An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in the topological database. What action is taken by the router?
A. The link state information is not populated in the database but is forwarded to all neighbors
B. The link state information already in the database is overwritten and the age is reset
C. The link state information is not populated in the database and an acknowledgement is sent
D. The link state information is regarded as old and nothing is done.
An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in t
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An OSPF router receives an update in which the sequence number, age, and checksum are the same as the entry already in t
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