Ntp Multicast Mode Configuration Example - HPE FlexFabric 5700 Series Network Management And Monitoring Configuration Manual

NTP multicast mode configuration example

Network requirements
As shown in
network segments and synchronizes the time among multiple devices.
•
Configure Switch C's local clock as a reference source, with the stratum level 2.
•
Configure Switch C to operate in multicast server mode and send out multicast messages from
VLAN-interface 2.
•
Configure Switch A and Switch D to operate in multicast client mode and receive multicast
messages through VLAN-interface 3 and VLAN-interface 2, respectively.
Figure 13 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 multicast server mode and send multicast messages
through VLAN-interface 2.
[SwitchC] interface vlan-interface 2
[SwitchC-Vlan-interface2] ntp-service multicast-server
3. Configure Switch D:
# Enable the NTP service.
<SwitchD> system-view
[SwitchD] ntp-service enable
# Configure Switch D to operate in multicast client mode and receive multicast messages on
VLAN-interface 2.
[SwitchD] interface vlan-interface 2
[SwitchD-Vlan-interface2] ntp-service multicast-client
Figure 13, Switch C functions as the NTP server for multiple devices on different
Vlan-int3 Vlan-int3
1.0.1.11/24 1.0.1.10/24
Switch B
Figure 13. (Details not shown.)
Vlan-int2
3.0.1.31/24
NTP multicast server
Vlan-int2
3.0.1.30/24
Vlan-int2
3.0.1.32/24
NTP multicast client
33
Switch C
Switch D