Self-learning switch. Consider an Ethernet LAN consisting of N nodes interconnected with a switch. Suppose the switchs forwarding table is initially empty. Suppose node A wants to perform a TCP three-way handshake with node B, where both nodes are on the LAN. Assuming this is the only traffic on the network, and there are no packet errors or loss, how many frames will be transmitted in the process of establishing the TCP connection? Assume node A knows the IP address of node B, and ARP tables have all the necessary mappings.