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公开(公告)号：US10666359B2
公开(公告)日：2020-05-26
申请号：US16385224
申请日：2019-04-16
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Gagan Choudhury , Kathleen Meier-Hellstern , Alvin Goddard , Narayan Padi , Simon Tse
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.
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公开(公告)号：US20200007237A1
公开(公告)日：2020-01-02
申请号：US16385224
申请日：2019-04-16
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Gagan Choudhury , Kathleen Meier-Hellstern , Alvin Goddard , Narayan Padi , Simon Tse
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.
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公开(公告)号：US10887019B2
公开(公告)日：2021-01-05
申请号：US16733844
申请日：2020-01-03
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
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.
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公开(公告)号：US10673957B2
公开(公告)日：2020-06-02
申请号：US16021363
申请日：2018-06-28
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Simon Tse , Alvin Goddard , Catherine Ferraro , Gagan Choudhury , Narayan Padi , Lynn Rivera
Abstract: In one example, a method for monitoring the state and health of a centralized software defined networking controller includes detecting, by a standby software defined networking controller, when a number of path computation client sessions reported by an active software defined networking controller fails to match an expected number; verifying, by the standby software defined networking controller after expiration of a predefined delay implemented after the detecting, that the number of path computation client sessions reported by the active software defined networking controller still fails to match the expected number; and assuming, by the standby software defined networking controller after the verifying, a role of the active software defined networking controller.
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公开(公告)号：US20200007236A1
公开(公告)日：2020-01-02
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
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.
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Patent Agency Ranking
公开(公告)号：US20190190819A1
公开(公告)日：2019-06-20
申请号：US15845280
申请日：2017-12-18
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Gagan Choudhury , Kang Xi , Simon Tse , Narayan Padi , Alvin Goddard , Aswatnarayan Raghuram
IPC: H04L12/721 , H04L12/723 , H04L12/771 , H04L12/801 , H04L12/803 , H04L12/851 , H04L12/24
CPC classification number: H04L45/38 , H04L41/0896 , H04L41/145 , H04L45/22 , H04L45/28 , H04L45/42 , H04L45/50 , H04L45/56 , H04L45/64 , H04L47/11 , H04L47/122 , H04L47/2441
Abstract: Concepts and technologies disclosed herein are directed to deadlock-free traffic rerouting in software-defined networking (“SDN”) networks have been disclosed herein. According to one aspect of the concepts and technologies disclosed herein, a centralized SDN controller can determine that a packet flow along a path within at least a portion of a network is to be rerouted from the path to a new path. The centralized SDN controller can initiate a reroute of the packet flow to the new path. The centralized SDN controller can request a bandwidth for the new path. The bandwidth can be determined such that bandwidth oversubscription on the new path is avoided. In response to the packet flow settling on the new path, the centralized SDN controller can adjust a requested bandwidth of the packet flow to a desired value to complete the reroute of the packet flow from the path to the new path.
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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.
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公开(公告)号：US20200007629A1
公开(公告)日：2020-01-02
申请号：US16021363
申请日：2018-06-28
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Simon Tse , Alvin Goddard , Catherine Ferraro , Gagan Choudhury , Narayan Padi , Lynn Rivera
IPC: H04L29/08 , H04L12/26 , H04L12/717 , H04L12/54
Abstract: In one example, a method for monitoring the state and health of a centralized software defined networking controller includes detecting, by a standby software defined networking controller, when a number of path computation client sessions reported by an active software defined networking controller fails to match an expected number; verifying, by the standby software defined networking controller after expiration of a predefined delay implemented after the detecting, that the number of path computation client sessions reported by the active software defined networking controller still fails to match the expected number; and assuming, by the standby software defined networking controller after the verifying, a role of the active software defined networking controller.
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公开(公告)号：US10728140B2
公开(公告)日：2020-07-28
申请号：US15845280
申请日：2017-12-18
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Gagan Choudhury , Kang Xi , Simon Tse , Narayan Padi , Alvin Goddard , Aswatnarayan Raghuram
IPC: H04L12/721 , H04L12/723 , H04L12/771 , H04L12/24 , H04L12/803 , H04L12/851 , H04L12/801 , H04L12/715 , H04L12/717 , H04L12/707 , H04L12/703
Abstract: Concepts and technologies disclosed herein are directed to deadlock-free traffic rerouting in software-defined networking (“SDN”) networks. According to one aspect of the concepts and technologies disclosed herein, a centralized SDN controller can determine that a packet flow along a path within at least a portion of a network is to be rerouted from the path to a new path. The centralized SDN controller can initiate a reroute of the packet flow to the new path. The centralized SDN controller can request a bandwidth for the new path. The bandwidth can be determined such that bandwidth oversubscription on the new path is avoided. In response to the packet flow settling on the new path, the centralized SDN controller can adjust a requested bandwidth of the packet flow to a desired value to complete the reroute of the packet flow from the path to the new path.
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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
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.
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