HPE FlexNetwork 5510 HI Series Network Management And Monitoring Configuration Manual page 45

Figure 15 Network diagram
Switch A
NTP multicast client
Configuration procedure
1. Set the IP address for each interface, and make sure the switches can reach each other, as
shown in
2. Configure Switch C:
# Enable the NTP service.
<SwitchC> system-view
[SwitchC] ntp-service enable
# Specify the local clock as the reference source, with the stratum level 2.
[SwitchC] ntp-service refclock-master 2
# Configure Switch C to operate in IPv6 multicast server mode and send multicast messages
through VLAN-interface 2.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] ntp-service ipv6 multicast-server ff24::1
3. Configure Switch D:
# Enable the NTP service.
<SwitchD> system-view
[SwitchD] ntp-service enable
# Configure Switch D to operate in IPv6 multicast client mode and receive multicast messages
on VLAN-interface 2.
[SwitchD] interface vlan-interface 2
[SwitchD-Vlan-interface2] ntp-service ipv6 multicast-client ff24::1
4. Verify the configuration:
Switch D and Switch C are on the same subnet, so Switch D can do the following:
Receive the IPv6 multicast messages from Switch C without being enabled with the IPv6

multicast functions.
Synchronize to Switch C.

# Verify that Switch D has synchronized to Switch C, and the clock stratum level is 3 on Switch
D and 2 on Switch C.
[SwitchD-Vlan-interface2] display ntp-service status
Clock status: synchronized
Clock stratum: 3
System peer: 3000::2
Vlan-int3 Vlan-int3
2000::1/64 2000::2/64
Switch B
Figure 15. (Details not shown.)
Vlan-int2
3000::2/64
NTP multicast server
Vlan-int2
3000::1/64
Vlan-int2
3000::3/64
NTP multicast client
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Switch C
Switch D