Lecture8.pptx - 1DV702 Network Administration Lecture 8 PERFORMANCE ARCHITECTURE Performance Architecture Background Performance is the set of levels

Lecture8.pptx - 1DV702 Network Administration Lecture 8...

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1DV702 – Network AdministrationPERFORMANCE ARCHITECTURELecture 8
Performance ArchitecturePerformance is the set of levels for capacity, delay, and RMA in a network. It is usually desirable to optimize these levels, either for all (user, application, and device) traffic flows in the network, or for one or more sets of traffic flows, based on groups of users, applications, and/or devices.The performance architecture describes how user, application, device, and existing network requirements for performance (capacity, delay, and RMA) will be met within the planned network.Background
Performance ArchitectureA performance architecture is the set of performance mechanisms to configure, operate, manage, provision, and account for resources in the network that support traffic flows.It shows where these mechanisms are applied within the network, and the sets of internal and external relationships between this and other component architectures.An important part of developing this architecture is determining the performance goals for your networkBackground
Performance ArchitectureControlling traffic inputs to the network (admission and rate controls);Adjusting the baseline performance of the network (traffic or capacity engineering); Controlling all or part of the network for delivery of specific services (prioritizing, scheduling, and conditioning traffic flows); And implementing a feedback loop to users, applications, devices, and management to modify controls as necessary.Background
Performance ArchitectureFor each component architecture it is important to understand why that function is needed for that particular network. Therefore, the requirements and flow specifications and maps provide important input to this process.Toward developing this architecture, we should answer the following questions:Are performance mechanisms necessary for this network?What are we trying to solve, add, or differentiate by adding performance mechanisms to this network?Are performance mechanisms sufficient for this network?Developing Goals for Performance
Performance ArchitectureImproving the overall performance of a network is consistent with the network having single-tier performance.When all users, applications, and/or devices in a network require a similar level of performance, your goal may be to improve performance to everyone. When there are sets of users, applications, and/or devices that require greater performance than others on the same network, performance mechanisms are required to deliver multiple performance levels. Such networks have multi-tier performance.Developing Goals for Performance
Performance ArchitecturePerformance mechanisms are also needed when a customer wants to merge multiple traffic flow types.

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