Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2004-09-03
2008-08-26
Kizou, Hassan (Department: 2619)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S395410, C370S445000
Reexamination Certificate
active
07417951
ABSTRACT:
Provided are an apparatus and method for limiting bandwidths of burst aggregate flows according to the present invention. The apparatus comprises: a bandwidth measuring unit measuring a bandwidth of at least one input aggregate flow; a grade determining unit determining abnormal grades according to abnormal levels of the input aggregate flows; a bandwidth limit determining unit determining a bandwidth volume and aggregate flow to be limited; a bandwidth limiting unit inputting a result determined by the bandwidth limit determining unit, limiting or releasing a bandwidth of a aggregate flow selected among the input aggregate flows and outputting the selected aggregate flow; and a status information storage unit storing status information including a usage bandwidth, an abnormal grade, and a limited bandwidth volume of the input aggregate flow. Accordingly, the apparatus and method provide an effect of dropping attack aggregate flows corresponding to excessive traffic while not influencing normal aggregate flows.
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“Controlling High Bandwidth Aggregates in the Network”, R. Mahajan, et al., ACM SIGCOMM computer communications review, vol. 32, No. 3, Jul. 2002, pp. 62-73.
An Gaeil
Jang Jong Soo
Kim Ki Young
Blakely , Sokoloff, Taylor & Zafman LLP
Electronics and Telecommunications Research Institute
Kizou Hassan
Maglo Emmanuel
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