advanced Routing and switching

Deliverable Length:4–5 pagesThe OSI Layer 3 (Network Layer) is one of the layers that perform packet segmentation. TheOSI Layer 3 is roughly equivalent to the Internet Layer of the TCP/IP model and the Layer 4(Transport Layer) of the OSI model is roughly equivalent to the Host-to-Host layer of theTCP/IP model. The above two layers perform network segmentation. Based on the aboveinformation, answer the following questions.(a) Describe in detail how packets are segmented by the Host-to-host layer (Transport Layer)Internet Layer ofthe TCP/IP model.(b) Do all packets arrive at their destination in the order in which they were segmented andtransmitted? Why or why not?(c) Describe how segmented packets are re-arranged or reassembled at the packets’destination to ensure that received segmented packets match the order in which they weresegmented and transmitted.(d) How are errors handled during transmission of segmented packets?(e) What’s the difference between a TCP segment and a TCP packet?