1. In the figure shown below, Host A is connected to Host B by a path of 3 links with data rates R1, R2, and R bits/sec, respectively. Suppose that Host A sends a pair of packets where the second packet is sent T seconds after sending the first packet. Assume each packet has L bits, and each link has the same propagation delay dprop No other traffic exists on the path. Host RHost (a) Assume that Ri R2 > R3. What is the shortest interval T that ensures that