H3C Technologies H3C MSR 5600 - Manual (Page 96)

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• Configure Device C to operate in symmetric-active mode and specify Device B as the passive peer
of Device C.
Figure 31 Network diagram
Configuration procedure
1. Set the IP address for each interface as shown in Figure 31 . (Details not shown.)
2. Configure Device A:
# Enable the NTP service.
system-view
[DeviceA] ntp-service enable
# Specify the local clock as the reference source, with the stratum level 3.
[DeviceA] ntp-service refclock-master 3
3. Configure Device B:
# Enable the NTP service.
[DeviceB] ntp-service enable
# Specify Device A as the NTP server of Device B.
[DeviceB] ntp-service unicast-server 3.0.1.31
4. Configure Device C:
# Enable the NTP service.
system-view
[DeviceC] ntp-service enable
# Specify the local clock as the reference source, with the stratum level 2.
[DeviceC] ntp-service refclock-master 2
# Configure Device B as a symmetric passive peer.
[DeviceC] ntp-service unicast-peer 3.0.1.32
5. Verify the configuration:
# After the configuration, Device B has two time servers Device A and Device C. Device C has a
lower stratum level than Device A, so Device B selects Device C as a reference clock to synchronize
to Device C. After synchronization, view the status of Device B. The output shows that Device B has
been synchronized to Device C.
[DeviceB] display ntp-service status