Operation Manual -- NTP 
Quidway S3900 Series Ethernet Switches-Release 1510  Chapter 1  NTP Configuration
 
Huawei Technologies Proprietary 
1-20 
  Note: 
This example assumes that Quidway3 is a switch that supports the local clock being the 
master clock. 
 
II. Network diagram 
Quidway 3
S3900-2 Quidway 4
3.0.1.31/24
3.0.1.32/24
1.0.1.31/24
Vlan-interface 2
Vlan-interface 2
Vlan-interface 2
Quidway 3
Quidway 4
3.0.1.31/24
3.0.1.32/24
1.0.1.31/24
Vlan-interface 2
Vlan-interface 2
Vlan-interface 2
S3900-1
Quidway 3
S3900-2 Quidway 4
3.0.1.31/24
3.0.1.32/24
1.0.1.31/24
Vlan-interface 2
Vlan-interface 2
Vlan-interface 2
Quidway 3
Quidway 4
3.0.1.31/24
3.0.1.32/24
1.0.1.31/24
Vlan-interface 2
Vlan-interface 2
Vlan-interface 2
S3900-1
 
Figure 1-9 Network diagram for NTP multicast mode configuration 
III. Configuration procedures 
1) Configure Quidway3. 
# Enter system view. 
<Quidway3> system-view 
[Quidway3] 
# Enter VLAN-interface 2 view. 
[Quidway3] interface Vlan-interface 2  
# Configure Quidway3 to be a multicast server. 
[Quidway3-Vlan-interface2] ntp-service multicast-server 
2) Configure S3900-1. 
# Enter system view. 
<S3900-1> system-view 
[S3900-1] 
# Enter VLAN-interface 2 view. 
[[S3900-1] interface vlan-interface 2  
# Configure Quidway4 to be a multicast client. 
[S3900-1-Vlan-interface2] ntp-service multicast-client 
3) Configure S3900-2. 
# Enter system view. 
<S3900-2> system-view 
[S3900-2]