OSPF throttle works by delaying the sending of OSPF updates for a certain period of time. The default throttle value is 500 milliseconds, but this can be adjusted by the network administrator. When an OSPF update is received, the router will first check if the update is a duplicate of an update that has already been received. If it is a duplicate, the update will be discarded. If it is not a duplicate, the update will be added to the update queue. The router will then send the updates in the update queue at a rate that is determined by the throttle value.
OSPF throttle can help to improve the convergence of the OSPF routing protocol by preventing the network from being flooded with OSPF updates. This can also help to reduce the amount of traffic on the network, which can improve overall network performance.
