Host A wants to simultaneously send messages to hosts B and C. A, B and C are connected by a broadcast channel-a packet sent by A is carried by the channel to both B and C. The broadcast channel connecting A, B, and Ccan independently lose or corrupt messages to each destination. For example, a message sent from A might be correctly received by B, but not by C. Design a stop-and-wait-like error control protocol for reliably transferring a packet from A to B and C such that A will not accept the next payload from the upper layer until both B and C have correctly received the current payload. Describe the packet formats used.