R21xx-HP FlexFabric 11900 Network Management and Monitoring Command Reference

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Examples
# Specify the device with the IP address of 10.1.1.1 as the symmetric-passive peer of the device, configure
the device to run NTP version 4, and specify the source interface of NTP messages as VLAN-interface 1.
<Sysname> system-view
[Sysname] ntp-service unicast-peer 10.1.1.1 version 4 source-interface vlan-interface 1
Related commands
• ntp-service authentication enable
• ntp-service authentication-keyid
• ntp-service reliable authentication-keyid
ntp-service unicast-server
Use ntp-service unicast-server to specify an NTP server for the device.
Use undo ntp-service unicast-server to remove an NTP server specified for the device.
Syntax
ntp-service unicast-server { ip-address | server-name } [ vpn-instance vpn-instance-name ]
[ authentication-keyid keyid | priority | source interface-type interface-number | version number ] *
undo ntp-service unicast-server { ip-address | server-name } [ vpn-instance vpn-instance-name ]
Default
No NTP server is specified for the device.
Views
System view
Predefined user roles
network-admin
Parameters
ip-address: Specifies an IP address of the NTP server. It must be a unicast address, rather than a
broadcast address, a multicast address or the IP address of the local clock.
server-name: Specifies a host name of the NTP server, a case-insensitive string of 1 to 253 characters.
vpn-instance vpn-instance-name: Specifies the MPLS L3VPN to which the NTP server belongs, where
vpn-instance-name is a case-sensitive string of 1 to 31 characters. If the NTP server is on the public
network, do not specify this option.
authentication-keyid keyid: Specifies the key ID to be used for sending NTP messages to the NTP server,
where keyid is in the range of 1 to 4294967295. If the option is not specified, the local device and NTP
server do not authenticate each other.
priority: Specifies this NTP server as the first choice under the same condition.
source interface-type interface-number: Specifies the source interface for NTP messages. For an NTP
message the local device sends to the NTP server, the source IP address is the primary IP address of this
interface. The interface-type interface-number argument represents the interface type and number.
version number: Specifies the NTP version, where number is in the range of 1 to 4. The default value is
4.