3com WX3000 Manuel D’Utilisation

 

1-19 

z 

As shown in 

, 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-interface2. 

z 

Device A and Device D are two WX3000 series devices. Configure Device A and Device D to work 

in the NTP multicast client mode and listen to multicast messages through their own 

Vlan-interface2. 

Figure 1-9 Network diagram for NTP multicast mode configuration 

Vlan -int2
1.0.1.31/24

Vlan -int2

3.0.1.31/24

Vlan -int2

3.0.1.32/24

Device A

Device B

Device C

Device D

 

 

1)  Configure Device C. 

# Enter system view. 

<DeviceC> system-view 

# Set Device C as a multicast server to send multicast messages through Vlan-interface2. 

[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 

# Set Device A as a multicast client to listen to multicast messages through Vlan-interface2. 

[DeviceA] interface Vlan-interface 2 

[DeviceA-Vlan-interface2] ntp-service multicast-client 

After the above configurations, Device A and Device D respectively listen to multicast messages 

through their own Vlan-interface2, and Device C advertises multicast messages through 

Vlan-interface2. Because Device A and Device C do not share the same network segment, Device A 

cannot receive multicast messages from Device C, while Device D is synchronized to Device C after 

receiving multicast messages from Device C. 

View the NTP status of Device D after the clock synchronization. 

[DeviceD] display ntp-service status