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公开(公告)号：US20160134671A1
公开(公告)日：2016-05-12
申请号：US14995544
申请日：2016-01-14
Applicant: Cisco Technology, Inc.
Inventor： Mark A. Gustlin , Oded Trainin , Luca Della Chiesa
IPC: H04L29/06
CPC classification number: H04L65/4069 , H04B10/516 , H04J14/02 , H04L47/10 , H04L47/13 , H04L47/39 , H04L49/352
Abstract: An apparatus is provided that includes communication channels, and m communication media interfaces, and v virtual lanes. V is a positive integer multiple of the least common multiple of m and n. An information stream is transferred into data and alignment blocks striped across all of the v virtual lanes, the blocks being communicated from the virtual lanes onto the communication channels. The blocks are received on the communication channels. Each of the communication channels transmits a different portion of the blocks striped across all of the v virtual lanes.In more particular embodiments, v>=n>=m. The communication media interfaces can be electrical and optical. Each of the communication channels can include a SerDes interface operating at least 5 Gigabits per second. Furthermore, each of the m communication media interfaces is configured to transmit a different stream of information over a single optical fiber.
Abstract translation: 提供了一种包括通信信道，以及m个通信媒体接口和v个虚拟通道的装置。 V是m和n的最小公倍数的正整数倍数。 信息流被传送到在所有v虚拟通道之间划分的数据和对准块，该块从虚拟通道传送到通信信道上。 这些块在通信信道上被接收。 每个通信信道传输跨所有v虚拟通道条带化的块的不同部分。 在更具体的实施例中，v> = n> = m。 通信媒体接口可以是电气和光学的。 每个通信信道可以包括每秒操作至少5千兆位的SerDes接口。 此外，m个通信媒体接口中的每一个被配置为通过单个光纤发送不同的信息流。
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12.发明授权公开(公告)号：US12052532B2
公开(公告)日：2024-07-30
申请号：US17871093
申请日：2022-07-22
Applicant: Cisco Technology, Inc.
Inventor： Luca Della Chiesa , Christian Schmutzer
IPC: G01H9/00 , H04B10/07 , H04B10/073 , H04B10/61 , H04Q11/00
CPC classification number: H04Q11/0062 , G01H9/004 , H04B10/07 , H04B10/073 , H04B10/615 , H04Q2011/0073 , H04Q2011/0083
Abstract: Presented herein are techniques to manage optical network infrastructure. A method includes inducing a predetermined vibration on a fiber optic cable, the predetermined vibration being sufficient to cause a change to at least one of a state of polarization and a phase of optical signals being carried by respective optical fibers in the fiber optic cable, detecting, at a first endpoint, using a first coherent optical receiver, and at a second endpoint, using a second coherent optical receiver, the change to the at least one of the state of polarization and the phase of the optical signals, and based on the detecting, determining that the first endpoint and the second endpoint are connected to, or in communication with, one another via at least one finer in the fiber optic cable.
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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：US11451600B2
公开(公告)日：2022-09-20
申请号：US16936580
申请日：2020-07-23
Applicant: Cisco Technology, Inc.
Inventor： Mark A. Gustlin , Oded Trainin , Luca Della Chiesa
IPC: H04L65/61 , H04L47/10 , H04B10/516 , H04L49/351 , H04J14/02
Abstract: In one embodiment, an apparatus includes n electrical communication channels, m optical communication media interfaces, and a plurality of muxes. The plurality of muxes are configured to receive an information stream. The information stream is carried over the n electrical communication channels and the m optical communication media interfaces. The plurality of muxes are further configured to transform the information stream from v virtual lanes. Each virtual lane includes a plurality of data blocks from the information stream and an alignment block, wherein v is a positive integer multiple of the least common multiple of m and n, v is greater than n, and n is equal to m.
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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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Patent Agency Ranking
公开(公告)号：US10757152B2
公开(公告)日：2020-08-25
申请号：US16203962
申请日：2018-11-29
Applicant: Cisco Technology, Inc.
Inventor： Mark A. Gustlin , Oded Trainin , Luca Della Chiesa
IPC: H04L29/06 , H04L12/801 , H04B10/516 , H04L12/931 , H04J14/02
Abstract: In one embodiment, an apparatus includes n electrical communication channels, m optical communication media interfaces, and a plurality of muxes. The plurality of muxes are configured to receive an information stream, the information stream carried over the n electrical communication channels and the m optical communication media interfaces. The plurality of muxes are further configured to transform the information stream from v virtual lanes, each virtual lane comprising a plurality of data blocks from the information stream and an alignment block, wherein v is a positive integer multiple of the least common multiple of m and n.
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公开(公告)号：US20180252335A1
公开(公告)日：2018-09-06
申请号：US15487148
申请日：2017-04-13
Applicant: Cisco Technology, Inc.
Inventor： Joel Richard Goergen , Rohit Dev Gupta , Prashanth Pavithran , Manigandan Boopalan , Luca Della Chiesa
Abstract: The present technology provides minimal touch cable guides for rack-mounted devices. The minimal touch cable guides disclosed herein provide structures for routing cables from field replaceable units installed in a rack mounted device in such a way that cables of different types are not crossed and provides a mechanism for adjusting installed cabling to permit access to otherwise obscured field replaceable units. Such adjustment of cabling is provided in a controlled manner that does not impair the performance the installed cabling.
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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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19.发明公开公开(公告)号：US20240129250A1
公开(公告)日：2024-04-18
申请号：US17968071
申请日：2022-10-18
Applicant: Cisco Technology, Inc.
Inventor： Luca Della Chiesa , Christian Schmutzer , Raghupathi Somashekarappa
Abstract: A method is provided to compensate for differential delay among a plurality of paths between first and second nodes in a network. The method may involve measuring delay for each of the plurality of paths for a plurality of sub-flows transmitted between the first node and the second node on respective paths of the plurality of paths. The plurality of sub-flows are obtained by splitting a traffic flow. The method involves determining delay differences among the delay for each of the plurality of paths, and adjusting, based on the delay differences, a queue delay associated with a respective flow of the plurality of sub-flows on one or more of the plurality of paths to achieve a path delay that is equal to a target path delay for each of the plurality of paths.
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公开(公告)号：US20240070514A1
公开(公告)日：2024-02-29
申请号：US17898620
申请日：2022-08-30
Applicant: Cisco Technology, Inc.
Inventor： Louis Gwyn Samuel , Santanu Ganguly , Maria Gragera Garces , Luca Della Chiesa
CPC classification number: G06N10/80 , G06F12/023 , G06N10/20
Abstract: A quantum memory manager (QMM) of a source endpoint obtains a memory request from a quantum application for quantum memory blocks. The source endpoint negotiates with a destination endpoint to determine a memory lifetime value that includes a minimum decoherence time for qubits stored at the source endpoint and qubits stored at the destination endpoint. The QMM allocates a quantum memory block of a plurality of qubit storage locations to the quantum application based on the memory lifetime value. The QMM receives communication qubits that are entangled with destination qubits sent to the destination endpoint, and stores the communication qubits in the quantum memory block. Each particular communication qubit of the communication qubits is entangled with a particular destination qubit of the destination qubits.
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