Motorola WiNG 5 System Reference Manual page 743

Root Delay The total round-trip delay in seconds. This variable can take on both positive
and negative values, depending on relative time and frequency offsets. The
values that normally appear in this field range from negative values (a few
milliseconds) to positive values (several hundred milliseconds).
Root Display The difference between the time on the root NTP server and its reference
clock. The reference clock is the clock used by the NTP server to set its own
clock.
Status Stratum Displays how many hops the access point is from its current NTP time source.
Select the Refresh button to update the screen's statistics counters to their
Refresh
latest values.
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