I read the below description for man-in-the-middle attack -

"The client (Bob) initiates a connection with the server (Alice). Unknown to both Bob and Alice, an attacker (Eve) is waiting to intercept their connection negotiation. Eve receives Bob's request for a connection and authenticates herself as Alice. Eve then initiates a connection with Alice posing as Bob and authenticates herself. Two secure SSH sessions are now in place with Eve reading all of the data being passed between Bob and Alice in clear text."

How does Eve get the connection from Bob when Alice is supposed to get the request ?