公开(公告)号：US20160021010A1

公开(公告)日：2016-01-21

申请号：US14565693

申请日：2014-12-10

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui

IPC: H04L12/803 ,  H04L12/28 ,  H04L12/721 ,  H04L12/715

CPC classification number: H04L45/04 ,  H04L45/38 ,  H04L45/44

Abstract: In one embodiment, a device in a network identifies a routing domain migration candidate node in a first routing domain that is in range of a second routing domain. The device determines that the second routing domain is able to accommodate the candidate node sending traffic via the second routing domain. The device determines that the candidate node should send traffic via the second routing domain, based in part on a determination that the second routing domain is able to accommodate the candidate node sending traffic via the second routing domain. The device causes the candidate node to send traffic via the second routing domain.

Abstract translation: 在一个实施例中，网络中的设备标识位于第二路由域范围内的第一路由域中的路由域迁移候选节点。 设备确定第二路由域能够容纳通过第二路由域发送业务的候选节点。 部分地基于第二路由域能够容纳候选节点经由第二路由域发送业务的确定，该设备确定候选节点应经由第二路由域发送业务。 该设备使得候选节点经由第二路由域发送业务。

公开(公告)号：US09236904B2

公开(公告)日：2016-01-12

申请号：US13669243

申请日：2012-11-05

Applicant: Cisco Technology, Inc.

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

IPC: H04B1/00 ,  H04B1/7156 ,  H04W56/00

CPC classification number: H04B1/7156 ,  H04W56/001

Abstract: In one embodiment, a device determines a need to resynchronize a broadcast and unicast frequency-hopping schedules on its network interface. In response to the need, the device may solicit the broadcast schedule from one or more neighbor devices having the synchronized broadcast schedule, and then establishes the unicast schedule for the network interface using communication during the synchronized broadcast schedule.

Abstract translation: 在一个实施例中，设备确定需要在其网络接口上重新同步广播和单播跳频计划。 响应于需要，设备可以从具有同步广播调度的一个或多个相邻设备征求广播调度，然后在同步的广播调度中使用通信建立网络接口的单播调度。

公开(公告)号：US20150372903A1

公开(公告)日：2015-12-24

申请号：US14842240

申请日：2015-09-01

Applicant: Cisco Technology, Inc.

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

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

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).

Abstract translation: 在一个实施例中，设备从第一源路由接收由特定节点发起的目的地不可达消息，该消息携带由特定节点接收的封装分组。 作为响应，设备可以基于隧道报头和特定节点来确定沿着第一源路由的故障链路。 一旦确定了没有故障链路的替代源路由，设备可以在备用源路由上重新封装并重新发送原始分组，其中新的隧道报头指示替代源路由（例如，并且新的跳数限制计数为 隧道报头和原始分组中的调整跳频限制计数）。

公开(公告)号：US20150334031A1

公开(公告)日：2015-11-19

申请号：US14812132

申请日：2015-07-29

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Jonathan W. Hui

IPC: H04L12/841 ,  H04L12/725 ,  H04L12/707 ,  H04L12/751

CPC classification number: H04L47/283 ,  H04L43/00 ,  H04L43/08 ,  H04L45/02 ,  H04L45/121 ,  H04L45/24 ,  H04L45/30 ,  H04L47/32 ,  H04L47/56 ,  H04W72/048 ,  H04W72/12

Abstract: In one embodiment, certain nodes in a computer network maintain a plurality of routing topologies, each associated with a different corresponding delay (e.g., dynamically adjusted). Upon receiving a packet with an indicated delay budget at a particular node, the node updates the delay budget based on an incurred delay up to and including the particular node since the indicated delay budget was last updated, and selects a particular routing topology on which to forward the packet based on the updated delay budget and the corresponding routing topology delays. The packet may then be forwarded with the updated delay budget on the selected routing topology, accordingly.

Abstract translation: 在一个实施例中，计算机网络中的某些节点维护多个路由拓扑，每个路由拓扑与不同的对应延迟（例如，动态调整）相关联。 在特定节点接收到具有指示的延迟预算的分组之后，节点根据所指示的延迟预算最近更新时，基于直到并包括特定节点的发生的延迟来更新延迟预算，并且选择特定路由拓扑 基于更新的延迟预算和相应的路由拓扑延迟来转发分组。 相应地，可以在所选择的路由拓扑上以更新的延迟预算转发分组。

公开(公告)号：US09078212B2

公开(公告)日：2015-07-07

申请号：US14155101

申请日：2014-01-14

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  David E. Culler

IPC: G08C17/00 ,  H04W52/02

CPC classification number: H04W52/0225 ,  Y02D70/142 ,  Y02D70/144

Abstract: A system and method allows devices to send and receive packets while using power to do so in a manner that responds to events, such as receipt or other identification of different parameters that control how packets are sent and received.

Abstract translation: 系统和方法允许设备发送和接收数据包，同时以响应事件的方式发送和接收数据包，例如接收或其他识别控制分组如何发送和接收的不同参数。

公开(公告)号：US20150186642A1

公开(公告)日：2015-07-02

申请号：US14165439

申请日：2014-01-27

Applicant: CISCO TECHNOLOGY, INC.

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

IPC: G06F21/55

CPC classification number: G06F21/554 ,  H04W12/12

Abstract: In one embodiment, techniques are shown and described relating to quarantine-based mitigation of effects of a local DoS attack. A management device may receive data indicating that one or more nodes in a shared-media communication network are under attack by an attacking node. The management device may then communicate a quarantine request packet to the one or more nodes under attack, the quarantine request packet providing instructions to the one or more nodes under attack to alter their frequency hopping schedule without allowing the attacking node to learn of the altered frequency hopping schedule.

Abstract translation: 在一个实施例中，显示和描述与基于隔离的缓解本地DoS攻击的影响相关的技术。 管理设备可以接收指示共享媒体通信网络中的一个或多个节点受攻击节点攻击的数据。 然后，管理设备可以向被攻击的一个或多个节点传送隔离请求分组，所述隔离请求分组向被攻击的一个或多个节点提供指令以改变其跳频计划，而不允许攻击节点学习改变的频率 跳跃时间表。

公开(公告)号：US20150180772A1

公开(公告)日：2015-06-25

申请号：US14136425

申请日：2013-12-20

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/721

CPC classification number: H04L45/72 ,  H04B3/54 ,  H04L45/48 ,  H04W40/16 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/34

Abstract: In a multiple interface, low power and lossy network comprising a plurality of devices, interface options for a source route to minimize self-interferences are desired. The ability to request a interface technology for a device to use with neighboring devices allows multiple transmissions to occur simultaneously without interfering with each other. A root phase device obtains interface option information from the devices. Each device in a network path determines the interface options available, such as powerline communications (“PLC”) and radio frequency (“RF”). The device transmits the interface options to the parent device. The parent device transmits the interface options up the network path toward the root phase device, which collects the interface options and determines transmission routes to any needed endpoint device. The transmission route will comprise the device routes and a interface option for each hop from a parent device to a child device.

Abstract translation: 在多接口中，包括多个设备的低功率和有损耗的网络是希望用于最小化自干扰的源路由的接口选项。 请求接口技术以使设备与相邻设备一起使用的能力允许多个传输同时发生而不会彼此干扰。 根相设备从设备获取接口选项信息。 网络路径中的每个设备确定可用的接口选项，例如电力线通信（“PLC”）和射频（“RF”）。 设备将接口选项发送到父设备。 父设备将网络路径上的接口选项发送到根相设备，该根相设备收集接口选项并确定到任何所需端点设备的传输路由。 传输路由将包括从父设备到子设备的每一跳的设备路由和接口选项。

公开(公告)号：US20150071295A1

公开(公告)日：2015-03-12

申请号：US14543880

申请日：2014-11-17

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/725 ,  H04J3/06 ,  H04L12/707

CPC classification number: H04L45/306 ,  H04B1/713 ,  H04J3/0658 ,  H04L45/22 ,  H04L45/48

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：US20150043384A1

公开(公告)日：2015-02-12

申请号：US13960701

申请日：2013-08-06

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/24

CPC classification number: H04L45/02 ,  H04L41/12 ,  H04L45/121 ,  H04L45/125 ,  H04L45/306 ,  H04L45/48 ,  H04W40/12 ,  H04W40/246 ,  H04W40/30 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/34

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：US20150003428A1

公开(公告)日：2015-01-01

申请号：US14482567

申请日：2014-09-10

Applicant: Cisco Technology, Inc.

Inventor： Lik Chuen Alec Woo ,  Jonathan W. Hui ,  Wei Hong

IPC: H04W72/04 ,  H04L5/06

CPC classification number: H04W72/0446 ,  H04B1/7156 ,  H04H20/59 ,  H04L5/06 ,  H04L12/189 ,  H04W72/005 ,  H04W74/0808

Abstract: In one embodiment, a rendezvous request message is generated (e.g., by a sender) that specifies a channel C and a rendezvous time T for which a distributed message is to be transmitted in a frequency-hopping computer network. The rendezvous request message is then transmitted on one or more channels used in the computer network based on reaching a plurality of intended recipients of the distributed message with the rendezvous request message prior to rendezvous time T. Accordingly, the distributed message is then transmitted on channel C at rendezvous time T. In another embodiment, a device receives a rendezvous request message, and in response to determining to honor the rendezvous request message, listens for the distributed message on channel C at rendezvous time T.

Abstract translation: 在一个实施例中，生成会话请求消息（例如，由发送者），其指定要在跳频计算机网络中发送分布式消息的信道C和会合时间T. 然后，基于在会合时间T之前到达具有会合请求消息的分布式消息的多个预期接收者，在计算机网络中使用的一个或多个信道上发送会合请求消息。因此，分布式消息随后在信道 在另一个实施例中，设备接收会合请求消息，并且响应于确定尊重会合请求消息，在会合时间T在频道C上侦听分布式消息。