HPE FlexFabric 5930 Series Network Management And Monitoring Command Reference page 42

Views
System view
Predefined user roles
network-admin
Parameters
peer-name: Specifies the host name of the symmetric-passive peer, a case-insensitive string of 1 to
253 characters.
ipv6-address: Specifies the IPv6 address of the symmetric-passive peer. It must be a unicast
address, rather than a multicast address.
vpn-instance vpn-instance-name: Specifies the MPLS L3VPN to which the symmetric-passive peer
belongs, where vpn-instance-name is a case-sensitive string of 1 to 31 characters. If the
symmetric-passive peer 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 peer,
where keyid is in the range of 1 to 4294967295. If this option is not specified, the local device and the
peer do not authenticate each other.
priority: Specifies the peer specified by ip-address or peer-name as the first choice under the same
condition.
source interface-type interface-number: Specifies the source interface for IPv6 NTP messages. If
the specified passive peer address is not a link local address, the source IPv6 address for IPv6 NTP
messages sent by the local device is the IPv6 address of the specified source interface. If the
specified passive peer address is a link local address, the IPv6 NTP messages are sent from the
specified source 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 passive peer for the device, the device and its IPv6 passive peer can be
synchronized to each other. If their clocks are in synchronized state, the clock with a high stratum
level is synchronized to the clock with a lower stratum level.
To synchronize the PE to a PE or CE in a VPN, provide 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 ipv6
unicast-peer command, the command removes the symmetric-passive peer with the IPv6 address
of ipv6-address in the specified VPN. If you do not include the vpn-instance vpn-instance-name
option in the command, the command removes the symmetric-passive peer with the IPv6 address of
ipv6-address in the public network.
Examples
# Specify the device with the IPv6 address of 2001::1 as the symmetric-passive peer of the device,
and specify the source interface for IPv6 NTP messages as VLAN-interface 1.
<Sysname> system-view
[Sysname] ntp-service ipv6 unicast-peer 2001::1 source vlan-interface 1
Related commands
•
ntp-service authentication enable
•
ntp-service authentication-keyid
•
ntp-service reliable authentication-keyid
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