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15.17.11. Configuring the iburst Option

To improve the time taken for initial synchronization, add the following option to the end of a server command:
iburst
At every poll interval, send a burst of eight packets instead of one. When the server is not responding, packets are sent 16s apart. When the server responds, packets are sent every 2s. For use with the server command to reduce the time taken for initial synchronization. This is now a default option in the configuration file.