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Three-layer network model Applications Control Hardware.

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Presentation on theme: "Three-layer network model Applications Control Hardware."— Presentation transcript:

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6 Three-layer network model
Applications Control Hardware

7 Control is flexibly separable
Applications Control Hardware

8 Control is flexibly separable
Diversification Applications Fragmentation Control Hardware

9 Applications Applications Applications Control Control Hardware Hardware

10 SBC AOL Applications Applications Applications Control Control
Hardware Hardware

11 Earthlink Applications Applications Applications Control Control
Hardware Hardware

12 Corp. LAN Applications Applications Applications Control Control
Hardware Hardware

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