In this Video, we will discuss step by step OSPF configuration. For this, we will demonstrate OSPF configuration using GNS. The same commands can be used to perform the OSPF configuration on Cisco Packet Tracer or real Cisco routers.
Higlights about OSPF
OSPF understands variable-length subnet masks (VLSMs) and allows for summarization.
OSPF uses multicasts (not broadcasts) to send updates.
OSPF converges much faster than RIP, because OSPF propagates changes immediately.
OSPF allows for load balancing with up to six equal-cost paths.
OSPF has authentication available. (RIPv2 does also, but RIPv1 does not.)
OSPF allows for tagging of external routes injected by other autonomous systems.
OSPF configuration, monitoring, and troubleshooting have a far greater IOS tool base than RIP.
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