R.1 Suppose the network layer provides the following service. The network layer in the source host accepsts a segment maximum size 1,200 bytes and guarantees to deliver the segment to the transport layer at the destination host. Suppose many network application processes can be running at the destination host.

A. Design the simplest possible transport-layer protocol that will get application data to the desired process at the destination host. Assume the operation system in the destination host has assigned a 4-byte port number to each running application process.

B. Modify this protocol so that I provides a return address to the destination process.

c. In your protovs, does the transport layer have to anything in the core of the computer network?

Jim Kurose and Keith Ross,Computer Networking A Top-Down Approach, Addison-Wesley, Seventh Edition, 2017.

ISBN-13: 978-0-13-359414-0