Question $8$

Consider the network depicted in Figure $2.$ Here, we have a sender$,$ a receiver, and $6$ routers. In

this figure, capital letters specify the physical addresses of the devices and numbers specify the

logical addresses of the devices. For example, the device marked as sender has a physical

address A and logical address $10.$

Figure $2$: Network Topology

Similarly, the router connected to the sender has physical address B and logical address $20$ for

the interface that is connected to the sender$.$ Now, consider that process P$1$ of the sending

computer wants to send some data to process $P2$ of the receiving computer. Port addresses of

process P$1$ and P$2$ are Px and Py$,$ respectively. Show the contents of the segments, packets

and frames for transport, network, and data link layers at the sender side of $5$ hops with

appropriate figures. $[10]$