Principles of Reliable data transfer important in app.,transport,link layers top-10 list of important networking topics! sending receiver process process 8 data data reliable channel JeAb (a)provided service characteristics of unreliable channel will determine complexity of reliable data transfer protocol(rdt) Transport Layer 3-21 Transport Layer 3-21 Principles of Reliable data transfer  important in app., transport, link layers  top-10 list of important networking topics!  characteristics of unreliable channel will determine complexity of reliable data transfer protocol (rdt)