Vlans

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Vlans

  1. 1. CCNA 3 Chapter 9 Virtual LANs By Your Name
  2. 2. Objectives <ul><li>VLAN concepts </li></ul><ul><li>VLAN configuration </li></ul><ul><li>Troubleshooting VLANs </li></ul>
  3. 3. VLANs
  4. 4. VLANs VLANs logically segment switched networks based on an organization's functions, project teams, or applications as opposed to a physical or geographical basis.
  5. 5. Broadcast Domains with VLANs and Routers
  6. 6. Broadcast Domains
  7. 7. Static VLANs
  8. 8. Dynamic VLANs
  9. 9. Port-Centric VLANs
  10. 10. VLAN Configuration
  11. 11. Benefits of VLANs <ul><li>Easily move workstations on the LAN </li></ul><ul><li>Easily add workstations to the LAN </li></ul><ul><li>Easily change the LAN configuration </li></ul><ul><li>Easily control network traffic </li></ul><ul><li>Improve security </li></ul>
  12. 12. VLAN Types
  13. 13. VLAN Tagging
  14. 14. Communicating Between VLANs
  15. 15. VLAN Configuration
  16. 16. Concurrent Transmission
  17. 17. End-to-End VLANs
  18. 18. Static VLANs <ul><li>Moves are controlled and managed. </li></ul><ul><li>There is robust VLAN management software to configure the ports. </li></ul><ul><li>It is not desirable to assume the additional overhead required when maintaining end-station MAC addresses and custom filtering tables. </li></ul>
  19. 19. Verifying VLAN Configuration
  20. 20. Saving a VLAN Configuration Back up using the copy running-config tftp command , or you can use the HyperTerminal Capture Text feature to store the configuration settings.
  21. 21. Deleting VLANs
  22. 22. Troubleshooting VLANs
  23. 23. VLAN Problem Isolation
  24. 24. Problem Isolation in Catalyst Networks
  25. 25. Preventing Broadcast Storms
  26. 26. Troubleshooting VLANs
  27. 27. Keyword Syntax
  28. 28. The show Commands
  29. 29. VLAN Troubleshooting Scenarios Cannot establish a trunk link between a switch and a router
  30. 30. VLAN Troubleshooting Scenarios VTP is not properly propagating VLAN configuration changes.
  31. 31. VLAN Troubleshooting Scenarios Dropped packets and loops

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