A static route is created using the command 'static-route 0.0.0.0/0 next-hop 3.3.3.1'. What command could be used to test the static route on an Nokia 7750 SR?
A router receives an OSPF database description packet from a neighbor that references an LSA, which is already in the router's LSDB. The sequence number in the DBD packet is lower than the sequence number of the LSA in the LSDB.