3-10 T-Series Traffic Director Installation, Configuration and Administration Guide
Chapter 3 Basic T1000/Unison Load-Balancing Configuration
To configure NTP from the CLI:
> add ntp server 10.20.30.40 -minpoll 6 -maxpoll 10
Done
> set ntp server 10.20.30.40 -preferredNtpServer YES
Done
> add ntp server 11.21.31.41 -minpoll 6 -maxpoll 10
Done
> enable ntp sync
Done