1-10ntp-service multicast-clientSyntaxntp-service multicast-client [ ip-address ]undo ntp-service multicast-client [ ip-address ]ViewVLAN interface viewParametersip-address: Multicast IP address, in the range of 224.0.1.0 to 224.0.1.255. The default IP address is224.0.1.1.DescriptionUse the ntp-service multicast-client command to configure an Ethernet switch to operate in the NTPmulticast client mode and receive NTP multicast packets through the current interface.Use the undo ntp-service multicast-client command to remove the configuration.By default, no NTP operate mode is configured.Examples# Configure the switch to receive NTP multicast packets through VLAN-interface 1, with the multicast IPaddress being 224.0.1.2. system-viewSystem View: return to User View with Ctrl+Z.[Sysname] interface Vlan-interface 1[Sysname-Vlan-interface1] ntp-service multicast-client 224.0.1.2ntp-service multicast-serverSyntaxntp-service multicast-server [ ip-address ] [ authentication-keyid key-id | ttl ttl-number | versionnumber ]*undo ntp-service multicast-server [ ip-address ]ViewVLAN interface viewParametersip-address: Multicast IP address, in the range of 224.0.1.0 to 224.0.1.255. The default IP address is224.0.1.1.authentication-keyid key-id: Specifies the key ID used for sending packets to multicast clients. Thekey-id argument ranges from 1 to 4294967295.ttl ttl-number: Defines the lifetime of multicast packets. The ttl-number argument ranges from 1 to 255and defaults to 16.version number: Specifies the NTP version number which ranges from 1 to 3 and defaults to 3.