The firewall multicast order enable command enables the in-order delivery function for multicast packets.
The undo firewall multicast order enable command disables the in-order delivery function for multicast packets.
By default, the in-order delivery function for multicast packets is enabled.
The in-order delivery function applies to scenarios where multicast traffic is large, and multicast packets need to be delivered in order. After the in-order delivery function is disabled, packets are not delivered in order and may be out of order.