Link-State Operation of OSPF

Posted: 21st June 2020 by ccna7guru in ENSA

To maintain routing information, OSPF routers complete a generic link-state routing process to reach a state of convergence. The figure shows a five router topology. Each link between routers is labeled with a cost value. In OSPF, cost is used to determine the best path to the destination. The following are the link-state routing steps that are completed by a router:

  1. Establish Neighbor Adjacencies
  2. Exchange Link-State Advertisements
  3. Build the Link State Database
  4. Execute the SPF Algorithm
  5. Choose the Best Route
 Establish Neighbor Adjacencies
Exchange Link-State Advertisements
Build the Link State Database
Execute the SPF Algorithm
Choose the Best Route

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