Configuring Ntp Multicast Mode - H3C S3100-52P Operation Manual

Operation Manual – NTP
H3C S3100-52P Ethernet Switch
note: 1 source(master),2 source(peer),3 selected,4 candidate,5 configured
Total associations :

1.8.4 Configuring NTP Multicast Mode

I. Network requirements
The local clock of Device C is set as the NTP master clock, with a clock stratum
level of 2. Configure Device C to work in the NTP multicast server mode and
advertise multicast NTP messages through VLAN-interface 2.
Device A and Device D are two S3100-52P Ethernet switches. Configure Device A
and Device D to work in the NTP multicast client mode and listen to multicast
messages through their own VLAN-interface 2.
II. Network diagram
Vlan-int2
1.0.1.31/24
Device A
Figure 1-9 Network diagram for NTP multicast mode configuration
III. Configuration procedure
1) Configure Device C.
# Enter system view.
<DeviceC> system-view
# Set Device C as a multicast server to send multicast messages through
VLAN-interface 2.
[DeviceC] interface Vlan-interface 2
[DeviceC-Vlan-interface2] ntp-service multicast-server
2) Configure Device A (perform the same configuration on Device D).
# Enter system view.
<DeviceA> system-view
1
Device B
1-23
Chapter 1 NTP Configuration
Vlan-int2
3.0.1.31/24
Device C
Vlan-int2
3.0.1.32/24
Device D