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Usage guidelines
When you specify an NTP server for the device, the device is synchronized to the NTP server, but the
NTP server is not synchronized to the device.
To synchronize the PE to a PE or CE in a VPN, provide
vpn-instance
vpn-instance-name
in your
command.
If you include the
vpn-instance
vpn-instance-name
option in the
undo ntp-service unicast-server
command, the command removes the NTP server with the IP address of
ip-address
in the specified
VPN. If you do not include the
vpn-instance
vpn-instance-name
option in the command, the
command removes the NTP server with the IP address of
ip-address
in the public network.
Examples
# Specify NTP server 10.1.1.1 for the device, and configure the device to run NTP version 4.
<Sysname> system-view
[Sysname] ntp-service unicast-server 10.1.1.1 version 4
Related commands
ntp-service authentication enable
ntp-service authentication-keyid
ntp-service reliable authentication-keyid