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A Layered Model of Services and Distributed Applications

A Layered Model of Services and Distributed Applications. The Red Group Fang, Tal, Devin, George Spring 2002 – CS 294-3. General Architecture. Layer 5. Devices. Application Service Provider. Layer 4. Services. Layer 3. Enhanced IP. Layer 2. IP. Layer 1. Access Network.

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A Layered Model of Services and Distributed Applications

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  1. A Layered Model of Services and Distributed Applications The Red Group Fang, Tal, Devin, George Spring 2002 – CS 294-3

  2. General Architecture Layer 5 Devices Application Service Provider Layer 4 Services Layer 3 Enhanced IP Layer 2 IP Layer 1 Access Network

  3. Layer 1: Access Network Core Network WAN MAN Metro Network LAN DSL Cable Modem T1 3G B 802.11 Last Mile Network PAN Car Network Blue Tooth Infrared Home Network P 802.11 ISP Large Enterprise Stock Exchange Company

  4. Layers 2 and 3 Layer 5 Devices Application Service Provider Layer 4 Services Layer 3 Enhanced IP Layer 2 IP Layer 1 Access Network

  5. Layer 4: Service Layer Session layer/Distributed Trigger Composition Layer (Service Selection)/ Coordination Devices Discovery Audio Service Video Service Authentication Billing • PKI – UCB • Ssh-key • Sim card • Credit card • Username/pw • Cookie • Amex Hardware • Access provider • Online site • Credit card • Hotel room

  6. Layer 5: Application Service Provider Application Session Layer Composition Layer / failure recovery Device Detection

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