Transcript CCNA 3 Module 3 Single

CCNA 3 v3.0 Module 2
Single-Area OSPF
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Purpose of This PowerPoint
• This PowerPoint primarily consists of the Target
Indicators (TIs) of this module in CCNA version
3.0.
• 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.
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To Locate Instructional Resource Materials
on Academy Connection:
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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!
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Objectives
• Link-state routing protocol
• Single-area OSPF concepts
• Single-area OSPF configuration
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Overview of Link-State and Distance Vector
Routing
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Link-State Routing Features
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How Routing Information Is Maintained
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Link-State Routing Protocol Algorithms
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Advantages and Disadvantages of LinkState Routing
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Comparing Distance Vector and Link-State
Routing
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OSPF Overview
OSPF is becoming the preferred IGP
protocol when compared with RIPv1 and
RIPv2 because it is scalable.
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OSPF Terminology
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More OSPF Terminology
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Comparing OSPF Link State with Distance
Vector Routing Protocols
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Shortest Path Algorithm
The best path is the lowest-cost path.
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OSPF Network Types
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OSPF Hello Protocol
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Steps in the Operation of OSPF
Discover neighbors
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Steps in the Operation of OSPF
Elect DR and BDR on Multi Access Network
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Steps in the Operation of OSPF
Selecting the Best Route
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Basic OSPF Configuration
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Basic OSPF Configuration
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Configuring OSPF Loopback Address and
Router Priority
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Setting OSPF Priority
The priorities can be set to any value from 0 to 255. A value
of 0 prevents that router from being elected. A router with
the highest OSPF priority will win the election for DR.
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Modifying OSPF Cost Metric
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Configuring OSPF Authentication
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Configuring OSPF Timers
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OSPF - Propagating a Default Route
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Common OSPF Configuration Issues
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Verifying OSPF Configuration
• show ip protocol
• show ip route
• show ip ospf interface
• shop ip ospf
• show ip ospf neighbor detail
• show ip ospf database
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The debug and clear Commands for OSPF
Verification
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