Motorola Series Switch WS5100 - Manual (Page 193)

Switch Services 5-23
2. Select the NTP Associations tab.
3. Refer to the following SNTP Association data for each SNTP association displayed:
4. Select an existing NTP association and click the Details button to display additional information useful
in discerning whether the association should be maintained.
Address Displays the numeric IP address of the SNTP resource (Server) providing SNTP updates to the
switch.
Reference Clock Displays the address of the time source the switch is synchronized to.
Stratum Displays how many hops the switch is from a SNTP time source. The switch automatically
chooses the SNTP resource with the lowest stratum number. The SNTP supported switch is
careful to avoid synchronizing to a server that may not be accurate. Thus, the NTP enabled
switch never synchronizes to a machine not synchronized itself. The SNTP enabled switch
compares the time reported by several sources, and does not synchronize to a time source
whose time is significantly different than others, even if its stratum is lower.
When Displays the date and time when the SNTP association was initiated. Has the association
been trouble free over that time?
Peer Poll Displays the maximum interval between successive messages, in seconds to the nearest
power of two.
Reach Displays the status of the last eight SNTP messages. If an SNTP packet is lost, the lost
packet is tracked over the next eight SNTP messages.
Delay (sec) Displays the round-trip delay (in seconds) for SNTP broadcasts between the SNTP server and
the switch.
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