OSPF Versus RIP in a Large Internetwork
The best way to understand the intricacies of the OSPF protocol is to compare it with a more familiar interior routing protocol: the Routing Information Protocol version 1 (RIPv1). OSPF implements a Dijkstra Shortest Path First algorithm to populate a routing table, whereas RIPv1 uses the Bellman-Ford distance vector algorithm. Here is a list of the fundamental differences between and features of the RIP and OSPF interior routing protocols:
OSPF converges a lot faster than RIPv1 because it propagates changes immediately. This results in more timely and accurate routes as well as fewer packets being lost while the network topology is converging.
RIPv2 and OSPF both support Variable Length Subnet Mask (VLSM), ...
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