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CCDP ARCH Quick Reference by Michael Watkins, Kevin Wallace

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Chapter 5. Data Center Design for the Enterprise

Here we consider enterprise data center design and discuss the three layers of the data center architecture. Modular versus one-rack unit access switch designs are compared, as are the options for scaling the data center for high availability.

Core and Aggregation Layer Infrastructure Design

The three layer data center design is as follows:

  • Core layer: Composed of the high-speed packet-switching backplane
  • Aggregation layer: Provides service module integration, Layer 2 domain definitions, spanning-tree processing, and default gateway redundancy
  • Access layer: Provides physical connection for servers to the network

Data center core layer design: Core layer allows for high-speed packet switching ...

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