Study the exhibit carefully. Two directly connected routers are configured with OSPF. The output
presented in the exhibit can be seen on the console of one router. What most likely cause this
problem?

A.
The maximum transmission unit on either side of the link is not the same

B.
This debug is wrong, OSPF does not exchange DBD packets

C.
This is normal for OSPF running over an FDDI ring

D.
OSPF has received a packet that will not fit in its local buffer, so the packet has been
discarded.

Explanation:
The debug output shows that the interface on the other side has a large MTU than what is
currently being used