Consider the scenarios illustrated in Figures 2.12 and 2.13. Assume the rate of the institutional network is Rl and that of the bottleneck link is Rb . Suppose there are N clients requesting a file...

Consider the scenarios illustrated in Figures 2.12 and 2.13. Assume the rate

of the institutional network is Rl

and that of the bottleneck link is Rb

. Suppose

there are N clients requesting a file of size L with HTTP at the same time.

For what values of Rl

would the file transfer takes less time when a proxy is

installed at the institutional network? (Assume the RTT between a client and

any other host in the institutional network is negligible.)