Consider an IP packet which includes 8,000 bytes of data. (a) The packet is to b
ID: 3685276 • Letter: C
Question
Consider an IP packet which includes 8,000 bytes of data.
(a) The packet is to be transmitted over a network that can allow a maximum of 4,000 bytes of data per packet, and will therefore have to be fragmented. Show the values of the fragment offset, and M fields in the IP header of each of the fragments that will enable them to be reassembled at the receiver.
(b) Downstream from the above network, each of the above fragements has to traverse a network that can allow a maximum of 1000 bytes of data per packet. Show the values of the fragment offset, and M fields in the IP header of each of the fragments that will enable them to be reassembled at the receiver.
In both parts, use the minimum number of fragments
Explanation / Answer
Ans A) MF OffSet Data 0 0 8000 bytes MF OffSet Data 1 0 3980 MF OffSet Data 1 498 3980 MF OffSet Data 0 995 40 Ans B MF OffSet Data 0 0 8000 bytes MF OffSet Data 1 0 980 MF OffSet Data 1 123 980 MF OffSet Data 1 245 980 MF OffSet Data 1 368 980 MF OffSet Data 1 491 980 MF OffSet Data 1 614 980 MF OffSet Data 1 737 980 MF OffSet Data 1 860 980 MF OffSet Data 0 983 160