Thales

Gérard Colas

Christian Pitot

This method enables the reconstitution of messages fragmented in packets. It comprises a process for taking a census of the packets made available to a terminal () by transmission networks (Na, Nb) and a process for the reassembling of messages from packets listed by the census-taking process. These two processes implement a table of pointers pointing at the packets made available to the terminal () by the transmission networks (Na, Nb), sorted out by membership message, said pointers being placed, for each membership message, in a stack according to the order in which the packets that they point at are made available to the terminal () and being provided with information or status fields enabling the reporting of doubles or discrepancies between the order in which the packets of a stack are made available and the natural order of the message fragments constituted by the payloads of the packets, and the fate of the packet pointed at during the reassembling process.

Method for the reconstitution of messages conveyed by one or more packet-switched transmission networks

The invention relates to the selection and sorting, by a device having access to one or more packet transmission networks, of the packets relating to it, from among the entirety of the packets made available by the networks, given that the packets respect at least two layers of protocols or even more. It consists of a method of selecting and sorting that successively implements, in respect of searches for matching addresses, two directories of addresses, the first of so-called lower levels having as elements the various possible combinations of the values taken by the addressing information contained in the service information fields of the first two levels of protocols, the second so-called higher levels having as elements the addressing information contained in the service information fields of the protocols of levels higher than two, the elements of the first and second directories being linked by compatibility links targeting those that can simultaneously be in the service information fields of a packet relevant to the device.

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Versailles, France

Gérard Colas