Please have a look on the question first before answering this question. please give me the different answer form the questions that are already answered other wise i just simply downvote.

In this assignment you should find a TCP based protocol, read and learn how it works. The you should create a document which describes the protocol, what it does and a bit of its history (1 page). Then you should explain the protocol, step by step how it works (at least 2 pages). Add a sequence diagram. Finally, add a conclusion giving some insight about why this protocol is built like this and if there are any possibility of improvement. Do not pick a very small or very large protocol.

Submit a single PDF file. You are not allowed to copy paste from any source. Cite where you have learnt this protocol from.