Chapter 9: Transport layer

Chapter 9: Transport layer

1. Transport Layer Protocols

   • Data transport
     • Transport layer function
       • It is responsible for establishing a temporary communication session between two applications and transmitting data between them.
     • Responsibilities of the transport layer
     • Conversation Multiplexing
     • Reliability of the transport layer
     • TCP
     • Proper transport layer protocol for proper application
     • UDP
       • It provides the basic functions to deliver data segments between the appropriate applications.
   • TCP and UDP Overview
     • TCP features
     • TCP header
     • CPU Features
     • UDP header
     • Multiple and independent conversations
     • Port numbers
     • Pairs of sockets
     • Port Number Groups
     • The netstat command

2. TCP AND UDP

   • TCP communication process
     • TCP server processes
     • TCP connection establishment
     • End of the TCP session
     • TCP three-way link analysis
   • Reliability and flow control
     • TCP Reliability: Orderly Delivery
     • TCP flow control: window size and acknowledgments
     • TCP flow control: congestion prevention
   • UDP communication
     • Comparison of low overhead and UDP reliability
     • UDP datagram reassembly
     • UDP server processes and requests
     • UDP client processes
   • TCP or UDP
     • Applications that use TCP
     • Applications that use UDP