Method of detecting intermediary communication device

Details Method of detecting intermediary communication device Method of detecting intermediary communication device

2005-05-24

2008-12-16

Moe, Aung S (Department: 2416)

Multiplex communications

Data flow congestion prevention or control

Flow control of data transmission through a network

C370S241100, C370S248000, C370S255000, C713S153000, C726S012000, C726S013000, C726S014000

Reexamination Certificate

active

07466654

ABSTRACT:
A method of detecting an intermediary communication device in a communication path of a target communication device by inserting a sensor in the path, recording communication packets to and from the target communication device, recording times for the packets, identifying packets in a first interconnection layer, calculating a minimum latency time for the packets, identify packets in a second interconnection layer that is at a different communication processing level than that of the first interconnection layer, calculating a minimum latency time for the packets of the second interconnection layer, and determining that an intermediary communication device is present in the path if an absolute difference between the minimum latency times is above a user-definable threshold.

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