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：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：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：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：US20150106625A1

公开(公告)日：2015-04-16

申请号：US14576723

申请日：2014-12-19

Applicant: Cisco Technology, Inc.

Inventor： Navindra Yadav ,  Atul Mahamuni ,  Jonathan Hui ,  Wei Hong ,  Alec Woo

IPC: H04L9/08 ,  H04L9/14

CPC classification number: H04L9/0819 ,  H04L9/0827 ,  H04L9/0833 ,  H04L9/088 ,  H04L9/0891 ,  H04L9/14 ,  H04L9/321 ,  H04L9/3273 ,  H04L63/065 ,  H04L63/068 ,  H04L63/0823 ,  H04L63/12 ,  H04L2209/24 ,  H04L2463/061 ,  H04W12/04 ,  H04W12/06 ,  H04W12/10 ,  H04W84/18

Abstract: According to one embodiment, techniques are provided to enable secure communication among devices in a mesh network using a group temporal key. An authenticator device associated with a mesh network stores a pairwise master key for each of a plurality of devices in a mesh network upon authentication of the respective devices. Using the pairwise master key, the authenticator device initiates a handshake procedure with a particular device in the mesh network to mutually derive a pairwise temporal key from the pairwise master key. The authenticator device encrypts and signs a group temporal key using the pairwise temporal key for the particular device and sends the group temporal key encrypted and signed with the pairwise temporal key to the particular device.

Abstract translation: 根据一个实施例，提供了使用组时间密钥来实现网状网络中的设备之间的安全通信的技术。 与网状网络相关联的认证装置在对各个装置进行认证时，为网状网络中的多个装置中的每一个存储成对的主密钥。 使用成对主密钥，认证器设备发起与网状网络中的特定设备的握手过程，以从成对主密钥互相导出成对的时间密钥。 认证器设备使用特定设备的成对时间密钥对组临时密钥进行加密和签名，并将具有成对临时密钥加密和签名的组时间密钥发送到特定设备。

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。