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Network Infrastructures
Border Gateway Protocol (BGP)

Border Gateway Protocol (BGP)

Welcome to the Border Gateway Protocol (BGP) section. As the protocol driving internet routing between autonomous systems (AS), BGP is essential for network professionals. This guide simplifies complex concepts and provides detailed insights, configuration examples, and best practices.

Key Topics Covered

  • Introduction to BGP:

    • Understanding BGP and Its Role in Internet Routing
    • Differences between IGP and EGP
    • Autonomous Systems and AS Numbers

  • BGP Operation and Attributes:

    • Path Attributes (AS_PATH, NEXT_HOP, MED, Local Preference)
    • Route Selection Criteria
    • Path Vector Protocol Mechanism

  • Configuring BGP:

    • Basic BGP Configuration
    • eBGP and iBGP Differences and Configurations
    • BGP Neighbor Establishment
    • Route Aggregation and Filtering

  • Advanced BGP Features:

    • Route Reflectors and Confederations
    • Multiprotocol BGP (MP-BGP)
    • BGP Communities and Route Policies

  • BGP Troubleshooting and Optimization:

    • Common Issues and Debugging Techniques
    • Best Practices for Stability and Scalability
    • Optimizing BGP Convergence and Performance

Master BGP concepts to confidently design, implement, and manage inter-AS routing solutions.