Communication Networks: Big PictureOutlineCommunication NetworksSlide 4Slide 5Slide 6Slide 7Slide 8Slide 9Slide 10Slide 11PacketsPackets: Main IdeasTransportFuture ...Slide 16Slide 17Slide 18Slide 19UCBCommunication Networks:Big PictureJean WalrandU.C. Berkeleywww.eecs.berkeley.edu/~wlrUCBOutlineCommunication NetworksPacketsSwitchTransportFutureUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBCommunication NetworksUCBPacketsABA | B | ...B port 2123A | B | ...A | B | ...UCBPackets: Main IdeasThe switches have no memory of packets: scalabilityThe network is independent of the applications: flexibilityThe packet formats and addresses are independent of the technology: extensibilityUCBTransportUCBFuture ...Before: “Simple” NetworkClientServerNetworkPacket TransportUCBFuture ...Now: “Complex” NetworkNetworkApplication and Contents Servers, Caches, Traffic Control,Redirection Agents, ProcessingUCBFuture ...Server LocationServer Allocation (Load Balancing)Traffic Control: Quality ContractClient MobilityRapid Deployment: Self-configurationRole of Optical SwitchesNew Problems:UCBFuture ...Examples:Smart DustUCBFuture ...Examples:Sensor NetworksTemperature around
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