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CCNA 4 v3.1 Module 5 Frame Relay

CCNA 4 v3.1 Module 5 Frame Relay. Purpose of This PowerPoint. This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.1. It was created to give instructors a PowerPoint to take and modify as their own. This PowerPoint is:

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CCNA 4 v3.1 Module 5 Frame Relay

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  1. CCNA 4 v3.1 Module 5 Frame Relay

  2. Purpose of This PowerPoint • This PowerPoint primarily consists of the Target Indicators (TIs) of this module in CCNA version 3.1. • It was created to give instructors a PowerPoint to take and modify as their own. • This PowerPoint is: • NOT a study guide for the module final assessment. • NOT a study guide for the CCNA certification exam. • Please report any mistakes you find in this PowerPoint by using the Academy Connection Help link.

  3. To Locate Instructional Resource Materials on Academy Connection: • Go to the Community FTP Center to locate materials created by the instructor community • Go to the Tools section • Go to the Alpha Preview section • Go to the Community link under Resources • See the resources available on the Class home page for classes you are offering • Search http://www.cisco.com • Contact your parent academy!

  4. Objectives

  5. Frame Relay Operation

  6. Frame Relay Switches

  7. Frame Relay Concepts

  8. Virtual Circuits

  9. Local Significance of DLCIs The data-link connection identifier (DLCI) is stored in the Address field of every frame transmitted.

  10. Terminology • The connection through the Frame Relay network between two DTEs is called a virtual circuit (VC). • Virtual circuits may be established dynamically by sending signaling messages to the network. In this case they are called switched virtual circuits (SVCs). • Virtual circuits can be configured manually through the network. In this case they are called permanent virtual circuits (PVCs).

  11. Frame Relay Stack Layered Support

  12. Frame Relay Functions

  13. Bandwidth and Flow Control Bit counter Example 1

  14. Frame Relay Concepts Queue

  15. Frame Relay Concepts

  16. Frame Relay Concepts

  17. Selecting a Frame Relay Topology Full Mesh Partial Mesh Star (Hub and Spoke)

  18. LAPF Frame – Address Field 6-bits 4-bits

  19. Data Link Control Identifier • The 10-bit DLCI associates the frame with its virtual circuit • It is of local significance only - a frame will not generally be delivered with the same DLCI with which it started • Some DLCI’s are reserved

  20. Local Management Interface (LMI) • Three types of LMIs are supported by Cisco routers: • Cisco — The original LMI extensions • Ansi — Corresponding to the ANSI standard T1.617 Annex D • q933a — Corresponding to the ITU standard Q933 Annex A

  21. LMI Frame Format 1 2 1 1 1 1 2 1 Flag Address Control PD CR MT LMI Message FCS Flag

  22. Stages of Inverse ARP andLMI Operation #1

  23. Stages of Inverse ARP and LMI Operation #2

  24. Configuring Basic Frame Relay

  25. Configuring a Static Frame Relay Map

  26. Reachability Issues with Routing Updates in NBMA

  27. Reachability Issues with Routing Updates in NBMA By default, a Frame Relay network provides nonbroadcast multiaccess (NBMA) connectivity between remote sites. An NBMA environment is treated like other multiaccess media environments, where all the routers are on the same subnet.

  28. Frame Relay Subinterfaces

  29. Configuring Point-to-Point Subinterfaces

  30. Verifying Frame Relay • The show interfaces command displays information regarding the encapsulation and Layer 1 and Layer 2 status. It also displays information about the following: • The LMI type • The LMI DLCI • The Frame Relay data terminal equipment/data circuit-terminating equipment (DTE/DCE) type

  31. The show interface Command LMI Status LMI DLCI LMI Type

  32. The show frame-relay lmi Command

  33. The show frame-relay pvc Command

  34. The show frame-relay map Command

  35. Troubleshooting Frame RelayThe debug frame-relay lmi Command PVC Status 0x2 – Active 0x0 – Inactive 0x4 – Deleted

  36. Summary

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