H3C Technologies H3C MSR 5600 - Manual (Page 97)

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Clock status: synchronized
Clock stratum: 3
System peer: 3.0.1.33
Local mode: sym_passive
Reference clock ID: 3.0.1.33
Leap indicator: 00
Clock jitter: 0.000916 s
Stability: 0.000 pps
Clock precision: 2^-17
Root delay: 0.00609 ms
Root dispersion: 1.95859 ms
Reference time: 83aec681.deb6d3e5 Sun, Jan 4 1970 5:56:17.869
# Display IPv4 NTP association information for Device B.
[DeviceB] display ntp-service sessions
source reference stra reach poll now offset delay disper
********************************************************************************
[25]3.0.1.31 127.127.1.0 3 28 64 - 0.0000 0.0000 4000.0
[1234]3.0.1.33 127.127.1.0 2 62 64 34 0.4251 6.0882 1392.1
Notes: 1 source(master), 2 source(peer), 3 selected, 4 candidate, 5 configured.
Total sessions: 2
The output shows that an association has been set up between Device B and Device A, and Device
B and Device C
IPv6 NTP symmetric active/passive mode
configuration example
Network requirements
• As shown in Figure 32 , 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 IPv6 NTP server of Device
B.
• Configure Device C to operate in symmetric-active mode and specify Device B as the IPv6 passive
peer of Device C.