Homework

Overhead of Header Fields

One implicit assumption in the example above was that each packet contains $100\%$ data. However, in reality, that is not the case, because each packet must contain certain header fields in order for the network to tranport it$.$ Analogically, when mailing a mail using USPS, you must put the mailing address of the receiver on the envelope or your mail won't go far.

Due to the overhead cost caused by the header fields. too much message segmentation is considered harmful. In fact, since typically the same amount of header fields have to be added to each packet, the more such packets are $($i$.$e$.$ the more message segmentation carried out by the source$),$ overally speaking, the more overhead costs from such header fields will be$.$

Now, using the same network and assumptions in Section $0\mathrm{.}1$ above, if the source node

breaks the message into $8$ packets of the same size adds $10$ bits of header fields to each packet

and sends the packets one by one into the network what is the end$-$to$-$end delay?

On a piece of paper, solve this problem with clear and unambiguous handwriting and a supporting diagram

as shown in the example in Section $0\mathrm{.}3$ above. Ensure to circle your final answer to the problem. Take a picture of your paper and name it "delay$-$homework.pdf$".$