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Network Infrastructures
Interior Gateway Protocol (IGP)

Interior Gateway Protocol (IGP)

Welcome to the Interior Gateway Protocol (IGP) documentation. This section provides comprehensive coverage of routing protocols designed to operate within an autonomous system. Each protocol’s theory, operational details, configurations, and best practices are clearly presented to ensure ease of understanding.

Key Topics Covered

  • Introduction to IGP:

    • Purpose and Importance of IGPs
    • Difference between IGP and EGP

  • Routing Information Protocol (RIP):

    • Overview and Operation
    • RIP v1 vs. RIP v2
    • Configuration Examples and Troubleshooting

  • Open Shortest Path First (OSPF):

    • Fundamentals of OSPF
    • OSPF Areas and Types (Backbone, Stub, NSSA)
    • OSPF LSA Types and Route Calculation
    • Practical Configuration Examples

  • Intermediate System to Intermediate System (IS-IS):

    • IS-IS Protocol Fundamentals
    • Comparison with OSPF
    • Levels and Areas in IS-IS
    • Configurations and Optimization Techniques

  • Best Practices and Advanced Concepts:

    • IGP Scalability and Stability
    • Route Redistribution and Filtering
    • Troubleshooting Common IGP Issues

Deep dive into each protocol to effectively design, configure, and manage robust internal network routing solutions.