Netconf should timeout connection that is not established after specified time in connection-timeout-millis and then should try to reconnect connection according to reconnecting strategy (obeying other connection parameters like max-connection-attempts etc.)

Now, if netconf tries to connect to a device that does not adverties hello message, netconf tiemouts after the specified time but does not cancel established SSH session and immediately tries to establish new connection, ignoring delays between connections and maximum connection attempts.

If netconf tries to establish ssh session with device with slow ssh server implementation (simulated by TCP server), it does not timeout after specified time at all.