telecom • networking • design

an EventHelix.com blog

OSPF Router Startup and Link State Update

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OSPF (Open Shortest Path First) is a routing protocol that is used as an interior gateway protocol in large enterprises.

Here is a sequence diagram that describes the message exchange that takes place when a new OSPF router comes online. You can click on any message in the flow to see full message contents.

Covered sequence:

  1. OSPF hello message exchange
  2. Master-slave resolution
  3. Router database synchronization
  4. Link state update
OSPF router startup and link status update

OSPF router startup and link status update

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One thought on “OSPF Router Startup and Link State Update

  1. Nice blog! Very interesting. Thanks for this!

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