Physics Simulation       Lecture 13B Networking Internet Basics IP - Datagrams TCP - UDP Application Layer Ports Java Networking URL InetAddress Sockets Client-Server RMI Exercises Lectures 1A: Introduction 1B: Java Intro 2A: BuildingBlocks 2B: Objects 3A: More Objects 3B: Exceptions        & Threads 4A: Waves 4B: Nuclear &        Particle 5A: AWT 5B: More AWT       & Graphics 6A:Detectors &       Simulation 6B: LHC/Atlas &      RandomSims     7A: Swing 7B: Java2D 8A: Java Apps 8B: Dialogs &     MoreClasses 9A: Java I/O 9B: Utilities,         Unicode 10A: More     Threading 10B: File     Handling 11A: Array,Print,     Images 11B: SimplePhysics     Simulation 12A: Tips &     Techniques 12B: More Tips &     Techniques 13A: Satellite     Simulations 13B: Intro to Java     Networking 14A: Java Servers 14B: HTTP Server 15A: ServerClient 15B: ServerClient    Expt.Simulation 16A: Course           Review 16B: ExerciseTest         Discussion     Contacts     Description     Exercises     Index     Outline     Q&A     Resources     StudentInfoForm     Student Pages     What's New

Home : Lectures : Lecture 13B : TCP - UDP TCP - UDP Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP) are two separate Internet protocols for the Transport Layer. The Transport Layer attempts to smooth over the problems of the IP layer. The Transport Layer can place packets into the proper order and request retransmission of missing packets (i.e. packets not arriving within a given time). TCP guarantees bytes in correct order. UDP does not guarantee correct order but has lower overhead than TCP. For some applications like audio and video transmission the loss of a few bytes is not noticeable and so they use UDP.

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