200-301 - IP Connectivity - Section 3.4

Configure and verify single-area OSPFv2, including neighbor adjacencies, point-to-point and broadcast (DR/BDR) network types, and the router ID.

Bring up OSPFv2 neighbours by matching area, subnet, hello and dead timers, and authentication, and recognise the states an adjacency passes through to FULL. Distinguish point-to-point links, which form a direct adjacency, from broadcast segments, which elect a designated router and backup DR by highest OSPF priority then highest router ID, and confirm how the router ID is chosen when not set manually.

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