The invention is a system for providing virtual connections through an ATM interworking multiplexer on a call-by-call basis. A signaling processor receives signaling for a call and selects the virtual connection for the call. The signaling processor generates new signaling that identifies the selection and transfers the new signaling to the ATM interworking multiplexer that accepted the access connection for the call. The multiplexer converts user information from the access connection into ATM cells for transmission over the virtual connection in accord with the new signaling.

Broadband telecommunications system

The present invention includes a method, system, and apparatus for providing communication control. The invention includes a method in which signaling is processed externally to a switch before it is applied by the network elements. The processor is able to select network characteristics and signal the network elements based the selections. A network employing the processing method is also included, as well as a signaling system that employs the processing method.

Method, system and apparatus for telecommunications control

An Operations Center (OC) (200) acts as a central key manager and intermediary in securely, reliably and non-repudiably delivering a document (3) from a sender (100) to a recipient (300). The OC (200) acts as a key manager to facilitate the process of strong authentication of the sender (100) and the recipient (300), encryption of the delivery (510), and setup of reliable connections (2A, 2B, 2C). In a preferred embodiment, the reliable connections (2A, 2B, 2C) are virtual private network connections.

Secure and reliable document delivery

A packet transfer scheme in a network system capable of realizing a high speed, large capacity inter-network communication under an internet environment. A network interconnection apparatus (router) has a memory for storing a correspondence relationship between a virtual connection used in receiving a packet from one logical network and a virtual connection used in transmitting a packet to another logical network, and a transfer at a datalink layer is carried out according to the registered correspondence relationship, to effectively form a bypass pipe capable of transferring a packet by an datalink layer level processing alone over a plurality of networks from the transmission terminal to the destination terminal, so that a high speed packet transfer between networks can be realized.

Network interconnection apparatus network node apparatus and packet transfer method for high speed large capacity inter-network communication

A Web server is provided having a multi-homed, modular framework. The modular framework allows extensions to the Web server to be easily compiled into the Web server, allowing the extensions to run natively as part of the server instead of incurring the overhead typical of CGI scripts, for example. The multi-homing capabilities of the Web server provide the appearance to Web users of multiple distinct and independent servers, allowing a small company or individual to create the same kind of Web presence enjoyed by larger companies. In effect, multiple virtual servers run on the same physical machine. The Web server as a whole is easily extensible to allow additional capabilities to be provided natively within the Web server itself. Furthermore, each virtual server is independently configurable in order to turn different capabilities on or off or to modify operation of the virtual server. The Web server is also provided with enhanced security features, built-in animation capability, and other features that afford maximum flexibility and versatility.

Web server employing multi-homed, modular framework

A method for setting up virtual connections in packet switching networks is disclosed wherein a virtual connection within a second packet switching network is used to maintain or create a virtual connection between subscriber equipment in a first packet switching network. The first packet switching network employs the signaling protocol of the second packet switching network when initiating the second virtual connection so that it is not necessary for the second packet switching network to recognize a specific signaling protocol.

Method for setting up virtual connections in packet switching networks

A method for setting up virtual connections in packet switching networks is disclosed wherein a virtual connection within a second packet switching network is used to maintain or create a virtual connection between subscriber equipment with a first packet switching network. Signaling equipment located within first packet switching network, but which is not directly connected to the subscriber equipment, employs the signaling protocol of the second packet switching network when initiating the second virtual connection so that it is not necessary for the second packet switching network to recognize a specific signaling protocol.

Method for maintaining virtual connections given an at least partial outage of connecting paths

Auf ein Rufpaket hin, mit welchem der Aufbau einer virtuellen Verbindung innerhalb eines ersten Paketvermittlungsnetzes (PVN1) gefordert wird, wird bei Nichtvorhandensein eines Verbindungsweges eine Ersatzverbindung unter Einbeziehung eines zweiten Paketvermittlungsnetzes (PVN2) eingerichtet. Innerhalb des zweiten Paketvermittlungsnetzes werden dabei das betreffende Rufpaket sowie diesem nachfolgende Signalisierungspakete und Datenpakete der betreffenden virtuellen Verbindung transparent in Datenpaketen der Ersatzverbindung ubertragen.

Verfahren zum Einrichten von virtuellen Verbindungen in Paketvermittlungsnetzen

Following a call packet by means of which setting-up of a virtual connection within a first packet switching network (PVN1) is requested, an alternative connection including a second packet switching network (PVN2) is set up if no connecting path exists. Within the second packet switching network, the relevant call packet and signalling packets and data packets following the former, of the relevant virtual connection are transparently transferred in data packets of the alternative connection.

Method for establishing virtual connections in packet switching networks

A virtual connection initially set up within a first packet switching network (PVN1) is released from the faulty location through to the originating and destination switching devices when a connection fault occurs. A call packet is then generated from the originating switching device, following the occurrence of which an alternative connection including a second packet switching network (PVN2) is set up towards the destination switching device. The relevant call packet and signalling packets and data packets following the former, of the relevant virtual connection are then transparently transmitted in data packets of the alternative connection within the second packet switching network.

Richard Dipl.-Ing. Schoonhoven

Papers

Method for setting up virtual connections in packet switching networks

Method for maintaining virtual connections given an at least partial outage of connecting paths

Verfahren zum Einrichten von virtuellen Verbindungen in Paketvermittlungsnetzen

Method for establishing virtual connections in packet switching networks

Method for maintaining virtual connections in case of at least partial breakdown of branches