3Com 4200G, 4210, 5500, 5500G NTP Broadcast Mode

NTP Broadcast Mode Configuration 273
# Set Device C as the symmetric-peer.
<DeviceB> system-view
[DeviceB] ntp-service unicast-peer 3.0.1.33
# View NTP status and NTP session information of Device C after clock
synchronization.
[DeviceC] display ntp-service status
[DeviceC] display ntp-service sessions
Complete Configuration ■Configuration on Device C.
#
ntp-service unicast-server 3.0.1.31
■Configuration on Device B.
#
ntp-service unicast-peer 3.0.1.33
Precautions The local clock of a Switch 5500, 5500G, or 4210 cannot be set as a reference
clock. It can synchronize other devices as a reference clock only when its clock is
synchronized.
NTP Broadcast Mode
Configuration
Network Diagram Figure 84 Network diagram for NTP broadcast mode configuration
Networking and
Configuration
Requirements
■The local clock of Device C is to be used as a reference source, with the stratum
level of 2. Set Device C to work in the broadcast server mode and send
broadcasts through its VLAN-interface 2.
■Device A and Device D are two Switch 5500s. Set Device A and Device D to
work in the broadcast client mode and listen to broadcasts through their
VLAN-interface 2 respectively.
Vlan-int2
3.0.1.11/24
Vlan-int2
3.0.1.12/24
Vlan-int2
3.0.1.13/24
Vlan-int2
3.0.1.14/24
Vlan-int2
3.0.1.12/24
Device A Device B
Device C
Device D