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CIT 440 Communication Network Design

CIT 440 Communication Network Design. Access Network Design. Main Considerations. Applications Premises architecture Access mechanisms Backbone. Cisco Systems Model. Core- Needs to be reliable and fast Distribution- Control Mechanisms Access- Control “who” access the network.

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CIT 440 Communication Network Design

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  1. CIT 440Communication Network Design Access Network Design

  2. Main Considerations • Applications • Premises architecture • Access mechanisms • Backbone

  3. Cisco Systems Model • Core- Needs to be reliable and fast • Distribution- Control Mechanisms • Access- Control “who” access the network

  4. Access Layer Design • Physical Connectivity- xDSL, DS-1, DS-3, Gigabit services, others?? • Protocols- Mixed L2/L3 network or 100 percent ethernet • Switching –vs- Routing- BIG DESIGN QUESTION • QoS- Quality of Service • Fixed –vs- Mobile

  5. Network Topology • Implement 100 Mbps Ethernet segments -vs- 10 Mbps • Implementing a pure switched environment • Add routing and firewall capability at the switch level.

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