公开(公告)号：US09549363B2

公开(公告)日：2017-01-17

申请号：US13945687

申请日：2013-07-18

Applicant: Cisco Technology, Inc.

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

IPC: H04W40/24 ,  H04W40/14 ,  H04L12/721 ,  H04L12/761 ,  H04L12/753 ,  H04W28/18 ,  H04W84/18

CPC classification number: H04W76/40 ,  H04L45/14 ,  H04L45/16 ,  H04L45/22 ,  H04L45/48 ,  H04W28/18 ,  H04W40/14 ,  H04W40/246 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/34

Abstract: In a multi-PHY, low power and lossy network comprising a plurality of nodes, a sender determines that a dwell time threshold limit for transmission of data will be exceeded by transmission of the data over a first network interface or that the recipient is unknown. The sender determines transmission parameters for the transmission of the data over the first network interface and transmits the transmission parameters to a receiver device over a second network interface that is different than the first network interface. The sender determines a channel on the first network interface for transmission of the data and transmits the determined channel with the transmission parameters to the receiver, or the receiver determines the channel on the first network interface for transmission of the data and transmits an indication of the determined channel to the sender in response to receiving the transmission parameters.

Abstract translation: 在包含多个节点的多PHY，低功率和有损网络中，发送方确定通过在第一网络接口上传输数据或者接收方未知的方式来超过数据传输的驻留时间阈值限制。 发送方确定通过第一网络接口传输数据的传输参数，并通过不同于第一网络接口的第二网络接口将传输参数发送到接收机设备。 发送方确定第一网络接口上的信道用于传输数据，并将具有传输参数的所确定的信道发送给接收机，或接收机确定第一网络接口上的信道用于传输数据，并发送 响应于接收到传输参数而将确定的信道发送给发送方。

公开(公告)号：US09479441B2

公开(公告)日：2016-10-25

申请号：US14156039

申请日：2014-01-15

Applicant: Cisco Technology, Inc.

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

IPC: G06F15/173 ,  H04L12/815

CPC classification number: H04L47/22

Abstract: In one embodiment, a plurality of time-based events is determined in a computer network. Messages are transmitted in the computer network in accordance with the plurality of time-based events. A transmission data rate of the transmitted messages is determined. Then, the transmission data rate is adjusted according to the plurality of time-based events.

Abstract translation: 在一个实施例中，在计算机网络中确定多个基于时间的事件。 根据多个基于时间的事件在计算机网络中发送消息。 确定发送的消息的传输数据速率。 然后，根据多个基于时间的事件来调整发送数据速率。

公开(公告)号：US09413643B2

公开(公告)日：2016-08-09

申请号：US14842240

申请日：2015-09-01

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/66 ,  H04L12/703 ,  H04L29/14 ,  H04L12/947 ,  H04L12/733 ,  H04L12/707 ,  H04L12/721 ,  H04L29/12 ,  H04L29/06

CPC classification number: H04L45/28 ,  H04L29/14 ,  H04L45/20 ,  H04L45/22 ,  H04L45/34 ,  H04L49/25 ,  H04L61/2592 ,  H04L69/22 ,  H04L2212/00

Abstract: In one embodiment, a device receives a destination unreachable message originated by a particular node along a first source route, the message carrying an encapsulated packet as received by the particular node. In response, the device may determine a failed link along the first source route based on a tunnel header and the particular node. Once determining an alternate source route without the failed link, the device may re-encapsulate and re-transmit the original packet on an alternate source route with a new tunnel header indicating the alternate source route (e.g., and a new hop limit count for the tunnel header and an adjusted hop limit count in the original packet).

公开(公告)号：US09385933B2

公开(公告)日：2016-07-05

申请号：US13926672

申请日：2013-06-25

Applicant: Cisco Technology, Inc.

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

IPC: H04J3/14 ,  H04L12/26 ,  H04L12/28 ,  H04J1/16

CPC classification number: H04L43/10

Abstract: In one embodiment, a targeted node in a computer network receives a probe generation request (PGR), and in response, generates a link-local multicast PGR (PGR-Local) carrying instructions for generating probes based on the PGR. The targeted node then transmits the PGR-Local to neighbors of the targeted node to cause one or more of the neighbors to generate and transmit probes to a collection device in the computer network according to the PGR-Local instructions. In another embodiment, a particular node in a computer network receives a link-local multicast probe generation request (PGR-Local) from a targeted node in the computer network, the targeted node having received the PGR-Local from a remote device, and determines how to generate probes based on instructions carried within the PGR-Local before sending one or more probes to a collection device in the computer network according to the PGR-Local instructions.

Abstract translation: 在一个实施例中，计算机网络中的目标节点接收探测生成请求（PGR），并且作为响应，生成携带用于基于PGR生成探测的指令的链路本地多播PGR（PGR-Local）。 目标节点然后将PGR-Local发送到目标节点的邻居，以使得一个或多个邻居根据PGR-Local指令在计算机网络中生成探测到发送设备。 在另一个实施例中，计算机网络中的特定节点从计算机网络中的目标节点接收链路本地多播探测生成请求（PGR-Local），目标节点已经从远程设备接收到PGR-Local，并且确定 根据PGR-Local指令，在将一个或多个探针发送到计算机网络中的收集设备之前，如何根据PGR-Local中携带的指令生成探测。

公开(公告)号：US20160156450A1

公开(公告)日：2016-06-02

申请号：US14867845

申请日：2015-09-28

Applicant: Cisco Technology, Inc.

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

IPC: H04L5/00 ,  H04L27/26 ,  H04J11/00

CPC classification number: H04L5/0064 ,  H04B3/54 ,  H04B2203/5416 ,  H04J11/00 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/0032 ,  H04L5/0033 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/0094 ,  H04L27/0006 ,  H04L27/2601 ,  H04W72/0453

Abstract: In one embodiment, a device maintains a predetermined number of high-priority subcarriers for use in communicating high-priority data frames and a predetermined number of low-priority subcarriers for use in communicating low-priority data frames. A data frame is received and a data frame priority is determined for the data frame. If the data frame is determined to be a low-priority data frame, a minimum number of subcarriers, from the low-priority subcarriers, required for communication of the data frame is determined and the data frame is communicated using the minimum number of subcarriers. If the data frame is determined to be a high-priority data frame, a maximum number of subcarriers available, including the high-priority subcarriers and the low-priority subcarriers, is determined and the data frame is communicated using the maximum number of subcarriers.

公开(公告)号：US20160134468A1

公开(公告)日：2016-05-12

申请号：US14549681

申请日：2014-11-21

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/24

CPC classification number: H04L45/02 ,  H04W40/32 ,  H04W84/12

Abstract: In one embodiment, a device identifies inter-personal area network (PAN) traffic between a first PAN and a second PAN. The device identifies a network node in the first PAN associated with the inter-PAN traffic and determines that the network node should join the second PAN. The device causes the network node to join the second PAN, in response to determining that the network node should join the second PAN.

Abstract translation: 在一个实施例中，设备识别在第一PAN和第二PAN之间的个人区域网络（PAN）业务。 设备识别与PAN间业务相关联的第一PAN中的网络节点，并确定网络节点应该加入第二PAN。 响应于确定网络节点应该加入第二PAN，该设备使网络节点加入第二PAN。

公开(公告)号：US20160105906A1

公开(公告)日：2016-04-14

申请号：US14969477

申请日：2015-12-15

Applicant: Cisco Technology, Inc.

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

IPC: H04W72/12 ,  H04B1/713 ,  H04L29/08 ,  H04W72/04 ,  H04W4/00

CPC classification number: H04W72/1263 ,  H04B1/713 ,  H04B1/7156 ,  H04L47/826 ,  H04L67/12 ,  H04L67/325 ,  H04W4/70 ,  H04W72/0446 ,  H04W84/18

Abstract: In one embodiment, a time at which a first device in a frequency-hopping communication network is expected to transmit a data message is determined. A first schedule is then generated based on the determined time, and the first schedule is overlaid on a frequency-hopping schedule for a second device in the network. The first schedule defines a first timeslot during which the second device listens for the data message, while the frequency-hopping schedule defines second timeslots during which the second device listens for data messages from other devices in the network. Notably, a duration of the first timeslot is greater than respective durations of the second timeslots.

Abstract translation: 在一个实施例中，确定跳频通信网络中的第一设备期望发送数据消息的时间。 然后基于所确定的时间生成第一调度，并且第一调度被叠加在网络中的第二设备的跳频调度上。 第一调度定义了第二设备在其中侦听数据消息的第一时隙，而跳频调度定义了第二时隙，在第二时隙期间，第二设备监听来自网络中的其他设备的数据消息。 值得注意的是，第一时隙的持续时间大于第二时隙的相应持续时间。

公开(公告)号：US09294488B2

公开(公告)日：2016-03-22

申请号：US14165415

申请日：2014-01-27

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Javier Cruz Mota ,  Andrea Di Pietro ,  Jonathan W. Hui

IPC: H04L29/06 ,  G06N99/00 ,  H04W12/12

CPC classification number: H04L63/1416 ,  G06N99/005 ,  H04K3/226 ,  H04K2203/18 ,  H04L63/1441 ,  H04L63/1458 ,  H04W12/12

Abstract: In one embodiment, a control loop control using a broadcast channel may be used to communicate with a node under attack. A management device may receive data indicating that one or more nodes in a computer network are under attack. The management device may then determine that one or more intermediate nodes are in proximity to the one or more nodes under attack, and communicate an attack-mitigation packet to the one or more nodes under attack by using the one or more intermediate nodes to relay the attack-mitigation packet to the one or more nodes under attack.

Abstract translation: 在一个实施例中，使用广播信道的控制环路控制可以用于与被攻击的节点进行通信。 管理设备可以接收指示计算机网络中的一个或多个节点受到攻击的数据。 然后，管理设备可以确定一个或多个中间节点处于受攻击的一个或多个节点附近，并且通过使用一个或多个中间节点将攻击缓解分组传送给被攻击的一个或多个节点，以将中继节点中继 攻击缓解包到被攻击的一个或多个节点。

公开(公告)号：US20160021018A1

公开(公告)日：2016-01-21

申请号：US14576873

申请日：2014-12-19

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/863 ,  H04L12/721

CPC classification number: H04L45/38 ,  H04L45/18 ,  H04L45/22 ,  H04L45/24 ,  H04L45/48 ,  H04L47/31 ,  H04L47/34 ,  H04L47/41 ,  H04L47/624

Abstract: In one embodiment, a device in a network determines that a particular packet flow in the network is sensitive to packet reordering. The device determines whether a particular packet of the packet flow is to be routed differently than an immediately prior packet in the packet flow, in response to determining that the particular packet flow is sensitive to reordering. The device marks the particular packet as taking a different route than the immediately prior packet in the packet flow, prior to forwarding the marked packet and in response to determining that the particular packet is to be routed differently than the immediately prior packet in the packet flow.

Abstract translation: 在一个实施例中，网络中的设备确定网络中的特定分组流对分组重新排序敏感。 响应于确定特定分组流对重新排序敏感，该设备确定分组流的特定分组是否将与分组流中紧邻的分组不同地路由。 在转发标记的分组之前，并且响应于确定特定分组将不同于分组流中的紧接在前的分组的路由，该设备将特定分组标记为采用与分组流中的紧接在前的分组不同的路由 。

公开(公告)号：US20160021013A1

公开(公告)日：2016-01-21

申请号：US14576697

申请日：2014-12-19

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui

IPC: H04L12/815 ,  H04L12/801 ,  H04L12/813

CPC classification number: H04L47/22 ,  H04L41/0677 ,  H04L45/22 ,  H04L45/28 ,  H04L47/18 ,  H04L47/20 ,  H04L47/24 ,  H04W40/10 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/326

Abstract: In one embodiment, a device in a network detects a power outage event. The device monitors one or more operational properties of the device, in response to detecting the power outage event. The device determines whether to initiate a traffic control mechanism based on the one or more monitored operational properties of the device, according to a power outage traffic control policy. The device causes one or more nodes in the network that send traffic to the device to regulate the traffic sent to the device, in response to a determination that the traffic control mechanism should be initiated.

Abstract translation: 在一个实施例中，网络中的设备检测停电事件。 响应于检测到停电事件，设备监视设备的一个或多个操作属性。 根据停电流量控制策略，设备基于设备的一个或多个监控的操作属性来确定是否启动流量控制机制。 响应于应该启动流量控制机制，该设备使得网络中的一个或多个节点向设备发送流量以调节发送到设备的流量。