Multiplex communications – Data flow congestion prevention or control – Control of data admission to the network
Reexamination Certificate
2007-08-08
2011-10-11
Vu, Huy (Department: 2461)
Multiplex communications
Data flow congestion prevention or control
Control of data admission to the network
C370S252000, C370S242000
Reexamination Certificate
active
08036121
ABSTRACT:
In a quality degradation (QD) portion estimating method on a network, a passive measuring unit connected with a management target network measures E2E flow quality (FQ) data on a route from a transmitting terminal connected with a different network to a receiving terminal connected with the management target network and upstream FQ data on the route from the transmitting terminal to the passive measuring unit in the management target network. A QD portion estimating section connected with the management target network collects E2E FQ data and upper stream FQ data measured by said passive measuring unit. A detecting section detects as a QD flow in the management target network, a flow related to the E2E FQ data that does not show degradation of FQ, for the upstream FQ data related to the same transmitting and receiving terminals, from among the E2E FQ data which show the degradation of FQ.
REFERENCES:
patent: 5815668 (1998-09-01), Hashimoto
patent: 7606896 (2009-10-01), Kobayashi
patent: 2007/0211645 (2007-09-01), Tachibana et al.
patent: 2000-224172 (2000-08-01), None
patent: 2002-64493 (2002-02-01), None
patent: 2002-64545 (2002-02-01), None
patent: 2002-271267 (2002-09-01), None
patent: 2002-271392 (2002-09-01), None
patent: 2003-258903 (2003-09-01), None
patent: 2005-210515 (2005-08-01), None
patent: 2006-33715 (2006-02-01), None
patent: 2006-80584 (2006-03-01), None
Empirical Study on Locating Congested Segments over the Internet Based on Multiple End-to-End Path Measurements by Tachibana et al. 2005.
Infering link characteristics from end-to-end path meadurements by Tsuru et al. 2001.
Masayoshi Kobayashi et al., “Flow Hinshitsu Kara no Network Hinshitsu Rekka Kasho Suitei no Mobunkatsu ni yoru Daikiboka Shuho no Teian to Hyoka”, IEICE Technical Report CS2005-35, Sep. 8, 2005, vol. 105, No. 280, “2.1. Jurai Hoshiki no Gairyaku”, “3. Mobunkatsu ni yoru Daikibomo eno Tekiyo Hoshiki”.
Masayoshi Kobayashi et al.—Estimating points of QoS degradation in the network from the aggregation of per-flow quality information—Systems Platforms Research Laboratories, NEC Corporation—pp. 1-6.
Hajime Sugimura et al.—Packet Monitoring and Testing Methods for VolP Networks—2001—p. 1.
Masayoshi Kobayashi et al., “Estimating points of QoS degradation in the network from the aggregation of per-flow quality information” (IEICE Technical Report, vol. 104, No. 707, IEICE, Mar. 11, 2005.
Japanese Office Action dated Dec. 2, 2010 in corresponding Japanese Application No. 2007-522279 with English translation of enclosed wavy lined portion.
United States Office Action—U.S. Appl. No. 11/993,155—Oct. 28, 2010.
Chery Dady
NEC Corporation
Vu Huy
Young & Thompson
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