Bluecat applies DNS changes apply on the following schedule:
Daily DNS updates (all 7 days): 8:00AM, 10:00AM, 12:00PM, 2:00PM, 8:00 PM, 9:00 PM
Sunday DNS updates: 6:00 AM, 8:00 AM, 10:00 AM
Even after the DNS servers have been updated, machines still cache DNS information. In order to apply any DNS changes immediately, please flush the DNS cache.
DHCP changes entered via https://ipam.net.tufts.edu/admin are applied at 20 minutes and 50 minutes of each hour (1:20, 1:50, 2:20, 2:50, etc). New registrations via https://portal.net.tufts.edu or https://hostreg.net.tufts.edu are processed immediately.
changes made in AD bind are instant, but it is ESS standard policy to make bind changes on the DNS update schedule through proteus.