公开(公告)号：US20160134539A1

公开(公告)日：2016-05-12

申请号：US14576491

申请日：2014-12-19

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Jean-Philippe Vasseur ,  Wei Hong

IPC: H04L12/801 ,  H04L29/06 ,  H04L12/18 ,  H04L12/26

CPC classification number: H04L47/12 ,  H04L12/18 ,  H04L12/1881 ,  H04L41/0816 ,  H04L43/062 ,  H04L43/08 ,  H04L43/0811 ,  H04L43/0852 ,  H04L43/0894 ,  H04L43/16 ,  H04L65/1069 ,  H04L65/4076 ,  H04W8/005 ,  H04W40/246 ,  H04W84/20 ,  Y04S40/162 ,  Y04S40/168

Abstract: In one embodiment, a device in a network identifies an upcoming network formation event. The device instructs one or more nodes in the network to use a network formation broadcast schedule during the event. The device determines that a degree of functionality in the network during the event exceeds a threshold amount. The device instructs the one or more nodes to use a normal broadcast schedule, in response to determining that the degree of functionality in the network during the event exceeds the threshold amount. Channels of the network formation broadcast schedule are active more frequently than channels of the normal broadcast schedule when in use.

Abstract translation: 在一个实施例中，网络中的设备识别即将到来的网络形成事件。 该设备指示网络中的一个或多个节点在事件期间使用网络形成广播时间表。 设备确定事件期间网络中的功能程度超过阈值量。 响应于确定事件期间网络中的功能度超过阈值量，该设备指示一个或多个节点使用正常广播调度。 当使用时，网络形成广播节目的频道比正常广播节目的频道更频繁地活动。

公开(公告)号：US09332072B2

公开(公告)日：2016-05-03

申请号：US14184820

申请日：2014-02-20

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong

IPC: G06F15/16 ,  H04L29/08 ,  H02J13/00 ,  G06F1/12

CPC classification number: H04L67/1095 ,  G06F1/12 ,  H02J3/14 ,  H02J3/40 ,  H02J13/0093 ,  H02J2003/143 ,  H04L67/12 ,  Y02B70/3225 ,  Y02B70/3266 ,  Y04S20/222 ,  Y04S20/242

Abstract: In one embodiment, an alternating circuit (AC) power connected node in a shared-media communication network (with knowledge of a current time) determines a time value of a particular zero-crossing event of the AC power, and sends a message to a neighbor node indicating the time value of the particular zero-crossing event to allow the neighbor node to synchronize its time by coordinating the time value to its detection of the particular zero-crossing event. In another embodiment, the neighboring node determines one or more local zero-crossing events of the AC power, such that upon receiving the message indicating a correct time value of the particular zero-crossing event, the neighboring node can synchronize its local time a current time by matching one of the one or more local zero-crossing events to the particular zero-crossing event and assigning the correct time value to the matched local zero-crossing event.

Abstract translation: 在一个实施例中，共享媒体通信网络中的交流电（AC）功率连接节点（具有当前时间的知识）确定AC功率的特定过零事件的时间值，并且向 邻居节点指示特定过零事件的时间值，以允许邻居节点通过协调时间值与其对特定过零事件的检测来同步其时间。 在另一个实施例中，相邻节点确定AC功率的一个或多个局部过零事件，使得在接收到指示特定过零事件的正确时间值的消息时，相邻节点可以使其本地时间同步电流 通过将一个或多个局部过零事件中的一个匹配到特定过零事件并将正确的时间值分配给匹配的局部过零事件来实现。

公开(公告)号：US09225589B2

公开(公告)日：2015-12-29

申请号：US13921748

申请日：2013-06-19

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/24 ,  H04B1/715 ,  H04W40/12

CPC classification number: H04L41/0654 ,  H04B1/715 ,  H04L45/22 ,  H04L45/28 ,  H04W40/12

Abstract: In one embodiment, a primary node in a shared-media communication network is selected by a node toward a destination. In response to determining the primary node, the node determines a frequency-hopping schedule of the primary node. One or more backup nodes for the primary nodes are then determined based on a frequency-hopping schedule diversity between the primary node and the one or more backup nodes.

Abstract translation: 在一个实施例中，共享媒体通信网络中的主节点被节点选择到目的地。 响应于确定主节点，节点确定主节点的跳频调度。 然后，基于主节点和一个或多个备份节点之间的跳频调度分集来确定主节点的一个或多个备份节点。

公开(公告)号：US20150365238A1

公开(公告)日：2015-12-17

申请号：US14303122

申请日：2014-06-12

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Raja Rajaram Kannan ,  Wei Hong

IPC: H04L9/32

CPC classification number: H04L9/3247 ,  H04L9/321 ,  H04L9/3252 ,  H04L9/3263 ,  H04L9/3297 ,  Y04S40/24

Abstract: Presented herein are techniques for securely configuring or managing devices in a variety of geographic locations. At a device manager for a device, a first public key of a first public-private key pair is presented to a network management system as part of a request for one or more work orders. The work order, generated and signed by the network management system using a second private key of a second public-private key pair, includes the first public key, and is received by the device manager. The signed work order is provided to the endpoint device for validation of the signed work order using a second public key, and all subsequent communications from the device manager to the endpoint device are sent such that the communications are signed with the first private key. In some embodiments, each work order is valid for a specified amount of time.

Abstract translation: 这里提出了用于在各种地理位置中安全地配置或管理设备的技术。 在设备的设备管理器中，作为对一个或多个工作单的请求的一部分，第一公钥 - 私钥对的第一公钥被呈现给网络管理系统。 由网络管理系统使用第二公钥 - 私钥对的第二私钥生成和签名的工单包括第一公钥，并由设备管理器接收。 所签署的工单被提供给端点设备，以使用第二公钥验证签署的工单，并且发送从设备管理器到端点设备的所有后续通信，使得通信与第一私钥签名。 在一些实施例中，每个工单在指定的时间量内是有效的。

公开(公告)号：US20150327260A1

公开(公告)日：2015-11-12

申请号：US14270972

申请日：2014-05-06

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04W72/04 ,  H04B1/7143 ,  H04L1/00

CPC classification number: H04W72/0446 ,  H04B1/7143 ,  H04L1/0002 ,  H04L1/0017 ,  H04L1/04 ,  H04L47/14

Abstract: In one embodiment, a plurality of data rates available for communication is identified at a first device in a network. Slots of a channel hopping schedule are also identified and the data rates are assigned to the slots of the channel hopping schedule to generate a data rate hopping schedule. The generated data rate hopping schedule is further provided to a second device in the network.

Abstract translation: 在一个实施例中，在网络中的第一设备处识别可用于通信的多个数据速率。 还标识了信道跳频调度的时隙，并且将数据速率分配给信道跳频调度的时隙以生成数据速率跳频调度。 生成的数据速率跳频调度进一步提供给网络中的第二设备。

公开(公告)号：US20150318892A1

公开(公告)日：2015-11-05

申请号：US14267445

申请日：2014-05-01

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Jean-Philippe Vasseur ,  Wei Hong

IPC: H04B3/32 ,  H04B3/54

CPC classification number: H04B3/32 ,  H04B3/487 ,  H04B3/54 ,  H04B2203/5425 ,  H04B2203/5466 ,  H04L45/123 ,  H04W40/16 ,  Y02D70/00 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/34

Abstract: In one embodiment, a node in a network receives communication channel data regarding one or more communication channels available between a particular device in the network and a neighboring device. Each communication channel corresponds to one or more electrical phases over which the particular device can communicate with the neighboring device. The node also receives crosstalk data regarding an amount of crosstalk between the electrical phases over which the particular device can communicate with the neighboring device. The node then generates a routing path for the network based on the received crosstalk and communication channel data.

Abstract translation: 在一个实施例中，网络中的节点接收关于网络中的特定设备与相邻设备之间可用的一个或多个通信信道的通信信道数据。 每个通信信道对应于一个或多个电相位，特定设备可通过该相位与相邻设备进行通信。 节点还接收关于特定设备可以在其间与相邻设备通信的电相之间的串扰量的串扰数据。 然后，该节点基于接收的串扰和通信信道数据生成网络的路由路径。

公开(公告)号：US20150237130A1

公开(公告)日：2015-08-20

申请号：US14184820

申请日：2014-02-20

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong

IPC: H04L29/08 ,  G06F1/12 ,  H02J13/00

CPC classification number: H04L67/1095 ,  G06F1/12 ,  H02J3/14 ,  H02J3/40 ,  H02J13/0093 ,  H02J2003/143 ,  H04L67/12 ,  Y02B70/3225 ,  Y02B70/3266 ,  Y04S20/222 ,  Y04S20/242

Abstract: In one embodiment, an alternating circuit (AC) power connected node in a shared-media communication network (with knowledge of a current time) determines a time value of a particular zero-crossing event of the AC power, and sends a message to a neighbor node indicating the time value of the particular zero-crossing event to allow the neighbor node to synchronize its time by coordinating the time value to its detection of the particular zero-crossing event. In another embodiment, the neighboring node determines one or more local zero-crossing events of the AC power, such that upon receiving the message indicating a correct time value of the particular zero-crossing event, the neighboring node can synchronize its local time a current time by matching one of the one or more local zero-crossing events to the particular zero-crossing event and assigning the correct time value to the matched local zero-crossing event.

Abstract translation: 在一个实施例中，共享媒体通信网络中的交流电（AC）功率连接节点（具有当前时间的知识）确定AC功率的特定过零事件的时间值，并且向 邻居节点指示特定过零事件的时间值，以允许邻居节点通过协调时间值与其对特定过零事件的检测来同步其时间。 在另一个实施例中，相邻节点确定AC功率的一个或多个局部过零事件，使得在接收到指示特定过零事件的正确时间值的消息时，相邻节点可以使其本地时间同步电流 通过将一个或多个局部过零事件中的一个匹配到特定过零事件并将正确的时间值分配给匹配的局部过零事件来实现。

公开(公告)号：US20150207725A1

公开(公告)日：2015-07-23

申请号：US13920758

申请日：2013-06-18

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/761 ,  H04L12/18 ,  H04W72/00

CPC classification number: H04L65/4076 ,  H04L1/00 ,  H04L12/1863 ,  H04L12/189 ,  H04L45/16 ,  H04W28/06 ,  H04W72/005 ,  H04W72/02

Abstract: In one embodiment, a multicast communication is received at a particular node of a plurality of nodes receiving the multicast communication in a network. The particular node selects a subset of subcarriers using a probabilistic data structure, such that each of the plurality of nodes selects a respective subset of subcarriers using the probabilistic data structure. The particular node transmits an acknowledgement of receipt of the multicast communication on the subset of subcarriers selected by the particular node. The transmission occurs simultaneously with transmissions of acknowledgements from the other of the plurality of nodes.

Abstract translation: 在一个实施例中，在网络中接收多播通信的多个节点的特定节点处接收多播通信。 特定节点使用概率数据结构选择子载波子集，使得多个节点中的每一个节点使用概率数据结构来选择子载波的相应子集。 特定节点在由特定节点选择的子载波子集上发送接收到多播通信的确认。 传输与来自多个节点中的另一个的确认的发送同时发生。

公开(公告)号：US20150200714A1

公开(公告)日：2015-07-16

申请号：US14155902

申请日：2014-01-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04B3/54

CPC classification number: H04B3/544

Abstract: In one embodiment, a device receives connected phase data from a neighboring device indicative of one or more electrical phases to which the neighboring device is connected. A determination is made, based on the connected phase data for the neighboring device, whether to transmit the message to the neighboring device over a single electrical phase at a higher output power or over a plurality of electrical phases at a lower output power. The message is then transmitted to the neighboring device over the determined one or more electrical phases.

Abstract translation: 在一个实施例中，设备从相邻设备接收指示相邻设备所连接的一个或多个电相的连接的相位数据。 基于相邻设备的连接的相位数据，确定是以较高的输出功率还是通过多个电相位以较低的输出功率将消息发送到相邻设备的单个电相位。 然后，通过确定的一个或多个电相位将该消息发送到相邻设备。

公开(公告)号：US20150195176A1

公开(公告)日：2015-07-09

申请号：US14165450

申请日：2014-01-27

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Grégory Mermoud ,  Jonathan W. Hui ,  Sukrit Dasgupta

IPC: H04L12/26 ,  G06N99/00

CPC classification number: H04L43/12 ,  H04L41/16 ,  H04L43/08 ,  Y04S40/168

Abstract: In one embodiment, a learning machine may be used to select observer nodes in a LLN such that the liveness of one or more nodes of interest may be monitored indirectly. In particular, a management device may receive network data on one or more network traffic parameters of a computer network. The management device may then determine, based on the network data, a candidate list of potential observer nodes to monitor activity or inactivity of one or more subject nodes. The management device may then dynamically select, using a machine learning model, a set of optimized observer nodes from the candidate list of potential observer nodes.

Abstract translation: 在一个实施例中，可以使用学习机器来选择LLN中的观察者节点，使得可以间接地监视感兴趣的一个或多个节点的活动性。 具体地，管理设备可以接收计算机网络的一个或多个网络业务参数上的网络数据。 然后，管理设备可以基于网络数据来确定潜在观察者节点的候选列表，以监视一个或多个主题节点的活动或不活动。 然后，管理设备可以使用机器学习模型从潜在的观察者节点的候选列表中动态地选择一组优化的观察者节点。