Keywords used: Multicast Upgrade Tool, Reliable Multicast, IGMP Snooping, Bulk firmware update, UFTP, AEM, Network bandwidth optimization.

Unlike Unicast (one-to-one) or Broadcast (one-to-all), Multicast is . The server sends the firmware packet stream once. The network infrastructure (switches and routers) intelligently replicates the packets only to the ports where recipients have requested the data.