Broadcast networks are better suited for OSPF. Configuring an OSPF network is a tedious task since each router needs to communicate with the other by sending updates in order to create a topology table. If this does not happen then this topology table is not created or fabricated which can affect the overall stability of the network.
In a network, if several equal cost routes exist, traffic by default becomes equally distributed. But in real life scenarios, that is hardly the case. It is just very rare. A large network has multi-cost routes burdening the network. Thus the network, rather than working as a single large network, creates multiple small or minute networks. The backbone or the central point of such a network is termed as Area 0.
In an OSPF network, the Designate Router (DR), as well as the Backup Designated Router (BDR), receives multicast updates from the Area 0. In large networks, it becomes difficult to connect the routers in the most efficient manner so that adjacency is the least. This is achieved by sending the updates to specific DRs and BDRs than sending it to every router in the network. This can be done by tweaking the values in Area 0. The video tells you how this is done in most effective, clear, and simplified manner.
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