OSPF Area 1 has two ABRs. One ABR is configured with this range for Area 1: 10.10.0.0/16. The other ABR is not configured with a range for Area 1.
Which type of issue occurs due to this mismatch?
OSPF Area 1 has two ABRs. One ABR is configured with this range for Area 1: 10.10.0.0/16. The other ABR is not configured with a range for Area 1.
Which type of issue occurs due to this mismatch?
When there is a range mismatch between two ABRs in OSPF, they can lose adjacency within the area where the mismatch occurs. As a result, the ABRs must route all traffic to each other through the backbone area, which is Area 0 in OSPF. This situation does not create a discontinuous area or disrupted intra-area routing but rather forces traffic to follow a less efficient path, impacting overall routing efficiency.
I think correct answer is D
Edwin. In order to lose adjacency, there needs to be a mismatch of attributes (i.e. area, subnet, type, MTU, etc.) Network ranges do not apply to that list. Also, best practice recommends dual ABRs create the same range(s) so as to prevent routing loops or inconsistencies with routing in the area