1 Packet switching (a) Statistical multiplexing Suppose you have a 10 Mbps link shared by many users. Each user of the link generates 1 Mbps of data 10% of the time, and is idle 90% of the time. If we use a circuit switched network, and the bandwidth allocation is equal, how many users can the link support? Call this number N. Now consider a packet switched network. Say we have Musers in total, and we want the probability of a user being denied service to be less 1%. Write down the expression that must be solved in the form off M, N) 0,01. Solve this numerically for M. (IIint: Use the binomial CDF.) (b) Resource pooling We will consider modeling a shared resource and see what happens when both the demand for the