IEEE 1588 External Switch Requirements

To take advantage of the network synchronization features of the cRIO-905x controllers, ensure that your network infrastructure meets certain requirements depending on which IEEE 1588 profile is implemented for your application:

• IEEE 802.1AS-2011 support—Automatically enables timebase synchronization and enables the use of time-based triggers and timestamping between devices across the network. Synchronization performance will meet NI product specifications.
• IEEE 1588-2008 support—Enables timebase synchronization and enables the use of time-based triggers and timestamping between devices across the network. Synchronization performance will vary and may not meet NI product specifications. As a default configuration for IEEE 1588-2008, NI supports the IEEE 1588 Delay Request-Response profile, using the UDP over IP transport (layer 3-4).