CCNA 3.7: Compare and contrast interior and exterior routing protocols


Interior routing protocols serve a different purpose than exterior routing protocols.  Interior routing protocols discover paths between networks whereas exterior routing protocols route between autonomous systems.


Study Notes:

  • Areas introduce heirarchy into network architectures.
  • An autonomous system is essentially a grouping of areas
  • Interior Routing Protocols discover paths between networks
    • RIP
    • EIGRP
    • OSPF
  • Exterior Routing Protocols route between autonomous systems
    • BGP
    • EGP
    • IDRP



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