Multiplex communications – Diagnostic testing – Determination of communication parameters
Reexamination Certificate
2004-05-07
2010-10-19
Moe, Aung S (Department: 2474)
Multiplex communications
Diagnostic testing
Determination of communication parameters
C370S241000, C370S242000, C370S246000, C370S251000, C370S400000, C370S509000, C370S510000, C455S502000, C375S354000, C375S358000, C375S363000, C375S368000
Reexamination Certificate
active
07817568
ABSTRACT:
Provided are a method for measuring characteristics of a path between nodes by using active testing packets based on priority, i.e., an inter-node path characteristic measuring method, which can measure and provide characteristics of a generated node, when an inter-node data transmission path is generated based on Multi-Protocol Label Switching (MPLS) to provide a path with satisfactory transmission delay, jitter and packet loss that are required by a user, and to provide a computer-readable recording medium for recording a program that implement the method. The method includes the steps of: a) synchronizing system time of the nodes with a global standard time; b) forming each testing packet; c) registering frame sequence and the global standard time during transmission; and d) calculating transmission delay time, jitter and packet loss by using time stamp and packet sequence information of a frame received by the destination node and transmitting the result to the management system.
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Kim Tae-Il
Lee Hyeong-Ho
Paik Euihyun
Blakely , Sokoloff, Taylor & Zafman LLP
Electronics and Telecommunications Research Institute
Grey Christopher P
Moe Aung S
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