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IPBasic Cisco OSPF Configuration! | CCNA 200-301
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OSPF (Open Shortest Path First), is one of the most used Routing Protocol today. OSPF is a standard based Link-State routing protocol. It is a Classless routing protocol which do not send subnet masks with updates. So, it allows to use VLSM. Open Shortest Path First has similarities with the other Link-State routing protocol IS-IS but it differents from it in many points.
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Open Shortest Path First uses a special algorithm, Dijsktra Alogirthm for route calculations. In other words, it uses Shortest Path First (SPF) method and with this way, the routing calculation is done.
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