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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE I Chapter 6 1 Routing with a Distance Vector Protocol in an Enterprise Network Introducing Routing and Switching in the Enterprise – Chapter 5
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 2 Objectives Compare and contrast a flat network and a hierarchical routed topology. Configure a network using RIP. Describe and plan a network using EIGRP. Design and configure a network using EIGRP.
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 3 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Enterprise hierarchy Combination of LAN and WAN technologies DMZ
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 4 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Traffic control Redundant links QoS Packet filtering
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 5 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Star and extended star topologies Mesh topologies Partial mesh Full mesh
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 6 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Building the routing table Exit interface Next hop Administrative distance
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 7 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Directly connected routes Static routes Dynamic routes
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 8 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Advantages of static routing Stub networks Security Lower overhead
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 9 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Static route configuration
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 10 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Summary static routes Floating static routes
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 11 Compare and Contrast a Flat Network and a Hierarchical Routed Topology Default routes Gateway of Last Resort
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 12 Routing Using the RIP Protocol Characteristics of distance vector protocols Hop count metric Advantages and disadvantages
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 13 Routing Using the RIP Protocol Characteristics of RIPv1 Automatically summarizes at classful boundary Broadcasts routing updates every 30 seconds
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 14 Routing Using the RIP Protocol Characteristics of RIPv2 Classless Multicasts updates Provides authentication mechanism
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 15 Routing Using the RIP Protocol RIPv2 configuration Basic commands Authentication Default route redistribution
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 16 Routing Using the RIP Protocol Problem Discontiguous subnets Unnecessary traffic Routing loops Solution No auto-summary Passive-interface Poisoned reverse, split horizon, holddown timer, triggered updates Problems with RIP and their solutions:
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 17 Routing Using the RIP Protocol Verification commands Troubleshooting commands Ping for end-to-end connectivity
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 18 Describe and Plan a Network Using EIGRP Disadvantages of distance vector routing protocols
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 19 Describe and Plan a Network Using EIGRP Compare EIGRP and RIP
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 20 Describe and Plan a Network Using EIGRP Characteristics of EIGRP Composite metric Guaranteed loop-free operation Bounded updates Hello packets
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 21 Describe and Plan a Network Using EIGRP Neighbor table Topology table Routing table
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 22 Describe and Plan a Network Using EIGRP Successors and feasible successors External routes
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 23 Describe and Plan a Network Using EIGRP EIGRP neighbors and adjacencies Hello protocol EIGRP packet types
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 24 Describe and Plan a Network Using EIGRP RTP: Reliable Transport Protocol PDM: Protocol Dependent Module
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 25 Describe and Plan a Network Using EIGRP EIGRP metrics and convergence K values Feasible and reported distance
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 26 Design and Configure a Network Using EIGRP Basic EIGRP configuration Wildcard masks Logging neighbor changes Bandwidth Load balancing
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 27 Design and Configure a Network Using EIGRP EIGRP summarization Parent and child routes Null0 interface Manual summarization
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 28 Design and Configure a Network Using EIGRP Verification commands Troubleshooting commands
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 29 Design and Configure a Network Using EIGRP EIGRP issues and limitations
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 30 Summary Enterprise networks are hierarchical Networks use static and dynamic routing to move information Dynamic routing protocols are classified as either distance vector or link state RIP is a distance vector routing protocol EIGRP is a Cisco proprietary distance vector routing protocol with many advanced features EIGRP works best if its default features are modified to suit the routing situation
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© 2006 Cisco Systems, Inc. All rights reserved.Cisco PublicITE 1 Chapter 6 31
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