End-to-end network testing

Details End-to-end network testing End-to-end network testing

2006-12-19

2006-12-19

Taylor, Barry (Department: 2617)

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Testing of subscriber loop or terminal

C379S027010, C379S027020, C379S022020, C379S010020

Reexamination Certificate

active

07151819

ABSTRACT:
The invention includes a system and a method for testing a communication network. The inventive method transmits a first signal from a first point to a second point of the communication network, where the first and the second points are remotely located. The inventive method further includes recording a first time value of the transmitting of the first signal using a first clock, receiving a second signal at the second point of the communication network, and recording a second time value of the receiving using a second click. The first clock and the second clock operate from a substantially similar reference. The method may further include comparing the first signal and the second signal as a function of the first and second time values. Also, the method may determine at least one performance characteristic of the communication network based on the comparison.

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Abate et al., “AT&T's New Approach to the Synchronization of Telecommunication Networks”, IEEE Communications Magazine, Apr. 1989, pp. 35-45.

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