Scheduled maintenance will take place between 6:00 PM ET and 7:00 PM ET on March 10th, 2026. During that time, this site may be temporarily unavailable for a period of approximately two minutes.
A device role is a group of devices with the same rules. For example, the list of white-listed software for a server is likely different from that for a workstation. This would cause servers and devices to have separate device roles.
Sources:
NISTIR 8011 Vol. 1