NTP modes differ based on how NTP allows communication between systems. NTP communication consists of time requests and control queries. Time requests provide the standard client/server relationship in which a client requests time synchronization from an NTP server. Control queries provide ways for remote systems to get configuration information and reconfigure NTP servers.

OcNOS now offers support for NTP over default and management VRFs via in-band management interface & OOB management interface, respectively.

The feature can either be running on the default or management VRF. By default, it runs on the management VRF.