Troubleshooting guide

3. Troubleshooting Functional Failures During Operation
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3.11 NTP communication failures
3.11.1 Time information cannot be acquired from the NTP server
If time information cannot be acquired from the NTP server, isolate the cause of the
problem according to the failure analysis method described in the following table.
Table 3-34 NTP failure analysis method
No. Items to check and commands Action
1 Use the show clock operation
command to make sure that the time
zone is set.
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.
2 Use the show ntp-client
operation command to check the
information acquired from the NTP
server.
If Timeout or Error is displayed in the Status field for the latest
information in NTP Execute History, go to No. 3.
3 Check communication with the NTP
server via IPv4.
Use the ping operation command to check whether
communication is possible via IPv4 between the NTP server and
the Switch.