CCNP ROUTE 642-902. OSPF, or Open Shortest Path First, is a link-state, open-standard, dynamic routing protocol.
OSPF uses an algorithm known as SPF, or Dijkstra’s Shortest Path First, to compute internally the best path to any given route. OSPF is classless and converges fairly quickly, using cost as it’s metric. The Online CCNP Study Guide. SWITCH Training. FREE CCNA LAB. Free CCNA Challenge Labs.