公开(公告)号：US10608774B2

公开(公告)日：2020-03-31

申请号：US16047798

申请日：2018-07-27

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Simon Tse ,  Martin Birk ,  Shweta Vachhani ,  Kathleen Tse

IPC: H04J14/02 ,  H04B10/25 ,  H04Q11/00

Abstract: Devices, computer-readable media and methods are disclosed for verifying that an optical transmit/receive device is correctly installed. For example, a processing system including at least one processor may activate a first light source of an optical transmit/receive device of a telecommunication network and detect a receiving of a light from the first light source at a port of an optical add/drop multiplexer of the telecommunication network. The processing system may then verify the optical transmit/receive device and the port of the optical add/drop multiplexer match a network provisioning order, when the receiving of the light from the first light source is detected, and may generate an indication that the optical transmit/receive device is correctly installed, when the optical transmit/receive device and the port of the optical add/drop multiplexer match the network provisioning order.

公开(公告)号：US20200036467A1

公开(公告)日：2020-01-30

申请号：US16047798

申请日：2018-07-27

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Simon Tse ,  Martin Birk ,  Shweta Vachhani ,  Kathleen Tse

IPC: H04J14/02 ,  H04Q11/00 ,  H04B10/25

Abstract: Devices, computer-readable media and methods are disclosed for verifying that an optical transmit/receive device is correctly installed. For example, a processing system including at least one processor may activate a first light source of an optical transmit/receive device of a telecommunication network and detect a receiving of a light from the first light source at a port of an optical add/drop multiplexer of the telecommunication network. The processing system may then verify the optical transmit/receive device and the port of the optical add/drop multiplexer match a network provisioning order, when the receiving of the light from the first light source is detected, and may generate an indication that the optical transmit/receive device is correctly installed, when the optical transmit/receive device and the port of the optical add/drop multiplexer match the network provisioning order.

公开(公告)号：US10547384B2

公开(公告)日：2020-01-28

申请号：US16022212

申请日：2018-06-28

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Gagan Choudhury ,  Kathleen Meier-Hellstern ,  Alvin Goddard ,  Narayan Padi ,  Simon Tse ,  Tzuu-Yi Wang ,  Kathleen Tse ,  Martin Birk

IPC: H04J14/02 ,  H04B10/27 ,  H04L12/24 ,  G06F16/23

Abstract: A software-defined network multi-layer controller (SDN-MLC) may communicate with multiple layers of a telecommunication network. The SDN-MLC may have an optimization algorithm that helps manage, in near real-time, the multiple layers of the telecommunication network.

公开(公告)号：US10411990B2

公开(公告)日：2019-09-10

申请号：US15845335

申请日：2017-12-18

Applicant: AT&T Intellectual Property I, L.P. ,  Cornell University

Inventor： Shih-Hao Tseng ,  Ao Tang ,  Simon Tse ,  Gagan Choudhury

IPC: H04L12/703 ,  H04L12/715 ,  H04L12/717 ,  H04L12/721 ,  H04L12/741 ,  H04L12/755 ,  H04L12/771

Abstract: Concepts and technologies disclosed herein are directed to routing stability in a hybrid software-defined networking (“SDN”) network in which control plane functionality is shared between a centralized SDN controller and a plurality of local routers. The controller can collect data plane messages from the plurality of local routers, extract information corresponding to source nodes and edges of a graph representative of the hybrid SDN network, and store the information as entries in a table. The controller can identify any outdated entries and remove any outdated entries from the table. The controller can obtain recovered information missing from the information collected from the data plane messages. The controller also can calculate an effective capacity of the edges. The controller can then generate a stable routing pattern based upon the recovered information and the effective capacity. The controller can deploy the stable routing pattern in the hybrid SDN network.

公开(公告)号：US10298329B1

公开(公告)日：2019-05-21

申请号：US16022267

申请日：2018-06-28

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Gagan Choudhury ,  Kathleen Meier-Hellstern ,  Alvin Goddard ,  Narayan Padi ,  Simon Tse

IPC: H04B10/27 ,  H04J14/02

Abstract: A software-defined network multi-layer controller (SDN-MLC) may communicate with multiple layers of a telecommunication network. The SDN-MLC may have an optimization algorithm that helps manage, in near real-time, the multiple layers of the telecommunication network.

公开(公告)号：US11563640B2

公开(公告)日：2023-01-24

申请号：US16219290

申请日：2018-12-13

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Gagan Choudhury ,  Simon Tse ,  Narayan Padi ,  Alvin Goddard ,  Lynn Rivera

IPC: H04L41/12 ,  H04L45/00 ,  H04L9/40 ,  H04L41/00 ,  H04L43/0811 ,  H04L43/028

Abstract: A parser model may be used with software-defined applications or controllers. A network topology may be detected and based on the change in the network topology, a network device may filter certain network data traffic for processing by a software-defined network controller.

公开(公告)号：US11303565B2

公开(公告)日：2022-04-12

申请号：US17068786

申请日：2020-10-12

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Gagan Choudhury ,  Gaurav Thakur ,  Simon Tse ,  Kathleen Meier-Hellstern

IPC: H04B10/00 ,  H04L45/00 ,  H04L45/64 ,  H04L43/0882 ,  H04Q11/00 ,  H04L45/50

Abstract: A processing system including at least one processor may obtain traffic measurements for end-to-end paths in a telecommunication network, calculate traffic estimates for the end-to-end paths in future time periods based on the traffic measurements in accordance with at least one machine learning model, calculate traffic estimates for primary paths in the telecommunication network based upon the traffic estimates for the end-to-end paths, compute a backup path configuration for a primary path of the telecommunication network for the future time periods based upon the traffic estimates for the primary paths in the future time periods, detect a change in the backup path configuration for the primary path in a future time period based upon the computing, and adjust a backup path in accordance with the backup path configuration when the change in the backup path configuration is detected.

公开(公告)号：US11171869B2

公开(公告)日：2021-11-09

申请号：US16380287

申请日：2019-04-10

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Yaron Koral ,  Simon Tse ,  Steven A. Monetti ,  Tzuu-Yi Wang ,  Jennifer Rexford ,  Xiaoqi Chen ,  Shir Landau Feibish

IPC: H04L1/00 ,  H04L12/801 ,  H04L12/851 ,  H04L12/26 ,  H04L12/803 ,  H04L12/823

Abstract: Systems, methods, and apparatuses provide a scalable framework for analyzing queuing and transient congestion in network switches. The system reports which flows contributed to the queue buildup and enables direct per-packet action in the data plane to prevent transient congestion. The system may be configured to analyze queuing in legacy network switches.

公开(公告)号：US20210273738A1

公开(公告)日：2021-09-02

申请号：US17302975

申请日：2021-05-17

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Simon Tse ,  Martin Birk ,  Shweta Vachhani ,  Kathleen Tse

IPC: H04J14/02 ,  H04B10/25 ,  H04Q11/00

Abstract: Devices, computer-readable media and methods are disclosed for verifying that an optical transmit/receive device is correctly installed. For example, a processing system including at least one processor may activate a first light source of an optical transmit/receive device of a telecommunication network and detect a receiving of a light from the first light source at a port of an optical add/drop multiplexer of the telecommunication network. The processing system may then verify the optical transmit/receive device and the port of the optical add/drop multiplexer match a network provisioning order, when the receiving of the light from the first light source is detected, and may generate an indication that the optical transmit/receive device is correctly installed, when the optical transmit/receive device and the port of the optical add/drop multiplexer match the network provisioning order.

公开(公告)号：US11038616B2

公开(公告)日：2021-06-15

申请号：US16902197

申请日：2020-06-15

Applicant: AT&T Intellectual Property I, L.P.

Inventor： Martin Birk ,  David Frederick Lynch ,  Gaurav Thakur ,  Simon Tse

IPC: H04B10/00 ,  H04J14/02 ,  H04L12/751 ,  H04B10/079 ,  H04J14/00

Abstract: Devices, computer-readable media and methods are disclosed for selecting paths in reconfigurable optical add/drop multiplexer (ROADM) networks using machine learning. In one example, a method includes defining a feature set for a proposed path through a wavelength division multiplexing network, wherein the proposed path traverses at least one link in the network, and wherein the at least one link connects a pair of reconfigurable optical add/drop multiplexers, predicting an optical performance of the proposed path, wherein the predicting employs a machine learning model that takes the feature set as an input and outputs a metric that quantifies predicted optical performance, and determining whether to deploy a new wavelength on the proposed path based on the predicted optical performance of the proposed path.