57DefaultThe device does not operate in any NTP association mode.ViewVLAN interface viewPredefined user rolesnetwork-adminParametersip-address: Multicast IP address, in the range of 224.0.1.0 to 224.0.1.255, and defaults to 224.0.1.1. Amulticast server and client must be configured with the same multicast IP address.authentication-keyid keyid: Specifies the key ID to be used for sending multicast messages to multicastclients, where keyid is in the range of 1 to 4294967295. If this option is not specified, the local devicecannot synchronize multicast clients enabled with NTP authentication.ttl ttl-number: Specifies the TTL of NTP multicast messages, where ttl-number is in the range of 1 to 255and defaults to 16.version number: Specifies the NTP version, where number is in the range of 1 to 4 and defaults to 4.Usage guidelinesAfter you configure this command, the device periodically sends NTP messages to the specified multicastaddress.Examples# Configure the device to operate in multicast server mode and send NTP multicast messages onVLAN-interface 1 to the multicast address 224.0.1.1, using key 4 for encryption, and set the NTP versionto 4. system-view[Sysname] interface vlan-interface 1[Sysname-Vlan-interface1] ntp-service multicast-server 224.0.1.1 version 4authentication-keyid 4Related commandsntp-service multicast-clientntp-service refclock-masterUse the ntp-service refclock-master command to configure the local clock as a reference source for otherdevices.Use the undo ntp-service refclock-master command to remove the configuration.Syntaxntp-service refclock-master [ ip-address ] [ stratum ]undo ntp-service refclock-master [ ip-address ]DefaultThe device does not use its local clock as a reference clock.ViewsSystem view
