This is the Manager statistics display.
This shows message and connection statistics for inwards connections, which are all the devices sending messages to the Client, and the outwards connection, which is the Tunnel connection.
The Total Messages shows the total number of messages processed since the Service started.
The Messages Last hour shows the number of messages processed in the preceding hour.
The Messages This hour shows the total messages processed during the current hour.
The Messages per Second shows a dynamic rate of messages processed based on the messages processed during the last statistics sampling interval.
The Connections show the number of active connections, including all individual TCP connections.
The times are self explanatory.