Networks and Delay
 Kurose & Ross, Chapter 1, Problem P6
 Kurose & Ross, Chapter 1, Problem P23
 Kurose & Ross, Chapter 1, Problem P25
 Kurose & Ross, Chapter 1, Problem P26
 Kurose & Ross, Chapter 1, Problem P27

Kurose & Ross, Chapter 1, Problem P31

Use the following network and the convention that 1 kB = 10^{3} bytes and 1 MB = 10^{6} bytes.

Node A transmits a stream of 1 kB packets to node C. Assuming no other traffic in the network, explain why there will never be any queueing delay at node B.

Draw a diagram that represents the stream of packets over time, using the example covered in class.

How long would it take to transfer a 1 MB file, divided into 1 kB packets, from A to C? Which type of delay dominates?

If both links are upgraded to a rate of 1 Gbps, how long would it take to transfer a 1 MB file from A to C? Which type of delay dominates now?


Use the following network and the convention that 1 kB = 10^{3} bytes and 1 MB = 10^{6} bytes.

Node A transmits 1000 packets, each of size 1 kB, to node C. Explain why there will be queueing delay at node B.

Draw a diagram that represents the stream of packets over time, using the example covered in class.

Derive a formula for the queueing delay for packet k What is the largest number of packets the queue will ever hold?

How long would it take to transfer a 1 MB file, divided into 1 kB packets, from A to C? Does the queueing delay affect transfer time?
