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ITAV
Engineering Academy

OSPF Visualiser

Routing

Networking labs

Overview

OSPF neighbors exchange link-state information and each router runs shortest-path first over its link-state database. Path cost is the sum of link costs, not physical hop count alone. Area boundaries and neighbor parameters affect operation; this lesson focuses on cost comparison.

Protocol stages

  1. 1Neighbor adjacency
  2. 2Link-state database
  3. 3Shortest-path first
  4. 4Route installation

Interactive exercise

Knowledge check

A→C direct costs 30. A→B costs 10 and B→C costs 5. Which route has lower OSPF cost?

Answers

Educational model — not real hardware, traffic or official certification.

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