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公开(公告)号：US20220345239A1
公开(公告)日：2022-10-27
申请号：US17240488
申请日：2021-04-26
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Stefano Binetti , Paolo Sironi
Abstract: A first network element includes trail trace identifier information in an optical network frame. The first network element obtains data to transmit over an optical network link to a second network element. The first network element generates an optical network frame with alignment marker bytes, which are followed by padding bytes. The optical network frame also includes overhead bytes following the padding bytes. The overhead bytes include a Multi-Frame Alignment Signal (MFAS) byte, a link status byte, and reserved bytes. The optical network frame also includes a payload bytes following the overhead bytes. The payload bytes encode at least a portion of the data to transmit to the second network element. The first network element inserts trail trace identifier information into the reserved bytes in the overhead bytes. The trail trace identifier information identifies the first network element as a source of the optical network frame.
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公开(公告)号：US11362754B1
公开(公告)日：2022-06-14
申请号：US17249547
申请日：2021-03-04
Applicant: Cisco Technology, Inc.
Inventor： Sudhir Kayamkulangara , Stefano Binetti , Rayen Mohanty
Abstract: Embodiments for adaptive inline modulation tuning for optical interfaces is described. The inline modulation tuning is provided by optical nodes, where the optical nodes exchange optical modulation information and node ability information between optical devices in a node pair. An optimal modulation scheme for the node pair is selected based on modulation abilities of each node and associated transceiver, as well as a link quality and performance observed for the optical link.
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公开(公告)号：US20210211786A1
公开(公告)日：2021-07-08
申请号：US17202984
申请日：2021-03-16
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Luca Della Chiesa , Stefano Binetti , Stefano Piciaccia , Giovanni Osnago
IPC: H04Q11/00
Abstract: A method of obtaining a measure of asymmetry between optical fibers of a forward and reverse paths is provided in order to synchronize clocks of optical nodes connected by asymmetrical optical fiber paths. The method includes receiving, at first and second arrival times, from a first optical network device, a first optical signal transmitted on a first optical fiber and a second optical signal transmitted on a second optical fiber, calculating a first time difference between the second arrival time and the first arrival time. The method includes determining a measure of asymmetry between the first optical fiber and the second optical fiber based on the first time difference and a second time difference between a first time of transmission by the first optical network device of the first optical signal and a second time of transmission by the first optical network device of the second optical signal.
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公开(公告)号：US20250080231A1
公开(公告)日：2025-03-06
申请号：US18458413
申请日：2023-08-30
Applicant: Cisco Technology, Inc.
Inventor： Randy Zhang , Stefano Binetti , Dirk Schroetter , Valerio Viscardi
IPC: H04B10/572 , H04B10/079
Abstract: In one example embodiment, a wavelength of a first network node is identified for communication over a network with a second network node by sweeping wavelengths of the second network node. A wavelength of the second network node is adjusted based on the wavelength of the first network node to align wavelengths of the first network node and the second network node for communication.
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公开(公告)号：US11888582B2
公开(公告)日：2024-01-30
申请号：US17806408
申请日：2022-06-10
Applicant: Cisco Technology, Inc.
Inventor： Sudhir Kayamkulangara , Stefano Binetti , Rayen Mohanty
CPC classification number: H04J14/021 , H04B10/40 , H04L41/12
Abstract: Embodiments for adaptive inline modulation tuning for optical interfaces is described. The inline modulation tuning is provided by optical nodes, where the optical nodes exchange optical modulation information and node ability information between optical devices in a node pair. An optimal modulation scheme for the node pair is selected based on modulation abilities of each node and associated transceiver, as well as a link quality and performance observed for the optical link.
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Patent Agency Ranking
公开(公告)号：US11569924B2
公开(公告)日：2023-01-31
申请号：US17240488
申请日：2021-04-26
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Stefano Binetti , Paolo Sironi
Abstract: A first network element includes trail trace identifier information in an optical network frame. The first network element obtains data to transmit over an optical network link to a second network element. The first network element generates an optical network frame with alignment marker bytes, which are followed by padding bytes. The optical network frame also includes overhead bytes following the padding bytes. The overhead bytes include a Multi-Frame Alignment Signal (MFAS) byte, a link status byte, and reserved bytes. The optical network frame also includes a payload bytes following the overhead bytes. The payload bytes encode at least a portion of the data to transmit to the second network element. The first network element inserts trail trace identifier information into the reserved bytes in the overhead bytes. The trail trace identifier information identifies the first network element as a source of the optical network frame.
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公开(公告)号：US11483635B2
公开(公告)日：2022-10-25
申请号：US17202984
申请日：2021-03-16
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Luca Della Chiesa , Stefano Binetti , Stefano Piciaccia , Giovanni Osnago
IPC: H04Q11/00 , H04B10/079 , H04B10/071 , H04L7/00
Abstract: A method of obtaining a measure of asymmetry between optical fibers of a forward and reverse paths is provided in order to synchronize clocks of optical nodes connected by asymmetrical optical fiber paths. The method includes receiving, at first and second arrival times, from a first optical network device, a first optical signal transmitted on a first optical fiber and a second optical signal transmitted on a second optical fiber, calculating a first time difference between the second arrival time and the first arrival time. The method includes determining a measure of asymmetry between the first optical fiber and the second optical fiber based on the first time difference and a second time difference between a first time of transmission by the first optical network device of the first optical signal and a second time of transmission by the first optical network device of the second optical signal.
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公开(公告)号：US10986426B1
公开(公告)日：2021-04-20
申请号：US16732836
申请日：2020-01-02
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Luca Della Chiesa , Stefano Binetti , Stefano Piciaccia , Giovanni Osnago
IPC: H04Q11/00 , H04B10/079 , H04B10/071 , H04L7/00
Abstract: A method of obtaining a measure of asymmetry between optical fibers of a forward and reverse paths is provided in order to synchronize clocks of optical nodes connected by asymmetrical optical fiber paths. The method includes receiving, at first and second arrival times, from a first optical network device, a first optical signal transmitted on a first optical fiber and a second optical signal transmitted on a second optical fiber, calculating a first time difference between the second arrival time and the first arrival time. The method includes determining a measure of asymmetry between the first optical fiber and the second optical fiber based on the first time difference and a second time difference between a first time of transmission by the first optical network device of the first optical signal and a second time of transmission by the first optical network device of the second optical signal.
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公开(公告)号：US09602355B2
公开(公告)日：2017-03-21
申请号：US13955494
申请日：2013-07-31
Applicant: Cisco Technology, Inc.
Inventor： Stefano Binetti , Luca Della Chiesa , Gary Nicholl , Walid Wakim , Theodore Kupfer , Mohammed I. Tatar , Cedrik K. Begin
IPC: H04L12/24 , H04L12/46 , H04L12/931
CPC classification number: H04L41/0896 , H04L12/4641 , H04L49/354
Abstract: A method, system, and computer-readable medium for a network interface with adjustable rate are disclosed. For example, one method involves receiving a request to activate a virtual lane of an interface, where the request is received by a first node. The interface is configured to facilitate data communication between the first node and a second node, and the interface includes a plurality of virtual lanes that include at least one active virtual lane, and at least one inactive virtual lane. The method also involves, in response to receiving the request, negotiating with the second node to select an additional virtual lane from the at least one inactive virtual lane. The method involves activating the additional virtual lane. After the activating, the first node and the second node are configured to use the active virtual lane(s) and the additional virtual lane for data communication.
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公开(公告)号：US20150036694A1
公开(公告)日：2015-02-05
申请号：US13955494
申请日：2013-07-31
Applicant: Cisco Technology, Inc.
Inventor： Stefano Binetti , Luca Della Chiesa , Gary Nicholl , Walid Wakim , Theodore Kupfer , Mohammed I. Tatar , Cedrik K. Begin
IPC: H04L12/24
CPC classification number: H04L41/0896 , H04L12/4641 , H04L49/354
Abstract: A method, system, and computer-readable medium for a network interface with adjustable rate are disclosed. For example, one method involves receiving a request to activate a virtual lane of an interface, where the request is received by a first node. The interface is configured to facilitate data communication between the first node and a second nod, and the interface includes a plurality of virtual lanes that include at least one active virtual lane, and at least one inactive virtual lane. The method also involves, in response to receiving the request, negotiating with the second node to select an additional virtual lane from the at least one inactive virtual lane. The method involves activating the additional virtual lane. After the activating, the first node and the second node are configured to use the active virtual lane(s) and the additional virtual lane for data communication.
Abstract translation: 公开了一种具有可调速率的网络接口的方法，系统和计算机可读介质。 例如，一种方法涉及接收激活接口的虚拟通道的请求，其中请求由第一节点接收。 接口被配置为便于第一节点和第二节点之间的数据通信，并且接口包括多个虚拟通道，其包括至少一个活动虚拟通道和至少一个非活动虚拟通道。 该方法还响应于接收到请求而涉及与第二节点协商以从至少一个非活动虚拟通道中选择另外的虚拟通道。 该方法涉及激活附加虚拟通道。 在激活之后，第一节点和第二节点被配置为使用活动虚拟通道和用于数据通信的附加虚拟通道。
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