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Network Connectivity: LANs, Backbone Networks & VLANs

Learn about connecting devices like repeaters, hubs, bridges, and switches in LANs, backbone networks, and virtual LANs. Understand the configurations for bus and star backbone networks and the advantages of Virtual LANs. Explore IEEE standards and improve your network management skills.

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Network Connectivity: LANs, Backbone Networks & VLANs

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  1. Chapter 16 Connecting LANs,Backbone Networks, and Virtual LANs

  2. 16.1 Connecting Devices Repeaters Hubs Bridges Two-Layer Switches

  3. Figure 16.1Connecting devices

  4. Figure 16.2Repeater

  5. Note: A repeater connects segments of a LAN.

  6. Note: A repeater forwards every frame; it has no filtering capability.

  7. Note: A repeater is a regenerator, not an amplifier.

  8. Figure 16.3Function of a repeater

  9. Figure 16.4Hubs

  10. Note: A bridge has a table used in filtering decisions.

  11. Figure 16.5Bridge

  12. Note: A bridge does not change the physical (MAC) addresses in a frame.

  13. Figure 16.6Learning bridge

  14. Figure 16.7Loop problem

  15. Figure 16.8Prior to spanning tree application

  16. Figure 16.9Applying spanning tree

  17. Figure 16.10Forwarding ports and blocking ports

  18. 16.2 Backbone Networks Bus Backbone Star Backbone Connecting Remote LANs

  19. Note: In a bus backbone, the topology of the backbone is a bus.

  20. Figure 16.11Bus backbone

  21. Note: In a star backbone, the topology of the backbone is a star; the backbone is just one switch.

  22. Figure 16.12Star backbone

  23. Figure 16.13Connecting remote LANs

  24. Note: A point-to-point link acts as a LAN in a remote backbone connected by remote bridges.

  25. 16.3 Virtual LANs Membership Configuration IEEE Standard Advantages

  26. Figure 16.14A switch connecting three LANs

  27. Figure 16.15A switch using VLAN software

  28. Figure 16.16Two switches in a backbone using VLAN software

  29. Note: VLANs create broadcast domains.

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