OSPF Visualizer

Welcome to OSPF Simulator

Welcome to the OSPF Simulator — a visual and interactive tool for understanding how the OSPF routing protocol works.
With this simulator, you can:

  • 🔨 Build a custom network topology by placing areas and routers on an open grid.
  • 🎯 Watch OSPF convergence happen in real time through neighbor table updates and state machine transitions.
  • 💡 View routing tables that reflect the network's dynamic state.
  • 📦 Send packets across the network and observe how routes are chosen.
  • 🔍 Inspect OSPF packets like Hello packets, DBDs, and LS Updates during convergence.
  • 🔧 Experiment by changing network conditions, such as turning routers off and on, to see how OSPF adapts.

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    • Neighbor Table
    • Routing Table
    • Link State Database
    • Send a Packet

    Packet Transmission Config

    Default Router Behavior

    OSPF Configuration

    Configuration:

    Save Current

    Load

    Edit

    Packet Legend

    • Hello Packet

    • Database Description Packet

    • Link State Request Packet

    • Link State Update Packet

    • Link State Acknowledgement Packet

    Event Log

    Recent Events

    Filters:
    By Router:
    By Time Range: