An Ethernet packet 1,500 bytes long arrives at a router, which determines that the next destination is an X.25 network. Do the following, being sure to show your calculations and explain your reasons.
a) Assuming that the router decides to fragment the packet into 3 fragments, determine the size of each fragment, and identify their starting byte and end byte. (2.5 marks)
b) Calculate the fragmentation offset for each fragment. (1 mark)
c) Under what specific condition would the router decide not to fragment the packet and in that case how would the packet be treated? Be as precise as possible in your answer (.5 mark)
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