Siemens Aktiengesellschaft

Siemens Aktiengesell Schaft

Siemens Enterprise Communications Gmbh & Co. Kg

Unify Gmbh Co. Kg

Stefan Berndt

Christian Scheering

Thorsten Laux

Thomas Hanna

Bruno Bozionek

Ralf Neuhaus

Rainer Zimmermann

Rainer Uecker

Bernd Hinz

Alan Southall

Steffen Rusitschka

To assign clients distributed across a plurality of subnetworks to a server, one of the clients is first selected in a respective subnetwork. A search is carried out across the subnetworks by a respective selected client for other selected clients and for the server, whereby when it locates the server, the selected client stores server address information identifying said server and when it locates another selected client, it requests the server address information from that client and stores it on receipt. The stored server address information is transmitted by the selected client to one or a plurality of other selected or non-selected clients.

Method for assigning clients distributed across a plurality of networks to a server and a client for implementing the method

In a system having distributed components arranged in a logical ring structure, each component monitors only their respective neighboring component in the structure and the condition of the neighboring component is determined. If a component determines a condition of its neighboring component that corresponds to a predefinable condition, the component informs the other components of the system of the predefined condition of the neighboring component.

Monitoring condition of network with distributed components

For alternate operation of a terminal (EG) at at least two communication nodes (GK, GK), the terminal (EG) is first registered with a first of the communication nodes (GK). In this case, registration is followed by there being a logical connection between the terminal (EG) and the first communication node (GK). The obtainability of the first communication node (GK) is monitored, and in the event of the first communication node (GK) being unobtainable a status information item relating to the unobtainability is produced, and the status information item is taken as a basis for setting up a logical connection between the terminal (EG) and the second communication node (GK). The terminal (EG) is then automatically operated at the second communication node (GK).

Method and communication arrangement for alternately operating a terminal at at least two communication nodes

In order to operate a communication terminal for packet-oriented data transmission, at least one piece of status information is stored, for a communication terminal, in a memory unit associated with the communication terminal. Said status information is provided with a digital signature that is calculated from the status information by means of a private key for an asymmetrical encoding method associated with a first control unit associated with the communication terminal, for the resolution and/or conversion of network addresses. If the first control unit fails, a request is transmitted comprising the status information and the digital signature to associate the communication terminal with at least one second control unit, and the digital signature is checked. In the event of a positive check result, the communication terminal is associated with the second control unit.

Method and control program for operating a communication terminal for packet-oriented data transmission

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Bönen, Germany

Stefan Berndt