R211x-HP Flexfabric 11900 Network Management and Monitoring Command Reference

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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, while 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.
<Sysname> system-view
[Sysname] ntp-service max-dynamic-sessions 50
Related commands
display ntp-service sessions
ntp-service multicast-client
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.
Syntax
ntp-service multicast-client [ ip-address ]
undo ntp-service multicast-client [ ip-address ]
Default
The device does not operate in any NTP association mode.
View
Interface view
Predefined user roles
network-admin
mdc-admin
Parameters
ip-address: Specifies a multicast IP address. The default is 224.0.1.1. A multicast server and client must be
configured with the same multicast IP address.
Usage guidelines
After you configure this command, the device listens to NTP messages with the destination address as the
specified multicast address.
If you have configured the device to operate in multicast client mode on an interface with this command,
do not add the interface to any aggregate group. To add the interface to an aggregate group, remove
the configuration of the command.
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