Ntp-Service Ipv6 Unicast-Server - HPE FlexFabric 5930 Series Network Management And Monitoring Command Reference

ntp-service ipv6 unicast-server

Use ntp-service ipv6 unicast-server to specify an IPv6 NTP server for the device.
Use undo ntp-service ipv6 unicast-server to remove an IPv6 NTP server specified for the device.
Syntax
ntp-service
vpn-instance-name ] [ authentication-keyid keyid | priority | source interface-type
interface-number ] *
undo ntp-service ipv6 unicast-server { server-name | ipv6-address } [ vpn-instance
vpn-instance-name ]
Default
No IPv6 NTP server is specified for the device.
Views
System view
Predefined user roles
network-admin
Parameters
server-name: Specifies the host name of the NTP server, a case-insensitive string of 1 to 253
characters.
ipv6-address: Specifies the IPv6 address of the NTP server. It must be a unicast address, rather than
a multicast address.
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 this 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 IPv6 NTP messages. If
the specified IPv6 NTP server address is not a link local address, the source IPv6 address for IPv6
NTP messages sent by the local device to the NTP server is the IPv6 address of the specified source
interface. If the specified IPv6 NTP server address is a link local address, the IPv6 NTP messages
are sent from the specified source interface, and the source address of the messages is the link local
address of the interface. The interface-type interface-number argument represents the interface type
and number. If you do not specify an interface, the device automatically selects the source IPv6
address of IPv6 NTP messages. For more information, see RFC 3484.
Usage guidelines
When you specify an IPv6 NTP server for the device, the device is synchronized to the IPv6 NTP
server, but the IPv6 NTP server is not synchronized to the device.
To synchronize the PE to a PE or CE in a VPN, specify the vpn-instance vpn-instance-name option
in the 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.
ipv6 unicast-server { server-name |
34
ipv6-address } [ vpn-instance