22
Displaying and maintaining NTP
To do…
Use the command…
Remarks
Display information about NTP
service status
display ntp-service status
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Available in any
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Display information about NTP
sessions
display ntp-service sessions
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verbose
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Available in any
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Display the brief information about
the NTP servers from the local
device back to the primary
reference source
display ntp-service trace
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NTP configuration examples
Configuring NTP client/server mode
Network requirements
Perform the following configurations to synchronize the time between Device B and Device A:
•
As shown in
, the local clock of Device A is to be used as a reference source, with the
stratum level of 2.
•
Device B works in client/server mode and Device A is to be used as the NTP server of Device B.
Figure 11
Network diagram
Configuration procedure
1.
Set the IP address for each interface as shown in
. (Details not shown)
2.
Configure Device B:
# View the NTP status of Device B before clock synchronization.
<DeviceB> display ntp-service status
Clock status: unsynchronized
Clock stratum: 16
Reference clock ID: none
Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
Clock offset: 0.0000 ms
Root delay: 0.00 ms
Root dispersion: 0.00 ms
Peer dispersion: 0.00 ms
Reference time: 00:00:00.000 UTC Jan 1 1900 (00000000.00000000)