H3C Technologies H3C MSR 5600 - Manual (Page 105)

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2. Configure Router C:
# Enable the NTP service.
system-view
[RouterC] ntp-service enable
# Specify the local clock as the reference source, with the stratum level 2.
[RouterC] ntp-service refclock-master 2
# Configure Router C to operate in IPv6 multicast server mode and send multicast messages
through Ethernet 1/1.
[RouterC] interface ethernet 1/1
[RouterC-Ethernet1/1] ntp-service ipv6 multicast-server ff24::1
3. Configure Router D:
# Enable the NTP service.
system-view
[RouterD] ntp-service enable
# Configure Router D to operate in IPv6 multicast client mode and receive multicast messages on
Ethernet 1/1.
[RouterD] interface ethernet 1/1
[RouterD-Ethernet1/1] ntp-service ipv6 multicast-client ff24::1
4. Verify the configuration:
# Because Router D and Router C are on the same subnet, Router D can receive the IPv6 multicast
messages from Router C without being enabled with the IPv6 multicast functions and can
synchronize to Router C. Display the NTP status of Router D after clock synchronization.
[RouterD-Ethernet1/1] display ntp-service status
Clock status: synchronized
Clock stratum: 3
System peer: 3000::2
Local mode: bclient
Reference clock ID: 165.84.121.65
Leap indicator: 00
Clock jitter: 0.000977 s
Stability: 0.000 pps
Clock precision: 2^-10
Root delay: 0.00000 ms
Root dispersion: 8.00578 ms
Reference time: d0c60680.9754fb17 Wed, Dec 29 2010 19:12:00.591
The output shows that Router D has been synchronized to Router C, the clock stratum level of Router
D is 3, and the clock stratum level of Router C is 2.
# Display NTP association information for Router D.
[RouterD-Ethernet1/1] display ntp-service ipv6 sessions
Notes: 1 source(master), 2 source(peer), 3 selected, 4 candidate, 5 configured.
Source: [1234]3000::2
Reference: 127.127.1.0 Clock stratum: 2
Reachabilities: 111 Poll interval: 64
Last receive time: 23 Offset: -0.0
Roundtrip delay: 0.0 Dispersion: 0.0