No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade
Knowledge Base

Devices can't align with NTP server

Publication Date:  2020-01-31  |   Views:  54  |   Downloads:  0  |   Author:  o84119024  |   Document ID:  EKB1100045215

Contents

Issue Description

NTP server—CE ---S device


CE6880 --- Devices can't align with NTP server

Alarm Information

When display ntp service all Synchronization distance greater than distance threshold we found the reason 

Handling Process

1- Ping is ok from NTP server to NTP client


2- When debugging ntp-service all it show the reason "Synchronization distance greater than distance threshold" 


30c7b9c3c7134852a1585d552814c0b4



Root Cause

The synchronization distance is greater than the distance threshold. As a result, the synchronization fail


Solution

Run the ntp-service max-distance 16 command to configure the maximum NTP synchronization distance threshold.


Because the maximum NTP synchronization distance by a switch ranges from 1 to 16 secondes, if the dispersion to the reference clock is greater than 16 secondes, the synchronization will fail

If the maximum NTP synchronization distance is smaller than the dispersion to the primary reference clock (specified by root disper) => display ntp session verbose to output the root disper value

So according to the disper value we have to assign the synchronization distance