Ntp-Service Multicast-Client - H3C S5120-SI Series Command Reference Manual

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 any NTP operation mode.
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