R3166-R3206-HP High-End Firewalls System Management and Maintenance Command Reference-6PW101

110
Parameters
number: Maximum number of dynamic NTP sessions that are allowed to be established, in the range of
0 to 100.
Description
Use the ntp-service max-dynamic-sessions command to set the maximum number of dynamic NTP
sessions that are allowed to be established locally.
Use the undo ntp-service max-dynamic-sessions command to restore the maximum number of dynamic
NTP sessions to the system default.
By default, the number is 100.
A single device can have a maximum of 128 associations at the same time, including static associations
and dynamic associations. A static association refers to an association that a user has manually created
by using an NTP command, while a dynamic association is a temporary association created by the
system during operation. A dynamic association will be removed if the system fails to receive messages
from it over a specific long time. In the client/server mode, for example, when you carry out a command
to synchronize the time to a server, the system will create a static association, and the server will just
respond passively upon the receipt of a message, rather than creating an association (static or dynamic).
In the symmetric mode, static associations will be created at the symmetric-active peer side, and dynamic
associations will be created at the symmetric-passive peer side; in the broadcast or multicast mode, static
associations will be created at the server side, and dynamic associations will be created at the client side.
Examples
# Set the maximum number of dynamic NTP sessions allowed to be established to 50.
<Sysname> system-view
[Sysname] ntp-service max-dynamic-sessions 50
ntp-service multicast-client
Syntax
ntp-service multicast-client [ ip-address ]
undo ntp-service multicast-client [ ip-address ]
View
Interface view
Default level
2: System level
Parameters
ip-address: Multicast IP address, defaulting to 224.0.1.1.
Description
Use the ntp-service multicast-client command to configure the device to work in the NTP multicast client
mode and use the current interface to receive NTP multicast packets.
Use the undo ntp-service multicast-client command to remove the configuration.
By default, the device does not work in the NTP multicast client mode.