H3C SOHO IE4300, Command Reference Manual

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System view
Predefined user roles
network-admin
Parameters
peer-name
: Specifies a symmetric-passive peer by its host name, a case-insensitive string of 1 to
253 characters.
ipv6-address : Specifies a symmetric-passive peer by its IPv6 address. It must be a unicast
address, rather than a multicast address.
vpn-instance vpn-instance-name
: Specifies the MPLS L3VPN instance to which the
symmetric-passive peer belongs. The
vpn-instance-name
argument 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. The value range for the keyid argument is 1 to 4294967295. If you do not specify this
option, the local device and the peer do not authenticate each other.
maxpoll maxpoll-interval
: Specifies the maximum polling interval. The value range for the
maxpoll-interval
argument is 4 to 17, to which base 2 is raised to get the interval in seconds.
The maximum polling interval is in the range of 2
4
to 2
17
(16 to 131072) seconds. The default value
for the
maxpoll-interval
argument is 6 and the default maximum polling interval is 2
6
(64)
seconds.
minpoll minpoll-interval
: Specifies the minimum polling interval. The value range for the
minpoll-interval
argument is 4 to 17, to which base 2 is raised to get the interval in seconds.
The minimum polling interval is in the range of 2
4
to 2
17
(16 to 131072) seconds. The default value for
the
minpoll-interval
argument is 6 and the default minimum polling interval is 2
6
(64) seconds.
priority
: Specifies the peer specified by
ipv6-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, 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 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 instance, 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 in the
specified VPN instance. If you do not include the
vpn-instance vpn-instance-name
option in
the command, the command removes the symmetric-passive peer on the public network.
If the specified IPv6 address of the passive peer is a link local address, you must specify the source
interface for NTP messages and cannot specify a VPN instance for the passive peer.