13.2.2 Session-less Client connection

The Server can also be accessed via a Session-less Service invocation (illustrated in Figure 66). Session-less Service invocations still access the Server with security but create a one-time connection. This type of connection can only be used by ConnectionManager exchanges that do not require a saved state across multiple invocations. For example, it cannot be used for a ReserveCommunicationIdsCmd since the communication IDs are released when the Session ends.