Path test system for ATM switch

Details Path test system for ATM switch Path test system for ATM switch

1997-10-23

1999-02-23

Nguyen, Chau

Multiplex communications

Diagnostic testing

Fault detection

370248, 371 204, H04J 314

Patent

active

058751777

ABSTRACT:
A sending trunk on the input side of an ATM switch is equipped with a test cell generating section, and a receiving trunk on the output side of the ATM switch is equipped with a test cell detecting section. The test cell generating section includes a unit for setting a test cell identifier in the header of a test cell and a unit for generating pieces of data with regularity in the information field of the test cell. The test cell detecting section includes a unit for detecting the test cell identifier from the header of a cell received and a unit for detecting regularity from data in the information field of the cell received. When a test cell is transmitted, the test cell detecting section evaluates the result of a test on the basis of the result of detection of the test cell identifier from the header of the test cell and the result of detection of the regularity from data in the information field of the test cell.

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