3Com Switch 4200G Configuration Guide

308 CHAPTER 35: NTP CONFIGURATION
After the above configuration, the S4200G 2 series switch can be synchronized to
S4200G 1. You can display the status of S4200G 2 after the synchronization.
[S4200G] display ntp-service status
clock status: synchronized
clock stratum: 3
reference clock ID: 1.0.1.11
nominal frequence: 250.0000 Hz
actual frequence: 249.9992 Hz
clock precision: 2^19
clock offset: 0.66 ms
root delay: 27.47 ms
root dispersion: 208.39 ms
peer dispersion: 9.63 ms
reference time: 17:03:32.022 UTC Thu Sep 6 2001 (BF422AE4.05AEA86C)
The output information indicates that S4200G 2 is synchronized to S4200G 1, with
the clock stratum being 3, one stratum higher than S4200G 1.