Ntp Communication Failures; The Switch Cannot Be Synchronized By Using Ntp - Alaxala AX6700S series Troubleshooting Manual

3. Troubleshooting Functional Failures During Operation

3.18 NTP communication failures

3.18.1 The Switch cannot be synchronized by using NTP

If the system clock cannot be synchronized by NTP, isolate the cause of the problem according to
the failure analysis method described in the following table.
Table 3-75: NTP failure analysis method
No. Items to check and commands
1 Use the
show clock
sure the time zone is set.
2 Check the time difference between the
Switch and the NTP server.
3 Check communication with the NTP
server via IPv4.
144
command to make If the time zone is set in the information displayed by the command, go
to No. 2.
If the time zone is not set in the information displayed by the command,
set the time zone.
If the time difference between the Switch and the NTP server is less than
1000 seconds, go to No. 3.
If the time difference between the Switch and the NTP server is 1000
seconds or more, use the
of the Switch with the NTP server.
Use the
IPv4 between the NTP server and the Switch.
Make sure that there is no setting for discarding any packets at the UDP
port number 123 in the settings of the NTP server or the Switch.
Action
set clock
command to check whether communication is possible via
ping
command to match the system clock