1-12Following these steps to specify the source interface for NTP messages:To do… Use the command… RemarksEnter system view system-view —Specify the source interface forNTP messagesntp-service source-interfaceinterface-type interface-numberRequiredBy default, no source interfaceis specified for NTP messages,and the system uses the IPaddress of the interfacedetermined by the matchingroute as the source IP addressof NTP messages.z If you have specified the source interface for NTP messages in the ntp-service unicast-server orntp-service unicast-peer command, the interface specified in the ntp-service unicast-server orntp-service unicast-peer command serves as the source interface of NTP messages.z If you have configured the ntp-service broadcast-server or ntp-service multicast-servercommand, the source interface of the broadcast or multicast NTP messages is the interfaceconfigured with the respective command.z If the specified source interface for NTP messages is down, the source IP address for an NTPmessage that is sent out is the primary IP address of the outgoing interface of the NTP message.Disabling an Interface from Receiving NTP MessagesWhen NTP is enabled, NTP messages can be received from all the interfaces by default, and you candisable an interface from receiving NTP messages through the following configuration.To do… Use the command… RemarksEnter system view system-view —Enter interface view interface interface-typeinterface-number —Disable the interface fromreceiving NTP messagesntp-service in-interfacedisableRequiredAn interface is enabled toreceive NTP messages bydefault.Configuring the Maximum Number of Dynamic Sessions AllowedTo do… Use the command… RemarksEnter system view system-view —Configure the maximumnumber of dynamic sessionsallowed to be establishedlocallyntp-servicemax-dynamic-sessionsnumberRequired100 by default