Alcatel-Lucent 7710 SR Configuration Manual page 225

Multicast
When configuring NTP the node can be configured to transmit or receive multicast packets on the
CCM MGMT port. Broadcast & Multicast messages can easily be spoofed, therefore,
authentication is strongly recommended. Multicast is used to configure the transmission of NTP
multicast messages. The no construct of this command removes the transmission of multicast
address from the configuration.
When transmitting multicast NTP messages the default address of 224.0.1.1 is used.
CLI Syntax: config>system>time>ntp
Example
The following example shows NTP enabled with the
A:ALA-12>config>system>time# info
----------------------------------------------
----------------------------------------------
A:ALA-12>config>system>time#
Multicastclient
This command is used to configure an address to receive multicast NTP messages on the CCM
MGMT port. The no construct of this command removes the multicast client.
If multicastclient is not configured, all NTP multicast traffic will be ignored.
CLI Syntax: config>system>time>ntp
Example
The following example shows NTP enabled with the
A:ALA-12>config>system>time# info
----------------------------------------------
----------------------------------------------
A:ALA-12>config>system>time##
7710 SR OS Basic System Configuration Guide
multicast[version version] [key-id key-id]
:
config>system>time>ntp#
config>system>time>ntp# multicast
config>system>time>ntp# no shutdown
server 192.168.15.221
multicast
no shutdown
multicastclient [authenticate]
:
config>system>time>ntp#
config>system>time>ntp# multicastclient authenticate
config>system>time>ntp# no shutdown
server 192.168.15.221
multicastclient
no shutdown
System Management
command configured.
multicast
command configured.
multicastclient
Page 225