I have been trying to teaching myself about internet protocols, and I learned how to calculate the end to end delay for a packet switched network from this website (1c): http://www.ics.uci.edu/~keldefra/teaching/spring2013/uci_cs132/problemsets/CS132_EECS148_ProblemSet2_Solution.pdf
However, what happens if h bytes is added to each packet when it is being transmitted? In the example WITHOUT adding a header each packet size is (message size / number of packets) bits, so do I just do everything the same, except considering each packet size to be ((message size + header size)/ number of packets) ?
I'm essentially just not sure if the header is added only ONCE by the initial sender, or if it is added by each link, can you guys clarify this for me ?
(If this is not the right stack exchange site to post it on, could someone refer me to an applicable site?)