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Abstract

A method for testing a network element includes receiving from a network element into a buffer (40) a first clock signal (25) of the network element. The method includes receiving into the buffer (40) from a first port (31) of the network element a first plurality of data values to be verified in response to the first clock signal (25). The method also includes transferring a second plurality of data values to be verified to a second port (32) of the network element in response to a second clock signal (29), and comparing the second plurality of data values with the first plurality of data values. A system for testing a network element includes a testing element operable to couple a first port (31) to a second port (32) of a network element. The testing element is operable to receive a first plurality of data values from the first port of the network element and to transfer a second plurality of data values to the second port of the network element. The system also includes a data processing element (75) operable to couple to the network element to compare the first plurality of data values transferred from the network element with the second plurality of data values received by the network element.

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