Adaptive traffic routing in communication networks

    公开(公告)号:US10305785B2

    公开(公告)日:2019-05-28

    申请号:US15309133

    申请日:2015-03-31

    Inventor: Kaiyuan Huang

    Abstract: At least one data-stream is re-routed and a network element is provided for re-routing at least one data-stream. A first part and a second part of a data-stream received at a first node and are transmitted to a second node via two different network paths, respectively. The first is transmitted from the first node to the second node via a first network path. A second network path is determined, and the difference between latencies of the first and second network paths is also determined. If the latency of the first network path is larger than the latency of the second network path, the at least one data-stream at the first node is re-routed from the first network path to the second network path provided that the time gap between data packets received by the first node exceeds said difference between latencies.

    Centralized data path establishment augmented with distributed control messaging

    公开(公告)号:US09998362B2

    公开(公告)日:2018-06-12

    申请号:US15025071

    申请日:2013-10-11

    Inventor: Kaiyuan Huang

    CPC classification number: H04L45/28 H04L45/42 H04L45/44 H04L45/62 H04L45/64

    Abstract: A communication network has a plurality of network elements (NEs) and links between the NEs. A method includes computing, at a central controller, a data path from the source NE to the destination NE along a number of intermediate NEs, sending, from the central controller, central control messages to all or at least a plurality of NEs among the source NE, the intermediate NEs and the destination NE, the central control messages including explicit path information, the explicit path information in at last some of the central control messages comprising more information than needed by the recipient NE for its set-up for data transport along the path, and sending distributed control messages between NEs of the path, the distributed control messages being based on at least one central control message received by one of the NEs.

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