Multiplex communications – Diagnostic testing – Determination of communication parameters
Patent
1996-12-06
1998-05-26
Chin, Wellington
Multiplex communications
Diagnostic testing
Determination of communication parameters
370250, H04J 314
Patent
active
057577781
ABSTRACT:
The present invention provides an apparatus and a method for testing protocol and traffic levels in broadband integrated services digital networks(B-ISDNs). The apparatus includes a test control block for receiving a test cell traffic transmission request signal from a test function user block, formatting a cell to be transmitted and generating an ATM cell, receiving the ATM cell based on an ATM cell reception display signal and controlling an operation mode to thereby test the protocol and traffic levels; a test traffic transmission block for receiving the ATM cell generated by the test control block and setting an operation mode based on the operation mode set request signal from the test control block; a test traffic reception block for receiving the ATM cell which is synchronized with a byte clock, setting a time stamp for displaying the received time, processing the time stamp to the test control block, and setting an operation mode based on the operation mode set request signal from the control block; and a cable connection block for receiving the ATM cell generated by the test traffic transmission block and outputting it to each port in a line interface port interface, receiving the ATM cell from each of the ports, and then synchronizing the ATM cell with a byte clock to thereby output it the test traffic reception block.
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Hong Beom-Ki
Kim Meong-Seok
Kim Weon-Soon
Lee Joon-Weon
Chin Wellington
Electronics and Telecommunications Research Institute
Korea Telecommunication Authority
Vu Huy D.
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