Multicast

When configuring NTP the node can be configured to transmit or receive multicast packets on the CPM MGMT port (CPM applies to the 7450 ESS and 7750 SR). Broadcast and multicast messages can easily be spoofed; therefore, authentication is strongly recommended. Multicast is used to configure the transmission of NTP multicast messages. When transmitting multicast NTP messages the default address of 224.0.1.1 is used. The following example enables NTP and multicast:

Example: MD-CLI

[ex:/configure system time ntp]
A:admin@node-2# info
    admin-state enable
    multicast {
    }

Example: classic CLI

config>system>time>ntp# info
----------------------------------------------
                multicast
                no shutdown
----------------------------------------------