Operating system chapter 12_2
اسلاید 1: 1NetworkingChapter 12
اسلاید 2: 2Distributed CapabilitiesCommunications architecturesSoftware that supports a group of networked computersNetwork operating systemEach computer has its own private operating systemDistributed operating systemCommon operating system shared by a network of computers
اسلاید 3: 3The Need for a Protocol ArchitectureComputer communicationsExchange of information between computers for the purpose of cooperative actionComputer networkWhen tow or more computers are interconnected via a communication network
اسلاید 4: 4Two ConceptsProtocolUsed for communication between entities in different systemsProtocol architectureBroken into subtasks, each of which is implemented separately
اسلاید 5: 5File Transfer
اسلاید 6: 6The TCP/IP Protocol ArchitectureProtocol suiteFive relatively independent layersPhysicalNetwork accessInternetHost-to-host, or transportApplication
اسلاید 7: 7Physical LayerSpecifying the characteristics of the transmission mediumNature of the signalsData rate
اسلاید 8: 8Network Access LayerConcerned with the exchange of data between an end system and the networkDifferent standardsCircuit switchingPacket switching (frame relay)LANs (Ethernet)
اسلاید 9: 9Internet LayerProcedures for data to traverse different networksImplemented in the end systems and routers
اسلاید 10: 10Transport LayerEnsures all data arrives at the destination and in the order sentTCP
اسلاید 11: 11Application LayerSupports various user applicationExample: file transfer
اسلاید 12: 12TCP Header
اسلاید 13: 13UDP
اسلاید 14: 14IP
اسلاید 15: 15IPv6Provides enhancements over existing IPDesigned to accommodate higher speeds of a mix of data streams, graphic and videoProvides more addressesIncludes 128-bits for addressesIP uses 32-bit address
اسلاید 16: 16IPv6
اسلاید 17: 17TCP/IP Concepts
اسلاید 18: 18Protocols and Headers
اسلاید 19: 19Items in the HeaderDestination network addressFacilities requestsExample: priority
اسلاید 20: 20TCP.IP ApplicationsSimple Mail Transfer Protocol (SMTP)File Transfer ProtocolTELNET
اسلاید 21: 21SocketsEnable communication between a client and serverConcatenation of a port value and an IP address form a socket
اسلاید 22: 22Two Types of SocketsStream socketsUse TCPReliable data transferDatagram socketsUse UDPDelivery is not guaranteed
اسلاید 23: 23Socket Setupsocket() commandThree parametersProtocol family is always PF_INET for TCP/IPType specifies whether stream or datagramProtocol specifies either TCP or UDP
اسلاید 24: 24
اسلاید 25: 25
نقد و بررسی ها
هیچ نظری برای این پاورپوینت نوشته نشده است.