R0106-HP MSR Router Series Network Management and Monitoring Command Reference(V7)

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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 IPv6 address of ipv6-address in the specified
VPN. If you do not include the vpn-instance vpn-instance-name option in this command, the command
removes the NTP server with the IPv6 address of ipv6-address in the public network.
If the specified IPv6 address of the NTP server is a link local address, you must specify the source
interface for NTP messages and cannot specify a VPN for the NTP server.
Examples
# Specify the IPv6 NTP server 2001::1 for the device.
<Sysname> system-view
[Sysname] ntp-service ipv6 unicast-server 2001::1
Related commands
• ntp-service authentication enable
• ntp-service authentication-keyid
• ntp-service reliable authentication-keyid
ntp-service max-dynamic-sessions
Use ntp-service max-dynamic-sessions to set the maximum number of dynamic NTP sessions allowed to
be established locally.
Use undo ntp-service max-dynamic-sessions to restore the default.
Syntax
ntp-service max-dynamic-sessions number
undo ntp-service max-dynamic-sessions
Default
The maximum number of dynamic NTP sessions is 100.
Views
System view
Predefined user roles
network-admin
Parameters
number: Sets the maximum number of dynamic NTP associations allowed to be established, in the range
of 0 to 100.
Usage guidelines
A single device can have a maximum of 128 concurrent associations, including static associations and
dynamic associations. A static association refers to an association that a user has manually created by
using an NTP command. A dynamic association is a temporary association created by the system during
operation.
Examples
# Set the maximum number of dynamic NTP associations allowed to be established to 50.