32
The output shows that Device B has been synchronized to Device A, the clock stratum level of
Device B is 3, and that of Device A is 2.
# Display IPv6 NTP association information for Device B.
[DeviceB] display ntp-service ipv6 sessions
Notes: 1 source(master), 2 source(peer), 3 selected, 4 candidate, 5 configured.
Source: [12345]3000::34
Reference: 127.127.1.0 Clock stratum: 2
Reachabilities: 15 Poll interval: 64
Last receive time: 19 Offset: 0.0
Roundtrip delay: 0.0 Dispersion: 0.0
Total sessions : 1
The output shows that an association has been set up between Device B and Device A.
NTP symmetric active/passive mode configuration
example
Network requirements
As shown in Figure 11, Device C has a clock more accurate than Device A.
• Set the local clock of Device A as a reference source, with the stratum level 3.
• Set the local clock Device C as a reference source, with the stratum level 2.
• Configure Device B to operate in client mode and specify Device A as the NTP server of Device B.
• Configure Device C to operate in symmetric-active mode and specify Device B as the passive peer
of Device C.
Figure 11 Network diagram
Configuration procedure
1. Set the IP address for each interface as shown in Figure 11. (Details not shown.)
2. Configure Device A:
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