Routing 2 Chapter 3

Routing 2 Chapter 3 - Dynamic Routing CCNA Exploration...

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12 May 2009 S Ward Abingdon and Witney College 1 Dynamic Routing CCNA Exploration Semester 2 Chapter 3
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12 May 2009 S Ward Abingdon and Witney College 2 Topics Dynamic routing protocols and network design Classifying routing protocols Metrics Administrative distance Routing tables Subnetting
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12 May 2009 S Ward Abingdon and Witney College 3 Routing protocols Exterior gateway protocols Between ISPs, between ISP and major client Path vector BGP (border gateway protocol), EGP Interior gateway protocols Within private groups of networks Distance vector Link state OSPF, IS-IS
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12 May 2009 S Ward Abingdon and Witney College 4 Routing protocols Exterior gateway protocols Interior gateway protocols Classful Classless IPv6 Distance vector, open standard
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12 May 2009 S Ward Abingdon and Witney College 5 Routing protocols Exterior gateway protocols Interior gateway protocols Classful Classless IPv6 Distance vector, Cisco proprietary
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12 May 2009 S Ward Abingdon and Witney College 6 Routing protocols Exterior gateway protocols Interior gateway protocols Classful Classless IPv6 Link state
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12 May 2009 S Ward Abingdon and Witney College 7 Routing protocol - purpose Purpose is to add dynamic routes to a router’s routing table. They let routers exchange information about routes. They choose the best route to each known destination and put it in the routing table.
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12 May 2009 S Ward Abingdon and Witney College 8 Static Dynamic Easy to understand and configure Little CPU processing. Uses no bandwidth Needs re-configuring when topology changes Prone to error in configuring Does not scale well to large networks More secure Requires knowledge to configure efficiently CPU processing and memory used Uses bandwidth Adjusts automatically to topology changes Less prone to error Scales well to large networks Less secure
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12 May 2009 S Ward Abingdon and Witney College 9 Autonomous systems An autonomous system (AS) is a collection of networks under a common administration sharing a common routing strategy. Also known as a routing domain. Each AS has a 16 bit autonomous system number.
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Routing 2 Chapter 3 - Dynamic Routing CCNA Exploration...

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