6 hours ago
In the question exhibit, the R2 – R1 link is inside Area 1, and the R2 - R3 link is inside Area 0. So from R2’s perspective, the route to R1 over that interface is intra-area (O), not inter-area (O IA).
Because both paths are intra-area, OSPF does not apply the “O preferred over O IA” rule here. It simply compares the total cost..
Because both paths are intra-area, OSPF does not apply the “O preferred over O IA” rule here. It simply compares the total cost..

