101
Figure 39
Network diagram
Configuration procedure
1.
Assign an IP address to each interface, and make sure Device A and Device B can reach each
other, as shown in
. (Details not shown.)
2.
Configure Device B:
# Enable the NTP service.
<DeviceB> system-view
[DeviceB] ntp-service enable
3.
Configure Device A:
# Enable the NTP service.
<DeviceA> system-view
[DeviceA] ntp-service enable
# Specify the local clock as the reference source, with stratum level 2.
[DeviceA] ntp-service refclock-master 2
# Configure Device B as an IPv6 symmetric passive peer.
[DeviceA] ntp-service ipv6 unicast-peer 3000::36
4.
Verify the configuration:
# Verify that Device B has synchronized to Device A.
[DeviceB] display ntp-service status
Clock status: synchronized
Clock stratum: 3
System peer: 3000::35
Local mode: sym_passive
Reference clock ID: 251.73.79.32
Leap indicator: 11
Clock jitter: 0.000977 s
Stability: 0.000 pps
Clock precision: 2^-18
Root delay: 0.01855 ms
Root dispersion: 9.23483 ms
Reference time: d0c6047c.97199f9f Wed, Dec 29 2010 19:03:24.590
# Verify that an IPv6 NTP association has been established between Device B and Device A.
[DeviceB] display ntp-service ipv6 sessions
Notes: 1 source(master), 2 source(peer), 3 selected, 4 candidate, 5 configured.
Source: [1234]3000::35
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
Device B
Device A
3000::35/64
3000::36/64
Symmetric active peer
Symmetric passive peer