公开(公告)号：US20150195184A1

公开(公告)日：2015-07-09

申请号：US14164544

申请日：2014-01-27

Applicant: CISCO TECHNOLOGY, INC.

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

IPC: H04L12/751 ,  G06N99/00

CPC classification number: H04L41/5025 ,  H04L41/12 ,  H04L43/0852 ,  H04L45/02 ,  H04L45/70 ,  H04L47/122 ,  H04L47/365 ,  H04W24/02 ,  H04W24/04 ,  Y04S40/164

Abstract: In one embodiment, a routing topology of a network including nodes interconnected by communication links is determined. Important nodes in the network which are of relative importance are determined based on their location in the determined routing topology. Also, one or more request messages are sent causing the important nodes to gather local network metrics. Then, in response to the one or more request messages, one or more response messages including the network metrics gathered by each important node are received.

Abstract translation: 在一个实施例中，确定包括由通信链路互连的节点的网络的路由拓扑。 基于其在确定的路由拓扑中的位置来确定网络中具有相对重要性的重要节点。 此外，发送一个或多个请求消息，导致重要节点收集本地网络度量。 然后，响应于一个或多个请求消息，接收包括由每个重要节点收集的网络度量的一个或多个响应消息。

公开(公告)号：US20150188801A1

公开(公告)日：2015-07-02

申请号：US14163316

申请日：2014-01-24

Applicant: CISCO TECHNOLOGY, INC.

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

IPC: H04L12/721 ,  H04L12/24

CPC classification number: H04L45/14 ,  H04L41/0681 ,  H04L41/0686 ,  H04L41/0816 ,  H04L41/0886 ,  H04L41/12 ,  H04L41/147 ,  H04L41/16 ,  H04L41/18 ,  H04L41/30 ,  H04L43/0811 ,  H04L45/026 ,  H04L45/08 ,  H04L45/28 ,  H04L45/48

Abstract: In one embodiment, a device determines a topological profile of individual nodes in a shared-media communication network, and also determines a respective likelihood of the nodes in the network to become a root of a floating topology based on the topological profiles. Accordingly, the device may provide instructions to particular nodes in the network based on the respective likelihoods.

Abstract translation: 在一个实施例中，设备确定共享 - 媒体通信网络中各个节点的拓扑概况，并且还基于拓扑概况确定网络中的节点的相应可能性成为浮动拓扑的根。 因此，设备可以基于各自的可能性向网络中的特定节点提供指令。

公开(公告)号：US20150188751A1

公开(公告)日：2015-07-02

申请号：US14163488

申请日：2014-01-24

Applicant: CISCO TECHNOLOGY, INC.

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

IPC: H04L12/24 ,  H04L12/26

CPC classification number: H04L41/0618 ,  H04L41/06 ,  H04L41/0604 ,  H04L41/0613 ,  H04L41/16 ,  H04L43/50 ,  Y02B60/33

Abstract: In one embodiment, a device (e.g., learning machine) determines a plurality of fate-sharing group (FSG) nodes in a computer network that are prone to simultaneously send an alarm upon detecting an event. As such, the device may elect one or more FSG owner nodes as a subset of the FSG nodes, and instructs the FSG group such that only FSG owner nodes send an alarm upon event detection.

Abstract translation: 在一个实施例中，设备（例如，学习机器）确定计算机网络中在检测到事件时容易同时发送警报的多个命运共享组（FSG）节点。 因此，设备可以选择一个或多个FSG所有者节点作为FSG节点的子集，并指示FSG组，使得只有FSG所有者节点在事件检测时发送报警。

公开(公告)号：US20150043519A1

公开(公告)日：2015-02-12

申请号：US13960663

申请日：2013-08-06

Applicant: Cisco Technology, Inc.

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

IPC: H04W72/04 ,  H04W84/18

CPC classification number: H04B1/7143 ,  H04B1/713 ,  H04L7/027 ,  H04W72/0446 ,  H04W72/0453 ,  H04W84/18

Abstract: In a multiple interface, low power and lossy network comprising a plurality of nodes, a low transmission power and medium transmission power topology are defined for the network and a channel-hopping schedule is defined for the devices operating in each topology. A sender determines that data is capable of being transmitted via a link on the low transmission power topology. The sender determines the transmission parameters for the transmission of the data over the link on the low transmission power topology and determines a low transmission power channel for transmission of the data. The sender transmits the determined channel and the transmission parameters to the receiver. The sender transmits the data via the determined channel in the low transmission power topology.

Abstract translation: 在包括多个节点的多接口，低功率和有损网络中，针对网络定义了低发射功率和中等传输功率拓扑，并为每个拓扑中运行的设备定义了跳频调度。 发送方确定数据能够通过低传输功率拓扑上的链路传输。 发送方确定通过低传输功率拓扑上的链路传输数据的传输参数，并确定用于传输数据的低传输功率信道。 发送方将确定的信道和传输参数发送到接收机。 发送方通过低传输功率拓扑中的确定信道发送数据。

公开(公告)号：US08954582B2

公开(公告)日：2015-02-10

申请号：US14154875

申请日：2014-01-14

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui

IPC: H04L12/26 ,  G06F11/20 ,  H04W40/34 ,  H04L12/707 ,  H04L12/703 ,  H04L12/24 ,  H04L12/721

CPC classification number: H04L43/04 ,  G06F11/2002 ,  H04L41/145 ,  H04L45/14 ,  H04L45/22 ,  H04L45/28 ,  H04W40/34

Abstract: In one embodiment, a management device receives one or more fate-sharing reports locally generated by one or more corresponding reporting nodes in a shared-media communication network, the fate-sharing reports indicating a degree of localized fate-sharing between one or more pairs of nodes local to the corresponding reporting nodes. The management device may then determine, globally from aggregating the fate-sharing reports, one or more fate-sharing groups indicating sets of nodes having a global degree of fate-sharing within the communication network. As such, the management device may then advertise the fate-sharing groups within the communication network, wherein nodes of the communication network are configured to select a plurality of next-hops that minimizes fate-sharing between the plurality of next-hops.

Abstract translation: 在一个实施例中，管理设备接收在共享 - 媒体通信网络中由一个或多个对应的报告节点本地生成的一个或多个命运共享报告，命运共享报告指示一个或多个对之间的局部化命运共享程度 的节点本地到相应的报告节点。 然后，管理设备可以全局地从聚合命运共享报告中确定一个或多个命运共享组，指示在通信网络内具有全局命中共享度的节点集合。 这样，管理装置然后可以通告通信网络内的命运共享组，其中通信网络的节点被配置为选择使多个下一跳之间的命运共享最小化的多个下一跳。

公开(公告)号：US20150026268A1

公开(公告)日：2015-01-22

申请号：US13945886

申请日：2013-07-18

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/58

CPC classification number: H04L51/18 ,  H04L51/38

Abstract: Utilizing multiple network interfaces when sending data and acknowledgement packages comprises, in a low power and lossy network (LLN) or other network, a sender device comprises two or more network interfaces for communicating with one or more recipient devices. The sender device assesses the transmission capabilities of the network interfaces to determine data rates available for each interface. The sender device specifies which network interface will be used to transfer data and which network interface will be used to receive an acknowledgement from the recipient device. The sender device selects the network interface with the larger data capacity for transmitting a data packet and the network interface with the smaller data capacity for receiving an acknowledgement. The data transmission and the acknowledgement transmission may be transmitted simultaneously. The recipient device uses transmission parameters received from the sender device to determine the data rate with which to transmit the acknowledgement.

Abstract translation: 发送数据和确认包时，利用多个网络接口包括在低功率和有损网络（LLN）或其他网络中，发送器设备包括用于与一个或多个接收设备进行通信的两个或多个网络接口。 发送方设备评估网络接口的传输能力，以确定每个接口可用的数据速率。 发送方设备指定将使用哪个网络接口传输数据，哪个网络接口将用于从接收方设备接收确认。 发送方设备选择具有较大数据容量的网络接口，用于发送数据包和数据容量较小的网络接口，用于接收确认。 可以同时发送数据传输和确认传输。 收件人设备使用从发送者设备接收的传输参数来确定用于传送确认的数据速率。

公开(公告)号：US20140379896A1

公开(公告)日：2014-12-25

申请号：US13924834

申请日：2013-06-24

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/26

CPC classification number: H04L43/0811 ,  H04L43/0805 ,  Y04S40/168

Abstract: In one embodiment, liveness reporting is performed using a distributed approach. The embodiments include a management node that is configured to receive a message containing an indication of activity or inactivity of one or more subject nodes, and determine which of the one or more subject nodes are active based on the received message. The indication is derived from one or more observer nodes observing network traffic of the one or more subject nodes. The embodiments further include one or more observer nodes configured to observe network traffic of the one or more subject nodes in the network, generate the message containing the indication of activity or inactivity of the one or more subject nodes, and transmit the message to the management node.

Abstract translation: 在一个实施例中，使用分布式方法执行活动报告。 实施例包括管理节点，其被配置为接收包含一个或多个主题节点的活动或不活动指示的消息，并且基于接收到的消息来确定一个或多个主题节点中的哪一个是活动的。 该指示是从观察一个或多个主题节点的网络流量的一个或多个观察者节点导出的。 实施例还包括被配置为观察网络中的一个或多个主题节点的网络业务的一个或多个观察者节点，生成包含一个或多个主题节点的活动或不活动指示的消息，并将消息发送到管理 节点。

公开(公告)号：US20140376427A1

公开(公告)日：2014-12-25

申请号：US13921651

申请日：2013-06-19

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Jean-Philippe Vasseur

IPC: H04L29/06 ,  H04L5/16

CPC classification number: H04L69/04 ,  H04L5/16 ,  H04L47/24 ,  H04L47/245 ,  H04L47/365

Abstract: In one embodiment, a sender in a shared-communication network determines whether a pending frame is low-latency or high-throughput, and sets a maximum transmission unit (MTU) of the pending frame as a first MTU in response to a low-latency frame and a longer second MTU in response to a high-throughput frame. In another embodiment, a receiver receives a data frame from a sender according to an MTU, and determines a trigger for adjusting the MTU based on latency requirements. In response to the trigger, the receiver sets an interrupt flag in a link-layer acknowledgment for the received data frame. In still another embodiment, a sender determines a pending low-latency data frame to send to a receiver operating according to an MTU, and sends a control message to the receiver to indicate the pending low-latency data frame and an adjusted MTU.

Abstract translation: 在一个实施例中，共享通信网络中的发送者确定等待帧是低延迟还是高吞吐量，并且将等待帧的最大传输单元（MTU）设置为响应于低延迟的第一MTU 帧和较长的第二MTU响应于高通量帧。 在另一个实施例中，接收机根据MTU从发送器接收数据帧，并且基于等待时间要求确定用于调整MTU的触发。 响应于触发，接收器在接收的数据帧的链路层确认中设置中断标志。 在另一个实施例中，发送方确定等待的低等待时间数据帧以发送到根据MTU操作的接收机，并且向接收机发送控制消息以指示等待的低等待时间数据帧和经调整的MTU。

公开(公告)号：US20140376361A1

公开(公告)日：2014-12-25

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

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：US08908536B2

公开(公告)日：2014-12-09

申请号：US13631452

申请日：2012-09-28

Applicant: Cisco Technology, Inc.

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

IPC: H04L1/00 ,  H04L12/18

CPC classification number: H04L12/18 ,  H04B1/713 ,  H04L12/1895 ,  H04L67/32 ,  H04W4/06

Abstract: In one embodiment, a node may discover the density of neighboring nodes in a frequency-hopping communication network. In response to identifying a power outage condition, the node may also dynamically determine an initial power outage notification (PON) transmission protocol based on the density of neighboring nodes. The node may then communicate a first PON to a plurality of neighboring nodes according to the initial PON transmission protocol.

Abstract translation: 在一个实施例中，节点可以在跳频通信网络中发现相邻节点的密度。 响应于识别停电状况，节点还可以基于相邻节点的密度动态地确定初始断电通知（PON）传输协议。 然后，节点可以根据初始PON传输协议将第一PON传送到多个相邻节点。