From CCO link
A. OSPF must send acknowledgment of each newly received link-state advertisement (LSA). It does this by sending LSA packets. LSAs are retransmitted until they are acknowledged. The link-state retransmit interval defines the time between retransmissions. You can use the command ip ospf retransmit-interval to set the retransmit interval. The default value is 5 seconds.
sh ip ospf int s2/2
Serial2/2 is up, line protocol is up
Internet Address 172.16.111.2/24, Area 13
Process ID 1, Router ID 10.1.1.100, Network Type POINT_TO_POINT, Cost: 64
Transmit Delay is 1 sec, State POINT_TO_POINT,
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
(config-if)#ip ospf retransmit-interval 60
sh ip ospf int s2/2 | in Retransmit
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 60
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