Abstract: Virtual Private Network (VPN) dedicated to a customer using a physical transmission network based upon Multi-Protocol Label Switching (MPLS) technology including a plurality of Provider (P) devices and a plurality of Provider Edge (PE) devices, the customer owning at least two specific Customer Edge (CE) devices amongst a plurality of CE devices, a specific CE device being attached to a specific PE device and enabling the customer to gain access to any other CE device belonging to the same VPN, by the intermediary of PE devices to which are attached the CE devices. The VPN comprises several billing zones (10, 12, 14) being each defined by the application of a single flat rate.

Abstract: Virtual Private Network (VPN) dedicated to a customer using a physical transmission network based upon Multi-Protocol Label Switching (MPLS) technology including a plurality of Provider (P) devices and a plurality of Provider Edge (PE) devices, the customer owning at least two specific Customer Edge (CE) devices amongst a plurality of CE devices, a specific CE device being attached to a specific PE device and enabling the customer to gain access to any other CE device belonging to the same VPN, by the intermediary of PE devices to which are attached the CE devices. The VPN comprises several billing zones (10, 12, 14) being each defined by the application of a single flat rate.

Abstract: Virtual Private Network (VPN) dedicated to a customer using a physical transmission network based upon Multi-Protocol Label Switching (MPLS) technology including a plurality of Provider (P) devices and a plurality of Provider Edge (PE) devices, the customer owning at least two specific Customer Edge (CE) devices amongst a plurality of CE devices, a specific CE device being attached to a specific PE device and enabling the customer to gain access to any other CE device belonging to the same VPN, by the intermediary of PE devices to which are attached the CE devices. The VPN comprises several billing zones (10, 12, 14) being each defined by the application of a single flat rate.

Abstract: Method for transmitting high-priority packets in an IP transmission network based upon the Internet Protocol (IP) wherein low-priority packets or fragments of packets are transmitted between a sender and a receiver and at least a high-priority packet can be transmitted from the sender to the receiver by pre-emption of a low-priority packet or a fragment of packet. the method comprises in the sender, the steps of determining whether a low-priority packet or fragment of packet is being transmitted from the sender to the receiver when a high-priority packet has to be transmitted, setting to 1 a reserved bit within the IP header of the high-priority packet used as a pre-emption indicator if a low-priority packet or fragment of packet is currently transmitted, transmitting the high-priority packet with the pre-emption indicator set to 1 from the sender to the receiver, and resuming the transmission of the low-priority packet or fragment of packet at the end of transmission of the high-priority packet.

Abstract: A system and method for automatically configuring and launching Telnet “TN” 3270 client applications on a workstation operating in a Windows environment includes a Web application navigator located remotely from the workstation and an SNA application navigator installed on the workstation. The Web application navigator accessed via a Web browser provides session configuration information associated with various SNA target applications to the workstation. When a user selects one of the SNA target applications, the Web application navigator sends session configuration information to the workstation. This session configuration information includes a location and/or an identity of a TN3270 server associated with the SNA target application and necessary configuration parameters to be used by a TN3270 client to access it.

Abstract: A non-locking queueing mechanism is described for transferring information from a sending unit to a receiving unit through a queue in which there is no interference between the independent units (sender and receiver) during enqueueing or dequeueing. The invention thus avoids any form of interlock or serialism. The mechanism includes a first pointer (D), identifying the element area in the queueing device where the last dequeued information element, if any, was located, and a second pointer register for logging a second pointer (E) identifying the element area in the queueing device where the last enqueued information element, if any, was located, a first control block activated by the sending unit to enqueue the information element into the queueing device and for updating the second pointer, and a second control block activated by the recieving unit to dequeue the information element from the queueing device and for updating the first pointer.