The ntp-service multicast-server command specifies an interface on the local device to send NTP multicast packets. The local device is run in the multicast server mode.
The undo ntp-service multicast-server command cancels the NTP multicast server mode.
By default, the multicast service is not configured.
ntp-service multicast-server ipv6 [ ipv6-address ] [ [ authentication-keyid key-id | autokey ] | ttl ttl-number | port port-number ] *
ntp-service multicast-server [ ip-address ] [ [ authentication-keyid key-id | autokey ] | ttl ttl-number | version number | port port-number ] *
undo ntp-service multicast-server [ ip-address ] [ [ authentication-keyid key-id | autokey ] | ttl ttl-number | version number | port port-number ] *
undo ntp-service multicast-server ipv6 [ ipv6-address ] [ [ authentication-keyid key-id | autokey ] | ttl ttl-number | port port-number ] *
| Parameter | Description | Value |
|---|---|---|
| ip-address | Specifies the multicast IPv4 address, which is a Class D address. | By default, it is 224.0.1.1. |
| ipv6 ipv6-address | Specifies the multicast IPv6 address. | By default, it is FF0E::0101. |
| authentication-keyid key-id | Specifies the authentication key ID number used while sending messages to the multicast clients. | For NTPv1, NTPv2, and NTPv3, the value is an integer ranging from 1 to 4294967295. For NTPv4, the value is an integer ranging from 1 to 65535. |
| autokey | Specifies the autokey is enabled. | - |
| ttl ttl-number | Specifies the life span of the multicast packet. | The value is in the range of 1 to 255. |
| version number | Specifies the NTP version number. | The value is in the range of 1 to 4 By default, it is 3. |
| port port-number | Specifies the port number to transmit NTP multicast message. | The value is in the range of 1025 to 65535. |
Ethernet interface view, Ethernet sub-interface view, Eth-Trunk interface view, Eth-Trunk sub-interface view, Tunnel interface view, Dialer interface view, VLANIF interface view, Loopback interface view
Specify an interface on the local device to send NTP multicast messages. The local device runs in multicast-server mode as a multicast-server, periodically sending multicast messages to the multicast client. For Autokey, internally the value ranges between 65537-4294967295.
# Configure GigabitEthernet0/0/0 transmit NTP multicast message with port 5000.
<sysname> system-view [sysname] interface GigabitEthernet 0/0/0 [sysname-GigabitEthernet0/0/0] ntp-service multicast-server port 5000
# Configure GE0/0/0 to send NTP multicast messages. The multicast address is 224.0.1.1, the authentication key number is 4 and the NTP version number is 3.
<sysname> system-view [sysname] interface GigabitEthernet 0/0/0 [sysname-GigabitEthernet0/0/0] ntp-service multicast-server 224.0.1.1 authentication-keyid 4 version 3