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CCNA 5.0 Planning Guide Chapter 7: Enhanced Interior Gateway Protocol (EIGRP)

Learn the features, operation, and configuration of Cisco's EIGRP protocol for IPv4 and IPv6. Understand the DUAL algorithm and packet formats to achieve fast convergence with low overhead.

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CCNA 5.0 Planning Guide Chapter 7: Enhanced Interior Gateway Protocol (EIGRP)

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  1. CCNA 5.0Planning Guide Chapter 7: Enhanced Interior Gateway Protocol (EIGRP)

  2. Chapter 7: Objectives Describe the features and operation of EIGRP. Examine the different EIGRP packet formats. Calculate the composite metric used by Diffusing Update Algorithm (DUAL) . Describe the concepts and operation of DUAL. Examine the commands to configure and verify basic EIGRP operations for IPv4 and IPv6.

  3. Chapter 7: Overview This chapter introduces the basics of EIGRP: As an advanced distance vector routing protocol developed by Cisco Systems As a distance vector routing protocol that includes features found in link-state routing protocols Can scale to include multiple topologies Provides fast convergence with low overhead How to configure and verify EIGRP for IPv4 and IPv6 How Diffusing Update Algorithm (DUAL) determines the best path

  4. Chapter 7: Activities What activities are associated with this chapter? 7.0.1.2 Class Activity – Classless EIGRP 7.1.2.5 Activity – Identifying the EIGRP Packet Type 7.1.2.6 Video Demonstration – Observing EIGRP Protocol Communications 7.2.2.4 Packet Tracer – Configuring Basic EIGRP with IPv4 7.2.2.5 Lab – Configuring Basic EIGRP with IPv4 7.3.1.4 Activity – Identifying the Steps in Establishing EIGRP Neighbor Adjacencies 7.3.2.7 Activity – Calculating the EIGRP Metric 7.3.3.8 Activity – Determining the Feasible Successor 7.3.4.4 Packet Tracer – Investigating DUAL FSM

  5. Chapter 7: Activities (cont.) What activities are associated with this chapter? 7.4.1.4 Activity – Comparing EIGRPv4 and EIGRPv6 7.4.3.4 Packet Tracer – Configuring Basic EIGRP with IPv6 7.4.3.5 Lab – Configuring Basic EIGRP with IPv6 7.5.1.1 Class Activity – Portfolio RIP and EIGRP

  6. Chapter 7: Packet Tracer Activity Password The password for all the Packet Tracer activities in this chapter is: PT_ccna5

  7. Chapter 7: Assessment Students should complete the Chapter 7, “Assessment” after completing Chapter 7. Worksheets, labs, and quizzes can be used to informally assess student progress.

  8. Chapter 7: New Terms and Commands What terms and commands are introduced in this chapter?

  9. Chapter 7: New Terms and Commands (cont.) What terms and commands are introduced in this chapter?

  10. Chapter 7: New Terms and Commands (cont.) What terms and commands are introduced in this chapter?

  11. Chapter 7: New Terms and Commands (cont.) What terms and commands are introduced in this chapter?

  12. Prior to teaching Chapter 7, the instructor should: Complete Chapter 7, “Assessment.” Ensure this chapter becomes as hand-on as possible. Review the classification of routing protocols – interior, exterior, distance vector and link state – where does EIGRP fit? Identify stress advantages of EIGRP as an advanced distance vector protocol: Triggered updates Bounded updates Partial updates Backup routes – feasible successors Chapter 7: Best Practices

  13. Outline the EIGRP packet types – Hello, Update, Query, and Reply, focusing on Hello and Update. The reserved EIGRP multicast address for IPv4 is 224.0.0.10. The reserved EIGRP multicast address for IPv6 is FF02::A. Present the method used to compute the EIGRP metric emphasizing that bandwidth and delay are primary – other components set to 0. Explain DUAL as the convergence algorithm used by EIGRP. Chapter 7: Best Practices (cont.)

  14. Highlight the three tables used by EIGRP: Neighbor (show ip eigrpneighbors) Topology (show ip eigrptopology) Routing (show ip route) Emphasize the importance of the topology table entries Successor and Feasible Successor Passive and Active Explain FD, RD, and FC Demonstrate how to configure EIGRP for ipv4 Using the router eigrpautonomous-systemcommand Verifying that directly connected networks and wildcard masks are configured Chapter 7: Best Practices (cont.)

  15. To calculate the wildcard mask (also known as the inverse of the subnet mask): 255.255.255.255 255.255.255.248 subnet mask 0. 0. 0 . 7 wildcard mask Demonstrate how EIGRP for IPv6 configuration differs from IPv4: IPv6 routing protocols use link-local addresses for unicast addressing and next-hop addresses and are, therefore, manually configured. The ipv6 unicast-routing command must be configured to allow routing. Use the ipv6 router eigrpautonomous-systemcommand to enable EIGRP. The no shutdown command is required to activate EIGRP for the IPv6 process. Chapter 7: Best Practices (cont.)

  16. Different methods to enable an interface for EIGRP IPv6: Instead of using thenetworkcommand, EIGRP for IPv6 is configured directly on the interface using theipv6 eigrp interface command. Use the show ipv6 protocols command to verify the configuration. Chapter 7: Best Practices (cont.)

  17. Chapter 7: Additional Help For additional help with teaching strategies, including lesson plans, analogies for difficult concepts, and discussion topics, visit the CCNA Community at http://community.netacad.net/web/ccna/files. Instructors could skip these sections; however, they should provide additional information and fundamental concepts to assist the student with the topic.

  18. Chapter 7: Topics Not in ICND2 200–101 This section lists topics covered by this chapter that are NOT listed in ICND 200–101 Blueprint posted at http://www.cisco.com/web/learning/exams/list/icnd2b.html. Instructors could skip these sections; however, they should provide additional information and fundamental concepts to assist the student with the topic.

  19. Chapter 7: Topics Not in ICND2 200-101 What sections of this chapter are NOT in the ICND2 200-101 certification blueprint?

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