What Is The Difference Between Ospf And Isis?
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OSPF (Open Shortest Path First) is a link-state routing protocol used to find the best path through a network. It uses a link-state algorithm to build and maintain a topology map of the network, and then uses Dijkstra’s algorithm to find the best path through the network. ISIS (Intermediate System to Intermediate System) is a link-state routing protocol used to exchange routing information between two systems in the same autonomous system. It is based on the ISO/OSI (International Standards Organization/Open Systems Interconnection) reference model and uses the IS-IS (Intermediate System to Intermediate System) protocol for exchanging routing information. Unlike OSPF, which is used for routing within a single autonomous system, ISIS is used for routing between multiple autonomous systems.