What are two reasons to use the ip ospf database filter all out command? (Choose two.)
A.
to maintain a centralized OSPF database on a single master device
B.
to avoid flooding LSAs on low-speed links
C.
to ensure a consistent OSPF database across the network
D.
to selectively filter OSPF routes without disrupting the SPF algorithm
E.
to filter only type 7 LSAs from an OSPF area
F.
to enable OSPF to send triggered updates
A & B are correct.
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B & D
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R7(config-if)#ip ospf database-filter all out so you are not be able to selectivly filter OSPF routes
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A- looks very strange …
If I understand well this command only filter LSA during flooding and sync. For not break SPF, it’s important other paths are in place.
So B is for sure good, but I’m not sure for A
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