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Chapter 3 frame relay

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  • Graphic 3.1.1.1 (frame relay)
  • Graphic 3.1.2.1 Graphic 3.1.2.2
  • Graphic 3.1.3.1
  • Graphic 3.1.4.1 Graphic 3.1.4.2
  • Graphic 3.1.5.4
  • Graphic 3.2.1.1 & 3.2.1.2
  • Graphic 3.2.2.1
  • Graphic 3.3.1.1
  • Graphic 3.3.2.1 & 3.3.2.2
  • Graphic 3.3.3.1
  • Graphic 3.4.1.2
  • Graphic 3.4.2.1
  • Graphic 3.4.3.1

Transcript

  • 1. Frame Relay Accessing the WAN – Chapter 3ITE I Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 1
  • 2. Objectives  Describe the fundamental concepts of Frame Relay technology in terms of Enterprise WAN services including Frame Relay operation, Frame Relay implementation requirements, Frame Relay maps, and LMI operation.  Configure a basic Frame Relay PVC including configuring and troubleshooting Frame Relay on a router serial interface and configuring a static Frame Relay map.  Describe advanced concepts of Frame Relay technology in terms of Enterprise WAN services including Frame Relay sub- interfaces, Frame Relay bandwidth and flow control.  Configure an advanced Frame Relay PVC including solving reachability issues, configuring Frame Relay sub-interfaces, verifying and troubleshooting Frame Relay configuration.ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 2
  • 3. Describe the Fundamental Concepts of Frame Relay Technology  Describe how Frame Relay is used to provide WAN services to the EnterpriseITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 3
  • 4. Describe the Fundamental Concepts of Frame Relay Technology  Describe how Frame Relay uses virtual circuits to carry packets from one DTE to anotherITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 4
  • 5. Describe the Fundamental Concepts of Frame Relay Technology  Explain how Frame Relay encapsulation worksITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 5
  • 6. Describe the Fundamental Concepts of Frame Relay Technology  Describe the types of topologies that are used for implementing Frame Relay in different environmentsITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 6
  • 7. Describe the Fundamental Concepts of Frame Relay Technology  Describe how a router attached to a Frame Relay network uses LMI status messages and inverse ARP queries to map VCs to layer 3 network IP AddressesITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 7
  • 8. Configure a Basic Frame Relay PVC  Configure a basic Frame Relay PVC on a router serial interfaceITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 8
  • 9. Configure a Basic Frame Relay PVC  Configure a static Frame Relay mapITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 9
  • 10. Describe Advanced Concepts of Frame Relay Technology  Explain the reachability issues associated with the Frame Relay NBMA topologyITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 10
  • 11. Describe Advanced Concepts of Frame Relay Technology  Describe how to implement bandwidth control in the Frame Relay technologyITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 11
  • 12. Describe Advanced Concepts of Frame Relay Technology  Describe how to implement flow control in Frame Relay technologyITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 12
  • 13. Configure an Advanced Frame Relay PVC  Explain the steps to configure point-to-point subinterfaces on a physical interfaceITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 13
  • 14. Configure an Advanced Frame Relay PVC  Describe the commands used for verifying Frame Relay operationITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 14
  • 15. Configure an Advanced Frame Relay PVC  Describe the steps for troubleshooting a Frame Relay configurationITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 15
  • 16. Summary  Frame relay is the most widely used WAN technology because it: –Provides greater bandwidth than leased line –Reduces cost because it uses less equipment –Easy to implement  Frame relay is associated with layer 2 of the OSI model and encapsulates data packets in a frame relay frame  Frame relay is configured on virtual circuits –These virtual circuits may be identified by a DLCI  Frame relay uses inverse ARP to map DLCI to IP addressesITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 16
  • 17. Summary  Configuring frame relay requires –Enable frame relay encapsulation –Configuring either static or dynamic mapping –Considering split horizon problems that develop when multiple VCs are placed on a single physical interface  Factor affecting frame relay configuration –How service provider has their charging scheme set up  Frame relay flow control –DE –FECN –BECNITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 17
  • 18. Summary  The following commands can be used to help verify frame relay configuration –Show interfaces –Show frame-relay lmi –Show frame-relay pvc ### –Show frame-relay map  Use the following command to help troubleshoot a frame relay configuration –Debug frame-relay lmiITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 18
  • 19. ITE 1 Chapter 6 © 2006 Cisco Systems, Inc. All rights reserved. Cisco Public 19