RouterA will ignore identical link-state advertisements (LSAs) that are received from a neighbor router for two seconds. Identical Open Shortest Path First (OSPF) LSAs are LSAs with the same LSA ID number, LSA type, and advertising router ID. To configure the interval at which a router will ignore identical LSAs, you should issue the timers lsa arrival milliseconds command? by default, this interval is set to a value of 1000 milliseconds, or one second.
The timers throttle lsa all command configures the rate at which LSAs are generated by a router, not received from a neighbor router. The syntax of the timers throttle lsa all command is timers throttle lsa all start interval hold interval max interval.
The start interval timer is a value expressed in milliseconds that indicates how long the router will wait before generating an LSA. An LSA is generated immediately upon a local topology change, and the second LSA is generated sometime after the start interval timer expires. In this scenario, the start interval timer is set to a value of 500 milliseconds, or one-half second. By default, the start interval timer is set to a value of 0.
The hold interval timer is a value expressed in milliseconds that indicates how long the router will wait before generating an LSA. In this scenario, the hold interval timer is set to a value of 10000 milliseconds, or 10 seconds. By default, the hold interval timer is set to a value of 5000 milliseconds, or five seconds.
The max interval timer is a value expressed in milliseconds that indicates how long the router will wait before generating an identical LSA, not receiving an identical LSA. In this scenario, the max interval timer is set to a value of 40000 milliseconds, or 40 seconds. By default, the max interval timer is set to a value of 5000 milliseconds, or five seconds.