Installation guide

Switch Services
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4. Select an existing NTP association and click the Details button to display additional information
useful in discerning whether the association should be maintained.
Offset (sec) Displays the calculated offset between the switch and SNTP
server. The switch adjusts its clock to match the server's time
value. The offset gravitates toward zero over time, but never
completely reduces its offset to zero.
Dispersion (sec) Displays how scattered the time offsets are (in seconds) from a
SNTP time server