Task 2.2 OSPF Neighbors
My rack is behaving differently from SG. BB2 is elected DR for the broadcast domain, thus peering between R1 and R2 is only 2 way as long BB2 is up. Once link to BB2 is shut down on R2, only then will R1 and R2 form full adj. In addition DR election seems to be preemptive.
Rack6R1(config-router)#do sh ip ospf nei
Neighbor ID Pri State Dead Time Address Interface
22.214.171.124 1 2WAY/DROTHER 00:00:38 126.96.36.199 BVI1
188.8.131.52 1 FULL/BDR 00:00:39 184.108.40.206 BVI1
220.127.116.11 1 FULL/DR 00:00:36 18.104.22.168 BVI1