telecom • networking • design

an EventHelix.com blog


1 Comment

OSPF Router Startup and Link State Update

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

Advertisements