Which TWO attributes are required to establish an OSPF adjacency on a broadcast multi-access network? (Choose two)
Trap 1: Identical OSPF reference bandwidths
Reference bandwidth is a local calculation parameter and does not need to match for adjacencies.
Trap 2: Matching process IDs
OSPF process IDs are locally significant and do not need to match between routers.
- A
Membership in the same OSPF area
Neighbors must be configured in the same OSPF area.
- B
Matching hello and dead timer intervals
Hello and dead intervals must match between neighbors to form an adjacency.
- C
Identical OSPF reference bandwidths
Why wrong: Reference bandwidth is a local calculation parameter and does not need to match for adjacencies.
- D
Matching process IDs
Why wrong: OSPF process IDs are locally significant and do not need to match between routers.
- E
Identical router priority values
Wait, priority values do not need to be identical; in fact, having different priorities helps elect a DR/BDR cleanly.