Arista Networks, Inc.
QUANTIFYING PERFORMANCE OF A CONNECTION BY MONITORING DUPLICATE ACKNOWLEDGEMENT NUMBERS

Abstract:

In some embodiments, a method receives a first acknowledgement message that acknowledges receipt of a first packet and determines whether the first acknowledgement message is a duplicate of a previous acknowledgement message that was sent previous to the first acknowledgement message. When the first acknowledgement message is the duplicate of the previous acknowledgement message, the method detects when a second acknowledge message is received that acknowledges receipt of a second packet. Then, the method determines that the second acknowledgement message is not the duplicate of the previous acknowledgement message and measures a metric based on the detecting of the first acknowledgement message and the second acknowledgement message.