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Networking Components

Networking Components. Matilda Roach CECS 5460 Assignment 3. Presentation Preview. Hubs Switches Routers Bridges Gateways Firewalls Wireless APs Network Diagram. Hub (aka Repeaters)…. connect multiple devices through wire (usually cat 5, 5e, or 6)

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Networking Components

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  1. Networking Components Matilda Roach CECS 5460 Assignment 3

  2. Presentation Preview • Hubs • Switches • Routers • Bridges • Gateways • Firewalls • Wireless APs • Network Diagram

  3. Hub (aka Repeaters)… • connect multiple devices through wire (usually cat 5, 5e, or 6) • broadcast incoming network traffic to all connected devices • operate on OSI layer 1 • are used as a low-cost means to connect local devices • $8-$50

  4. Hub Function Diagram

  5. Switches... • connect multiple devices through wire (usually cat 5, 5e, or 6) • broadcast more intelligently than hubs based on managed network segmenting • operate mostly on OSI layer 2 • are used as a more efficient means to connect local devices • $20-$250

  6. Switch Function Diagram

  7. Routers... • relay information based on IP address both through wire and wirelessly • assign IP addresses to the devices connected to it • operate on OSI layer 3 • provide a means for multiple devices to connect to an outside network through a single point • $40-$150

  8. Router Function Diagram

  9. Bridges… • connect wired network segments intelligently • do not assign IP addresses but do learn them to operate more efficiently • operate usually on OSI layer 2 • $25-$80

  10. Bridge Function Diagram

  11. Gateways… • relay information between two networks operating on different protocols • operate on varying OSI layers • provide a network entry point and exit point • in the home, routers usually act as a gateway as well • $40-$300

  12. Gateway Function Diagram

  13. Firewalls… • can be hardware or software based • block unwanted traffic to and from the network • usually operates on the first 3 OSI layers • wide range of cost which depends on the implementation (software can be free and is usually cheap; hardware can be very expensive) • software firewalls are primarily used in the home; enterprise systems will use hardware

  14. Firewall Function Diagram

  15. Wireless APs… • allow wireless devices to an otherwise wired network • do not assign IP addresses but instead act as a means of passing information • in enterprise situations, Wireless APs are used for wireless coverage in systems with centralized authentication and IP distribution • $20-$100

  16. Wireless AP Function Diagram

  17. Network Diagram

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