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Differentiated Services in the Internet

Differentiated Services in the Internet. Writer ： BrianE.Carpenter and Kathleen Nichols Presenter ：杨大生. Background. Wireline telephone network and packet switching network Previous Qos approaches IP precedence and type of service ST Integrated services A Fresh approach.

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Differentiated Services in the Internet

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  1. Differentiated Services in the Internet Writer：BrianE.Carpenter and Kathleen Nichols Presenter：杨大生

  2. Background Wireline telephone network and packet switching network Previous Qos approaches IP precedence and type of service ST Integrated services A Fresh approach

  3. Motivating Diffserv’ s Approach • Objective of Qos • Control of resources • Basic Mechanisms of Forwarding • Building end-to-end services • Quantifying

  4. Diffserv: Fitting An Architectural Framework to the Internet (1) • 1 Overview • 2 Separation of Control and Forwarding

  5. Diffserv: Fitting An Architectural Framework to the Internet (2) • 3 Defining the Forwarding Path Primitives • Basic Requirement • Diffserv’s Mark • Using the Mark

  6. Diffserv: Fitting An Architectural Framework to the Internet (3) • 4 Control Plane Options • Cloud-Based QoS Control • ConnectingNetworkClouds

  7. PDBs: Structuring Aggregates To Meet Expectations • Each PDB has measurable, quantifiable attributes that can be used to describe what happens to its packets as they enter and cross the DSdomain.

  8. Requirements For Allocation And Configuration(1) • ControlPlaneFunctionality • Time Scale Differences • Static Versus Dynamic • Allocation

  9. Requirements For Allocation And Configuration(2) • GeneralComponents • Host • Network Cloud • Allocator • EdgeRouter • Request

  10. Thank You!

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