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公开(公告)号：US20200067660A1
公开(公告)日：2020-02-27
申请号：US16667958
申请日：2019-10-30
Applicant: Cisco Technology, Inc.
Inventor： Stefan Langenbach , Gilberto Loprieno , Alessandro Cavaciuti
Abstract: In one embodiment an apparatus, method, and system is described, the embodiment an apparatus, method including receiving a stream of data frames at an input interface, the data frames one of including security frames, or being included in security frames, wherein the security frames include payload data, performing forward error correction on the data frames a forward error correction (FEC) decoder, buffering received data frames at a buffer and blanker engine and building a complete security frame of the received data frames, determining whether or not to suppress taking a consequent action based on a frequency of authentication errors at an authentication engine, wherein the consequent action to be taken or suppressed, when taken, is taken upon payload data of one or more security frames including a data frame upon which an authentication error occurred. Related apparatus, methods and systems are also described.
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公开(公告)号：US20180034590A1
公开(公告)日：2018-02-01
申请号：US15727991
申请日：2017-10-09
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Davide Codella
IPC: H04L1/00 , H04B10/077 , H04J3/00 , H04L1/20
CPC classification number: H04L1/0063 , H04B10/0775 , H04B2210/072 , H04J3/00 , H04J3/14 , H04J2203/0071 , H04L1/0057 , H04L1/20 , H04L1/201
Abstract: An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.
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公开(公告)号：US20170230338A1
公开(公告)日：2017-08-10
申请号：US15015548
申请日：2016-02-04
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Davide Codella
IPC: H04L29/06
CPC classification number: H04L63/0428 , H04L9/06 , H04L9/065 , H04L63/04 , H04L63/0442 , H04L63/126
Abstract: At a source network device, data is compiled into a plurality of data blocks for transmission in a data frame over a network to a destination network device. The plurality of data blocks are arranged into a plurality of data block groups such that each data block group comprises a predetermined number of data blocks. Encryption information is generated for each of the plurality of data blocks groups. The encryption information identifies an encryption key for each of the plurality of data block groups. Overhead data configured to allow the destination network device to align and decode the data frame is generated. The data frame is transmitted from the source network device to the destination network device such that the encryption information for each of the plurality of data block groups is transmitted consecutively with a respective data block group, and a portion of the overhead data is transmitted prior to each consecutive transmission of encryption information with a data block group.
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公开(公告)号：US20160285547A1
公开(公告)日：2016-09-29
申请号：US14669079
申请日：2015-03-26
Applicant: CISCO TECHNOLOGY, INC.
Inventor： Gilberto Loprieno , Davide Codella
IPC: H04B10/079 , H04L1/00 , H04L1/20
CPC classification number: H04L1/0063 , H04B10/0775 , H04B2210/072 , H04J3/00 , H04J3/14 , H04J2203/0071 , H04L1/0057 , H04L1/20 , H04L1/201
Abstract: An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.
Abstract translation: 光学帧通过光网络内的光链路被接收。 光学帧包含聚合数据的有效载荷，对准值和比特交织奇偶校验值。 基于对准值对准光学框架的内容。 监视位交织奇偶校验值。 响应于监视，确定传输链路的传输质量。
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公开(公告)号：US20250070989A1
公开(公告)日：2025-02-27
申请号：US18454416
申请日：2023-08-23
Applicant: Cisco Technology, Inc.
Inventor： Scott Roy Fluhrer , Gilberto Loprieno
Abstract: In one example embodiment, data is received at a node of a network. The data includes encrypted data segments containing data portions and error correction information. The encrypted data segments are decrypted to produce the data portions and the error correction information. Error correction is performed on the data portions using the error correction information. Corrupt data is determined based on the error correction indicating uncorrectable data.
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Patent Agency Ranking
公开(公告)号：US11258537B2
公开(公告)日：2022-02-22
申请号：US17101083
申请日：2020-11-23
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Stefan Langenbach
Abstract: A first device receives a first container frame having a payload of a first length. The payload of the container frame includes multiple optical transport unit (OTU) frames, each of which includes an optical data unit (ODU) frame and a sequence of forward error correction (FEC) bits for the ODU frame. Each OTU frame is associated with a first sequence of error-identifying bits. The first device determines, for each OTU frame, a second sequence of error-identifying bits, and forms a second container frame including the OTU frames, the first sequences of error-identifying bits, and the second sequences of error-identifying bits. The first device transmits the second container frame to a second device.
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公开(公告)号：US10985847B2
公开(公告)日：2021-04-20
申请号：US15849959
申请日：2017-12-21
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Scott Roy Fluhrer , Emanuele Umberto Giacometti
Abstract: A method divides data traffic into multiple optical transport units formatted according to an optical transport network (OTN) standard. The multiple optical transport units include a master optical network unit and one or more slave optical network units. Each optical network unit includes overhead and a payload. The overhead includes used overhead specifically defined in the OTN standard and unused overhead not specifically defined in the OTN standard. The method encrypts each optical network unit with a respective one of multiple encryption keys, defines security control parameters identifying the multiple encryption keys, and inserts the security control parameters into the unused overhead of a first slave optical network unit among the one or more slave optical network units. The method transmits the optical network units in encrypted form.
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公开(公告)号：US10454617B2
公开(公告)日：2019-10-22
申请号：US15727991
申请日：2017-10-09
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Davide Codella
IPC: H04L1/00 , H04L1/20 , H04B10/077 , H04J3/00
Abstract: An optical frame is received over an optical link within an optical network. The optical frame contains a payload of aggregated data, an alignment value, and a bit interleaved parity value. The content of the optical frame is aligned based on the alignment value. The bit interleaved parity value is monitored. In response to the monitoring, a transmission quality of the transmission link is determined.
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公开(公告)号：US10404402B2
公开(公告)日：2019-09-03
申请号：US15712385
申请日：2017-09-22
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Emanuele Umberto Giacometti , Davide Codella
Abstract: A method generates, from an input data stream, multiple lanes of a physical coding sublayer (PCS) signal. The method converts the data stream to a sequence of bit blocks, and periodically inserts into the sequence of bit blocks an alignment marker (AM) group including multiple individual alignment markers for respective ones of the multiple lanes. The method adds security protection to each bit block according to a security protocol to produce a sequence of protected bit blocks, and modifies each AM group with security information to be used by the security protocol to remove the security protection added to the sequence of protected bit blocks. The method applies forward error correction to the sequence of protected bit blocks and the modified AM groups to produce forward error correction codewords, and produces the multiple lanes from the codewords. The method transmits the multiple lanes over an optical link.
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公开(公告)号：US08942379B2
公开(公告)日：2015-01-27
申请号：US13653521
申请日：2012-10-17
Applicant: Cisco Technology, Inc.
Inventor： Gilberto Loprieno , Giacomo Losio
CPC classification number: H04L9/3297 , H04L9/3226 , H04L63/0428 , H04L63/083 , H04L63/123
Abstract: An Optical Transport Network (OTN) frame comprises an optical channel payload unit that is divided into a plurality of timeslots. This OTN frame is received at a transmitter and the timeslots are grouped into blocks of timeslots. Two or more blocks of timeslots are selected for encryption and are encrypted/authenticated in parallel to generate an encrypted OTN frame in which only certain blocks of timeslots are encrypted.
Abstract translation: 光传输网络（OTN）帧包括被分成多个时隙的光信道有效载荷单元。 该OTN帧在发射机处被接收，时隙被分组成时隙块。 选择两个或更多个时隙块进行加密，并且并行加密/认证，以生成加密的OTN帧，其中仅某些时隙块被加密。
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