25-10Configuring a multicast clientTo do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-numberEnter the interface used toreceive NTP multicastmessages.Configure the device to work inthe NTP multicast client modentp-service multicast-client[ ip-address ] RequiredConfiguring the multicast serverTo do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-numberEnter the interface used tosend NTP multicast message.Configure the device towork in the NTPmulticast server modentp-service multicast-server[ ip-address ] [ authentication-keyidkeyid | ttl ttl-number | versionnumber ] *Requiredz A multicast server can synchronize broadcast clients only after its clock has been synchronized.z You can configure up to 1024 multicast clients, among which 128 can take effect at the same time.Configuring Optional Parameters of NTPSpecifying the Source Interface for NTP MessagesIf you specify the source interface for NTP messages, the device sets the source IP address of theNTP messages as the primary IP address of the specified interface when sending the NTP messages.When the device responds to an NTP request received, the source IP address of the NTP response isalways the IP address of the interface that received the NTP request.Following these steps to specify the source interface for NTP messages:To do… Use the command… RemarksEnter system view system-view —Specify the sourceinterface for NTPmessagesntp-servicesource-interfaceinterface-typeinterface-numberRequiredBy default, no source interface is specifiedfor NTP messages, and the system usesthe IP address of the interface determinedby the matching route as the source IPaddress of NTP messages.
