H3C Technologies H3C SR8800 - Manual (Page 83)

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Figure 26 Network diagram
Configuration procedure
1. Set the IP address for each interface as shown in Figure 26 . (Details not shown)
2. Configure Device A:
# Specify the local clock as the reference source, with the stratum level of 2.
system-view
[DeviceA] ntp-service refclock-master 2
3. Configure Device B:
# Specify Device A as the NTP server of Device B.
system-view
[DeviceB] ntp-service unicast-server 3.0.1.31
4. Configure Device C (after Device B is synchronized to Device A):
# Specify the local clock as the reference source, with the stratum level of 1.
system-view
[DeviceC] ntp-service refclock-master 1
# Configure Device B as a symmetric peer after local synchronization.
[DeviceC] ntp-service unicast-peer 3.0.1.32
In the step above, Device B and Device C are configured as symmetric peers, with Device C in the
symmetric-active mode and Device B in the symmetric-passive mode. Because the stratus level of
Device C is 1 while that of Device B is 3, Device B is synchronized to Device C.
# View the NTP status of Device B after clock synchronization.
[DeviceB] display ntp-service status
Clock status: synchronized
Clock stratum: 2
Reference clock ID: 3.0.1.33
Nominal frequency: 64.0000 Hz
Actual frequency: 64.0000 Hz
Clock precision: 2^7
Clock offset: -21.1982 ms
Root delay: 15.00 ms
Root dispersion: 775.15 ms
Peer dispersion: 34.29 ms
Reference time: 15:22:47.083 UTC Sep 19 2005 (C6D95647.153F7CED)