Method and circuit arrangement for determining the quality of vi

Details Method and circuit arrangement for determining the quality of vi Method and circuit arrangement for determining the quality of vi

1991-08-07

1992-08-25

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of centralized switching system

371 201, 375 10, G06F 1104, H04B 346, H04M 324

Patent

active

051426536

ABSTRACT:
For determining the quality of virtual connections between input lines and output lines of an ATM switching equipment, the plurality of accepted and output message cells is separately acquired in a call-associated manner in the ATM switching equipment on the basis of cell headers of the message cells accepted via the input lines and, respectively, output to the output lines. In response to the cleardown of a respective virtual connection, the loss rate of the message cells is then calculated as a measure for the quality of the respective virtual connection from the previously, separately-acquired plurality of accepted and output message cells.

REFERENCES:
patent: 4542507 (1985-09-01), Read
patent: 4736402 (1988-04-01), Landis
patent: 5081666 (1992-01-01), Blaschek et al.
Koinuma, et al, "An ATM Switching System Based on a Distributed Control Architecture", XII International Switching Symposium, Session A7, May 1990 pp. 21-26.

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