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Free IP addressing and routing lessonsIP addressing and routing · Stage 1 · Forwarding and routing · Step 3

Link-state routing and Dijkstra

Flood every router's links to everyone, then let each router compute shortest paths itself. About 15 minutes.

Quick check

What does each router in a link-state protocol flood to the rest of the network?

  1. AThe state and cost of its own links to its neighbours
  2. BIts whole routing table
  3. CCopies of the data packets it forwards
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The state and cost of its own links to its neighbours. Everyone assembles those into the full map.

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