Motorola WS5100 用户手册

5-23

 

2. Select the 

 tab. 

3. Refer to the following SNTP Association data for each SNTP association displayed: 

4. Select an existing NTP association and click the 

button to display additional information useful 

in discerning whether the association should be maintained.

Displays the numeric IP address of the SNTP resource (Server) providing SNTP updates to the 
switch.

Displays the address of the time source the switch is synchronized to. 

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.

Displays the date and time when the SNTP association was initiated. Has the association 
been trouble free over that time?

Displays the maximum interval between successive messages, in seconds to the nearest 
power of two. 

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. 

Displays the round-trip delay (in seconds) for SNTP broadcasts between the SNTP server and 
the switch.

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.

Displays how scattered the time offsets are (in seconds) from a SNTP time server