Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2000-05-02
2001-10-30
Hsu, Alpus H. (Department: 2662)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S395430, C375S287000
Reexamination Certificate
active
06310861
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention is directed to a method for measuring ATM cell rates in networks having a switching systems in which the frequency of occurrence of incoming ATM cells is call-individually acquired.
2. Description of the Related Art
Calculating methods or algorithms for measuring the frequency of occurrence of ATM cells are often employed in the prior art.
However, these types of measurements are usually specifically adapted to the connection. For example, most of these measurements are implemented within a fixed time interval.
European Patent Application EP 0548 995 addresses a monitoring method with which incoming ATM cells are measured within a predetermined time span, but does not address the traffic characteristic of the ATM cells determines the measuring procedure.
SUMMARY OF THE INVENTION
The invention is based on the object of disclosing a flexible method for implementing ATM cell measurement. What is particularly advantageous about the invention is that the first step of a two-step measuring method is triggered by incoming ATM cells. It is also advantageous that no fixed measuring time interval is provided. The ATM cells themselves or, respectively, the traffic characteristic are the criteria as to when the measurement is implemented.
Advantageous developments of the invention are recited below.
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Strehle, G. O., “Me&bgr;modell zur Leistungsanalyse virtueller Transportverbindunger in realen Paketvermittlungsnetzen”, Elektronische Rechenanlagen, Heft Jun. 1985, pp. 316-322.
Ho Duc
Hsu Alpus H.
Schiff & Hardin & Waite
Siemens Aktiengesellschaft
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