Select No limit to avoid limiting the bandwidth used for discovery.

Select An average of to limit the bandwidth used for discovery, then select the average (1-9999 Mbps) to set as the limit.

Select Only on policy update to perform full discovery only when a discovery policy changes.

Select On policy update or fingerprinting classifier update to perform full discovery when a discovery policy or a fingerprinting version changes.

Select Always to perform full discovery on the scheduled time no matter what has changed. (We don't recommend choosing "always," because this slows the discovery process and taxes the system and file servers.)