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Introduction to WANs and Routers in CCNA: Key Concepts and Configurations

DESCRIPTION

This module introduces Wide Area Networks (WANs), which connect geographically dispersed locations, such as states or countries. It covers essential WAN devices, services, and data link encapsulation, along with the internal configuration components of routers. Students will learn about end-to-end addressing, path determination, and the distinction between dynamic and static routing. The Academy's hands-on labs provide practical experience with WAN technologies and Cisco 2600 routers, emphasizing terminal emulation setup and DCE serial connections for a comprehensive understanding of WAN operations.

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Introduction to WANs and Routers in CCNA: Key Concepts and Configurations

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Presentation Transcript

  1. CCNA 2 v3.1 Module 1 WANs and Routers

  2. Introduction to WANs • A WAN is a data communications network that spans a large geographic area such as a state, province, or country.

  3. WAN Devices

  4. WAN Services

  5. Data Link Encapsulations

  6. Internal Configuration Components

  7. Routers Connected by WAN Technologies

  8. Path Determination

  9. Internetwork Routers • Any internetwork must include the following: • Consistent end-to-end addressing • Addresses that represent network topologies • Best path selection • Dynamic or static routing • Switching

  10. Academy Approach to Labs • In the academy lab, all the networks will be connected with serial or Ethernet cables and the students can see and physically touch all the equipment. • Devices that make up the WAN cloud are simulated by the connection between the back-to-back DTE-DCE cables.

  11. Router Internal Components

  12. Router Internal Components

  13. Internal Components of a 2600 Router

  14. External Connections on a 2600 Router

  15. Router External Connections

  16. Computer or Terminal Console Connection

  17. Modem Connection to Console or Auxiliary Port

  18. Console Port Connections • Configure terminal emulation software on the PC for the following: • The appropriate com port • 9600 baud • 8 data bits • No parity • 1 stop bit • No flow control • Connect a rollover cable to the router console port (RJ-45 connector). • Connect the other end of the rollover cable to the RJ-45 to DB-9 adapter • Attach the female DB-9 adapter to a PC.

  19. Eight-Pin Connections for Cisco 2600 Series Routers

  20. WAN Types

  21. Router Serial WAN Connectors

  22. DCE Serial Connections

  23. Summary

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