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2312 CHAPTER 152: NTP CONFIGURATION COMMANDS
version number: Specifies the NTP version, where number is in the range of 1 to 3
and defaults to 3.
Description Use the
ntp-service unicast-peer command to designate a symmetric-passive
peer for the device.
Use the
undo ntp-service unicast-peer command to remove the
symmetric-passive peer designated for the device.
No symmetric-passive peer is designated for the device by default.
n
■ If you specify a VPN instance name, this VPN must exist, and at least one local
interface and the NTP symmetric-passive peer coexist in this VPN.
■ If multiple VPNs have been configured on the PE and you want to synchronize
the PE to a PE or CE in one of these VPNs, you need to provide vpn-instance
vpn-instance-name in your command.
■ If you include vpn-instance vpn-instance-name in the undo ntp
unicast-peer command, the command will remove the symmetric-passive
peer with the IP address of ip-address in the specified VPN; if you do not
include vpn-instance vpn-instance-name in this command, the command will
remove the symmetric-passive peer with the IP address of ip-address in the
public network.
Example # Designate the device with the IP address of 10.1.1.1 as the symmetric-passive
peer of the local device, and configure the local device to run NTP version 3, and
send NTP messages through Ethernet 1/0.
<Sysname> system-view
[Sysname] ntp-service unicast-peer 10.1.1.1 version 3 source-interfa
ce ethernet 1/0
ntp-service unicast-server
Syntax ntp-service unicast-server [ vpn-instance vpn-instance-name ] { ip-address |
server-name } [ authentication-keyid keyid | priority | source-interface
interface-type interface-number | version number ] *
undo ntp-service unicast-server [ vpn-instance vpn-instance-name ] { ip-address |
server-name }
View System view
Parameter vpn-instance vpn-instance-name: Specifies a VPN instance by its name, where
vpn-instance-name is a string of 1 to 31 characters.
ip-address: IP address of the NTP server. It must be a host address, rather than a
broadcast address, a multicast address or the IP address of the local clock.
server-name: Host name of the NTP server, a string of 1 to 20 characters.