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ntp-service ipv6 multicast-server
Use ntp-service ipv6 multicast-serverto configure the device to operate in IPv6 NTP multicast
server mode and use the current interface to send IPv6 NTP multicast packets.
Use undo ntp-service ipv6 multicast-serverto remove the configuration.
Syntax
ntp-service ipv6 multicast-serveripv6-address[authentication-keyidkeyid| ttlttl-number] *
undo ntp-service ipv6multicast-server ipv6-address
Default
The device does not operate in anyNTP association mode.
Views
Interface view
Predefined user roles
network-admin
Parameters
ipv6-address: Specifies an IPv6 multicast address. An IPv6 multicast client and server must be
configured with the same multicast address.
authentication-keyid keyid: Specifies the key ID to be used for sending multicast messages to
multicast clients. Thevalue range for the keyidargument is 1 to 4294967295. If you do not specify this
option, the local device cannot synchronize clients enabled with NTP authentication.
ttlttl-number: Specifies the TTL of NTP multicast messages. The value range for
thettl-numberargument is 1 to 255, and the default is 16.
Usage guidelines
After you configure the command, the device periodically sends NTP messages to the specified IPv6
multicast address.
If you have configured the device to operate in IPv6 multicast server mode on an interface with the
command, do not add the interface to any aggregate group. To add the interface to an aggregate
group, remove the configuration of the command.
Examples
# Configure the device to operate in IPv6 multicast server mode and send IPv6 NTP multicast
messages on GigabitEthernet1/0/1 to the multicast address FF21::1, using key 4 for encryption.
<Sysname> system-view
[Sysname] interface gigabitethernet 1/0/1
[Sysname-GigabitEthernet1/0/1] ntp-service ipv6 multicast-server ff21::1
Related commands
ntp-service ipv6 multicast-client
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