Abstract: A method is provided for supervising a plurality of units in a communications network. The method includes a step of a first supervisor device receiving from a plurality of units information notifications having a plurality of information fields. For each information notification received, at least one imprint is generated, which includes codes extracted from predetermined fields of the notification. The method further includes counting the number of occurrences of at least one imprint, and notifying at least one master supervisor device of at least one imprint and the number of occurrences counted for that imprint.

Abstract: A method for collection of flow descriptions for flows relating to at least one client network, the client network being attached to an interconnection network. The method receives flow descriptions for flows coming from the client network, aggregates the flow descriptions for the flows coming from the client network as a function of an aggregation criterion, transmits the aggregated flow descriptions to a collection device, analyzes the flow descriptions for the flows coming from the client network to determine at least one flow characteristic specific to the client network, receives flow descriptions for flows coming from the interconnection network, filters the flow descriptions for the flows coming from the interconnection network, in which the flow descriptions for flows lacking the at least one determined flow characteristic specific to the client network are eliminated, and transmits the filtered flow descriptions to the collection equipment.

Abstract: A device manages a management database in the form of objects to be managed that are referenced according to a reference specification. Equipment exchanges management data in the form of data structures indicated by patterns each corresponding to a respective referenced object and being assigned a respective identifier. In order to manage a given object, the device and the equipment store synchronization information associating the reference of the given object and the corresponding pattern identifier. In order to manage a given object, the equipment sends the corresponding pattern assigned the respective identifier and a data ticket which has a structure indicated by said pattern and is assigned said identifier. The device translates the pattern into the respective referenced object as a function of the identifier of said pattern and the synchronization information, and then stores the data from the received ticket in the management database.

Abstract: A data packet transmission network comprises a stream of packets of data sent by a first terminal passes in transit through at least one network equipment with which there is associated a stream measurement unit; wherein said first terminal and said measurement unit are connected to a collection unit. The measurement method comprising the following steps: the first terminal sends a specific stream of packets, each having a different determined size, the sizes being such that in a set of r packets, r being a positive integer less than or equal to the number of packets of the stream, there are not two subsets comprising the same number of packets and having the same cumulative total size; the measurement unit analyzes at least one packet and at most r packets of said stream passing in transit through the network equipment.

Abstract: In a data packet transmission network a stream of packets of data sent by a first terminal passes in transit through at least one network equipment with which there is associated a stream measurement unit; wherein said first terminal and said measurement unit are connected to a collection unit.

Abstract: In order to minimize a bandwidth required for the transfers of communication network administration information, said information relating to objects pertaining to hardware, software or network operation elements, catalogued in an administration information base (11) and with each of which is associated a formal language specification, the system comprises a translator module (10). The module (10) is designed to generate on the basis of the specification for each object, a pair of words the value of whose first word pertains to an indication of the object and the value of whose second word pertains to an information length of the object. The module (10) is also designed to generate one or more templates comprising an ordered set of pairs of words and an identifier, making it possible to subsequently send an ordered string of information corresponding to each template.

Abstract: The switching system receives, originating from an external network facility, data units according to a point-to-point transmission interface format, transporting packets of a higher layer protocol. The data units originating from the external network facility are processed so as to recover first packets. Test traffic carried by second packets of the higher layer protocol is generated, and the first and second packets are multiplexed. The stream of multiplexed packets is converted into data units of the point-to-point transmission interface format, which are re-transmitted to the switching system.

Abstract: The invention provides a method for the manufacture and transmissive irradiation of a sample, comprising the steps of: A Providing a particle-optical system having an internal low-pressure chamber and suitable for the generation of an electron beam and an intersecting ion beam in said chamber; B Providing a specimen within the chamber, carried by a manipulator; C Irradiating the specimen with the ion beam so as to cut a sample from the specimen; D Relatively displacing the sample thus cut to a sample holder than can be manipulated; E Attaching the sample to the sample holder; F Using an electron beam to perform transmissive irradiation of the sample thus attached to the sample holder, characterized in that step F is performed in the low-pressure chamber of the particle-optical system according to step A.

Abstract: The invention provides a method for the manufacture and transmissive irradiation of a sample, comprising the steps of:

Abstract: The switching system receives, originating from an external network facility, data units according to a point-to-point transmission interface format, transporting packets of a higher layer protocol. The data units originating from the external network facility are processed so as to recover first packets. Test traffic carried by second packets of the higher layer protocol is generated, and the first and second packets are multiplexed. The stream of multiplexed packets is converted into data units of the point-to-point transmission interface format, which are re-transmitted to the switching system.