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30 条记录 (耗时 0.025 秒)

    System and method for communication network service connectivity
    11.
    发明授权
    System and method for communication network service connectivity 有权

    公开(公告)号：US10454583B2

    公开(公告)日：2019-10-22

    申请号：US15430070

    申请日：2017-02-10

    申请人： Hamid Mehrvar ,  Mohammad Mehdi Mansouri Rad

    发明人： Hamid Mehrvar ,  Mohammad Mehdi Mansouri Rad

    IPC分类号： H04B10/27 ,  H04B10/079 ,  H04J14/02

    摘要： A method for assigning a network path after receiving a connection request to connect a first node with a second node of a network. The method including evaluating a network utilization parameter of the network, such as a network load or blocking probability, at that point in time. If the network utilization parameter is below a minimum threshold level, the method includes carrying out the steps of identifying a set of n network paths through the network that connect the first node with the second node and are absent non-linear links, performing network path selection by selecting p network paths from the set of n network paths that have the best linear OSNR, and, selecting a network path from the set of p network paths that balances the wavelength utilization between the first node and the second node of a network.

    Fast connection turn-up with path-based dummy lights
    14.
    发明授权
    Fast connection turn-up with path-based dummy lights 有权

    公开(公告)号：US11038615B2

    公开(公告)日：2021-06-15

    申请号：US16383310

    申请日：2019-04-12

    申请人： Hamid Mehrvar ,  Christopher Janz

    发明人： Hamid Mehrvar ,  Christopher Janz

    IPC分类号： H04J14/02 ,  H04Q11/00

    摘要： A method of managing an optical communications network comprising a plurality of nodes interconnected by optical sections. The method comprises: identifying one or more pairs of adjacent DL-equipped nodes at which dummy light (DL) hardware is deployed, respective dummy light (DL) hardware being deployed at fewer than the plurality of the nodes of the optical communications network, the respective DL hardware deployed at a particular node configured to supply dummy light to each optical section extending from the particular node, and defining a respective single-section DL path between each identified pair of adjacent DL-equipped nodes; identifying one or more pairs of non-adjacent DL-equipped nodes at which DL hardware is deployed, and defining a respective multi-section DL path between each identified pair of non-adjacent DL-equipped nodes; and causing the deployed DL hardware to supply DL light to each of the single- and the multi-section DL paths.

    System and methods for network synchronization
    15.
    发明授权
    System and methods for network synchronization 有权

    公开(公告)号：US10341083B2

    公开(公告)日：2019-07-02

    申请号：US15607031

    申请日：2017-05-26

    申请人： Michael Mayer ,  Hamid Mehrvar

    发明人： Michael Mayer ,  Hamid Mehrvar

    IPC分类号： H04B10/40 ,  H04L7/00 ,  H04B10/2507 ,  H04J3/06

    摘要： One aspect of the disclosure is directed to a system and method for determining the propagation delay for a signal to traverse an optical fiber between two transceivers. The method is performed by a first network element and includes transmitting a message to a second transceiver over a first optical fiber. The method further includes configuring both network elements such that the first NE receives a reply message from the second NE on the first optical fiber. This reply message includes an indication of the internal time for the second NE to transmit the reply message. Accordingly the one way propagation delay on the first optical fiber can be determined. Another aspect is directed to a system and method for using the determined one way propagation delay to synchronize clocks of the two NEs using a symmetric network synchronizing protocol such as precision timing protocol, and correcting for differences in the one way propagation delays which make up the round trip propagation delay. Some embodiments can do this without stopping the operation of the network while pausing (buffering) data flows while the one way propagation delays are determined.

    Method and system for distributed control of large photonic switched networks
    19.
    发明授权
    Method and system for distributed control of large photonic switched networks 有权

    公开(公告)号：US10306344B2

    公开(公告)日：2019-05-28

    申请号：US15201563

    申请日：2016-07-04

    申请人： Hamid Mehrvar

    发明人： Hamid Mehrvar

    IPC分类号： H04B10/04 ,  H04Q11/00 ,  H04L12/947

    摘要： The present application provides methods of determining bandwidth demands and allocating bandwidth for a network including a plurality of groups of sub-networks. Each subnetwork includes a plurality of server racks and an aggregation switch node configured to control the flow of traffic to and from the plurality of server racks in the subnetwork. The aggregation switch nodes in the network are optically coupled to one another via at least one switch controlled by a switch controller. Each group of subnetworks of the plurality of groups of subnetworks also includes a group controller in communication with each of the aggregation switch nodes in the group. The group controllers are communicatively coupled to one another. The interaction between the aggregation switch nodes, the group controllers and the switch controllers enable distributed and dynamic control of switching between the subnetworks.