17Configuring a broadcast clientTo do… Use the command… RemarksEnter system view system-view —Enter VLAN interface view interface interface-typeinterface-numberRequiredEnter the VLAN interface used toreceive NTP broadcast messages.Configure the device to work inNTP broadcast client mode ntp-service broadcast-client RequiredConfiguring the broadcast serverTo do… Use the command… RemarksEnter system view system-view —Enter VLAN interface view interface interface-typeinterface-numberEnter VLAN interface used to sendNTP broadcast messages.Configure the device to work inNTP broadcast server modentp-service broadcast-server[ authentication-keyid keyid |version number ] *RequiredNOTE:A broadcast server can synchronize broadcast clients only when its clock has been synchronized.Configuring NTP multicast modeThe multicast server periodically sends NTP multicast messages to multicast clients, which send repliesafter they receive the messages and synchronize their local clocks.For devices working in multicast mode, configure both the server and clients. The NTP multicast modemust be configured in the specific interface view.Configuring a multicast clientTo do… Use the command… RemarksEnter system view system-view —Enter VLAN interface view interface interface-typeinterface-numberEnter the VLAN interface used toreceive NTP multicast messages.Configure the device to work inNTP multicast client modentp-service multicast-client[ ip-address ] RequiredConfiguring the multicast serverTo do… Use the command… RemarksEnter system view system-view —Enter VLAN interface view interface interface-typeinterface-numberEnter the VLAN interface used tosend NTP multicast message.
