HP 6125G HP 6125G & 6125G/XG Blade Switches Network Management and Mon - Page 30

ntp-service multicast-client

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By default, the number is 100. 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, while a dynamic association is a temporary association created by the system during operation. A dynamic association is removed if the system fails to receive messages from it over a specific long period of time. In client/server mode, for example, when you carry out a command to synchronize the time to a server, the system creates a static association, and the server just responds passively upon the receipt of a message, rather than creating an association (static or dynamic). In symmetric mode, static associations are created at the symmetric-active peer side, and dynamic associations are created at the symmetric-passive peer side. In broadcast or multicast mode, static associations are created at the server side, and dynamic associations are created at the client side. Examples # Set the maximum number of dynamic NTP sessions allowed to be established to 50. system-view [Sysname] ntp-service max-dynamic-sessions 50 ntp-service multicast-client Syntax ntp-service multicast-client [ ip-address ] View undo ntp-service multicast-client [ ip-address ] VLAN interface view Default level 3: Manage level Parameters ip-address: Sets a multicast IP address, which defaults to 224.0.1.1. Description Use ntp-service multicast-client to configure the device to operate in NTP multicast client mode and use the current interface to receive NTP multicast packets. Use undo ntp-service multicast-client to remove the configuration. By default, the device does not operate in any NTP operation mode. Examples # Configure the device to operate in multicast client mode and receive NTP multicast messages on VLAN-interface 1, and set the multicast address to 224.0.1.1. system-view [Sysname] interface vlan-interface 1 [Sysname-Vlan-interface1] ntp-service multicast-client 224.0.1.1 24

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24
By default, the number is 100.
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, while a dynamic association is a temporary association created by the system
during operation. A dynamic association is removed if the system fails to receive messages from it over
a specific long period of time. In client/server mode, for example, when you carry out a command to
synchronize the time to a server, the system creates a static association, and the server just responds
passively upon the receipt of a message, rather than creating an association (static or dynamic). In
symmetric mode, static associations are created at the symmetric-active peer side, and dynamic
associations are created at the symmetric-passive peer side. In broadcast or multicast mode, static
associations are created at the server side, and dynamic associations are 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
VLAN interface view
Default level
3: Manage level
Parameters
ip-address
: Sets a multicast IP address, which defaults to 224.0.1.1.
Description
Use
ntp-service multicast-client
to configure the device to operate in NTP multicast client mode and use
the current interface to receive NTP multicast packets.
Use
undo ntp-service multicast-client
to remove the configuration.
By default, the device does not operate in any NTP operation mode.
Examples
# Configure the device to operate in multicast client mode and receive NTP multicast messages on
VLAN-interface 1, and set the multicast address to 224.0.1.1.
<Sysname> system-view
[Sysname] interface vlan-interface 1
[Sysname-Vlan-interface1] ntp-service multicast-client 224.0.1.1