Alcatel N.v.

Alcatel Lucent

Alcatel

Frank L Denissen

Johannes A Van Tetering

Werner Mario Liekens

Hendrik Germain Van Hove

Jan Van Tetering

The present invention relates to a Software replacement method, for replacing a first software package that comprises a command handling interface which is present at a computer system, by a second software package over a connection between an operator terminal and this command handling interface. At first the second software package is installed besides the first software package at the computer system. Subsequently, the second software package is activated. Then a contacting part of the second software package, after activation of this second software package, contacts the command handling interface. The command handling interface at contacting of the command handling Interface by the contacting part of the second software package, switches from the first software package towards the second software package and keeps open the connection between the operator terminal and the command handling interface.

Software replacement method and related software replacement system

A method of expanding a command line comprising at least one command word and word separators delineating the at least one command word is presented. A trigger to expand the command line is detected, and upon detection of the trigger, a current cursor position within the command line is determined. From the current cursor position, a particular command word that is currently being edited is determined. The last characters of a particular command word is deleted from the cursor position onwards, thereby yielding a particular truncated command word. A match for the particular truncated command word is found in a command word database, and the particular truncated command is completed according to the match.

Enhanced command line expansion

A method and device for testing ATM connections, wherein the contents of the information part of test cells are repeated, including time indication, sequence number within a connection and connection number. The repetition of the contents occurs in octet pairs with the second octet in each pair being the inverse of the first octet in the pair.

Testing the characteristics of an ATM connection between two points of

A traffic generator (TFG) is provided for generating a packet information stream (OUT) with predetermined characteristics based on individual characteristics of a plurality of traffic sources (S0-255, G240-241). Such a traffic generator is used in an Asynchronous Transfer Mode or ATM networks and thus plays an important role in the emergence of such networks. The traffic generator includes a generation memory (GT) for storing a series of individual data (Group A-E) related to traffic sources (S0-255, G240-241), and includes a generation circuit (GM) for cyclically reading a series of individual source related data. Each of the individual source related data (Group A-E) relates to at least one of the traffic sources (S0-255, G240-241) as well as to generation decision data (GD, GEOT) associated thereto. Based on its associated generation decision data (GD, GEOT), the generation circuit (GM) determines whether a packet is to be generated for the at least one traffic source (S0-255, G240-241) or not, and generates an idle packet if no packet is to be generated for the at least one traffic source (S0-255, G240-241). The generation decision data (GD, GEOT) eliminates the need to run a complicated and time-consuming algorithm for calculating a new series of individual source related data every time the actual bit rate of one of the sources is updated.

Traffic generator

A device (CP) to generate a number of multicast packets derived from a original packet applied at an input (I1/m) of a telecommunication system. The device has a device input (I) coupled to an input (I1/m) of the system and a device output (IN) connected to a single inlet (IN1/m) of a packet switching network (SN) also belonging to the system and coupled to outputs thereof. All the multicast packets are transmitted in series via the single device output (IN) so that only the corresponding single inlet (IN1/m) of the switching network (SN) is used for performing point-to-multipoint or multicast connections independently of the number of multicast packets to be derived from each original packet.

Multicast packet generation device for a packet switching

Transmission quality assessment arrangement for a communication switching system wherein a stream of cells of information is transmitted from an input (I) to an output (O) over a same communication path. It is adapted, at the input, to insert in the cell stream test cells each having a tag indicative of its position in the resultant cell stream and to count, at the output, the position of each test cell in the latter cell stream. From the difference of the position counted and that stored in the leg of a test cell an indication of the number of added or lost cells--indicative of the transmission quality--is derived.

Transmission quality assessment arrangement

A device (PMD) and a method for measuring the performances characteristics of a communication path of a telecommunication packet switching network (ATM) by transmitting test packets through this path while other live traffic is operating. The test packets are live data communication packets of the live traffic and of which the communication data has been replaced by performance measurement data. No traffic of test packets is thereby added to the existing live traffic and the latter is not disturbed by the measurements.

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Boom, Belgium

Frank L Denissen