Refer to the exhibit. An architect must design a solution that uses the direct link between R1 and R2 for traffic from 10.10.10.0/24 toward network 10.10.20.0/24. Which solution should the architect include in the design?
A.
Configure the OSPF cost of the link to a value lower than 30.
B.
Lower the Administrative Distance for OSPF area 0.
C.
Place the link into area 2 and install a new link between R1 and R2 in area 0.
D.
Configure the link to provide multiarea adjacency.
weird question, but only logical answer seems to be D. I would have thought the cost would have an impact, but point-point link is an area 0 at cost 40, which is higher than the other cost in area 0.
OSPF first look at the prefered path list as below and secondly compare path metric:
Intra-Area (O)
Inter-Area (O IA)
External Type 1 (E1)
NSSA Type 1 (N1)
External Type 2 (E2)
NSSA Type 2 (N2)
so most apporiate answer is to configure R1-R2 link as multiarea adjacency.
under the interface configuration mode:
ip ospf network point-to-point
ip ospf multi-area 1
https://www.cisco.com/c/en/us/support/docs/ip/open-shortest-path-first-ospf/118879-configure-ospf-00.html
Am I missing something it is routing in area 0 and you need to avoid using R5 and R6 and go direct in same area. A: Lower the cost of link between the R1-R2, to be less than R1-R5-R6-R2
default path selection preference for OSPF is Intra-Area first before even looking and Inter-Area routes. After alot of reading multi-area adjancy is the only real logical answer
upvoted 4 times
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