A Link Layer Protocol that use a Link-State (LS) Routing Algorithms implemented with Dijkstra’s Algorithm to perform routing based on the Single Source Shortest Path to all Subnets with itself as a root node.
Individual Link (graph edge) costs used by the algorithm is determined by the network administrator, which can base them on capacity or other factors of choice.
Features
- OSPF offers security by allowing only authenticated Routers to participate in the protocol.
- Supports multicast routing with Multicast OSPF (MOSPF)
- Supports a hierarchy within a single Autonomous System (AS).