公开(公告)号：US20180367595A1

公开(公告)日：2018-12-20

申请号：US15624071

申请日：2017-06-15

Applicant: Cisco Technology, Inc.

Inventor： Eric Levy-Abegnoli ,  Pascal Thubert ,  Patrick Wetterwald ,  Jean-Philippe Vasseur

IPC: H04L29/08 ,  H04L12/24 ,  H04L12/727

CPC classification number: H04L67/04 ,  H04L41/046 ,  H04L41/0893 ,  H04L43/08 ,  H04L45/12 ,  H04L45/121 ,  H04L45/125 ,  H04L45/44 ,  H04L45/563 ,  H04L67/10 ,  H04L67/12 ,  H04W4/70

Abstract: In one embodiment, a device in a network receives a path computation agent configured to determine a path in the network that satisfies an objective function. The device executes the path computation agent to update state information regarding the network maintained by the path computation agent. The device selects a neighbor of the device in the network to execute the path computation agent based on the updated state information regarding the network. The device instructs the selected neighbor to execute the path computation agent with the updated state information regarding the network. The device unloads the path computation agent from the device after selecting the neighbor of the device to execute the path computation agent.

公开(公告)号：US10097471B2

公开(公告)日：2018-10-09

申请号：US14876000

申请日：2015-10-06

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Pascal Thubert ,  Patrick Wetterwald ,  Eric Levy-Abegnoli

IPC: H04L12/851 ,  H04L12/911

Abstract: In one embodiment, a device in a network receives information regarding one or more traffic flows in the network. The device identifies a particular one of the one or more traffic flows as a seasonal traffic flow based on the information regarding the one or more traffic flows. The device determines whether a service level agreement associated with the seasonal traffic flow is met. The device causes a time-based path for the seasonal traffic flow to be provisioned, in response to a determination that the service level agreement associated with the seasonal traffic flow is not met.

公开(公告)号：US20180124688A1

公开(公告)日：2018-05-03

申请号：US15491203

申请日：2017-04-19

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald ,  Eric Levy-Abegnoli

IPC: H04W48/14 ,  H04W8/24 ,  H04L1/18 ,  H04W24/02

CPC classification number: H04W48/14 ,  H04L1/18 ,  H04W24/02 ,  H04W88/08

Abstract: In one embodiment, a supervisory device in a network receives from a plurality of access points (APs) in the network data regarding a network availability request broadcast by a node seeking to access the network and received by the APs in the plurality. The supervisory device uniquely associates the node with a virtual access point (VAP) for the node and forms a VAP mapping between the VAP for the node and a set of the APs in the plurality selected based on the received data regarding the network availability request. One of the APs in the mapping is designated as a primary access point for the node. The supervisory device instructs the primary AP to send a network availability response to the node that includes information for the VAP. The node uses the information for the VAP to access the network via the set of APs in the VAP mapping.

公开(公告)号：US20180109492A1

公开(公告)日：2018-04-19

申请号：US15485673

申请日：2017-04-12

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald ,  Eric Levy-Abegnoli

IPC: H04L29/06 ,  H04L12/46 ,  G06N99/00

CPC classification number: H04L63/029 ,  G06N20/00 ,  H04L12/4641 ,  H04L63/0236 ,  H04L63/0272 ,  H04L63/1425 ,  H04L63/1458

Abstract: In one embodiment, a server instructs one or more networking devices in a local area network (LAN) to form a virtual network overlay in the LAN that redirects traffic associated with a particular node in the LAN to the server. The server receives the redirected traffic associated with the particular node. The server trains a machine learning-based behavioral model for the particular node based on the redirected traffic. The server controls whether a particular redirected traffic flow associated with the node in the LAN is sent to a destination of the traffic flow using the trained behavioral model.

公开(公告)号：US09900079B2

公开(公告)日：2018-02-20

申请号：US15075562

申请日：2016-03-21

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jerome Henry ,  Patrick Wetterwald

IPC: H04B7/14 ,  H04L1/18 ,  H04L5/00

CPC classification number: H04B7/14 ,  H04B7/15507 ,  H04L1/1812 ,  H04L5/0055 ,  H04L5/006 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: In one embodiment, a device in a network sets a timer interval based in part on a distance between the device and a backbone of the network. The device receives a unicast communication destined for a remote destination that was sent via broadcast. The device determines a count of receipt acknowledgements of the communication sent by other devices in the network. At the end of the timer interval, the device sends a receipt acknowledgement of the communication via broadcast, in response to the count of receipt acknowledgements sent by other devices in the network being below a threshold amount.

公开(公告)号：US09673856B1

公开(公告)日：2017-06-06

申请号：US14950459

申请日：2015-11-24

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Jean-Philippe Vasseur ,  Eric Michel Levy-Abegnoli

IPC: H04B1/713 ,  H04B1/7143 ,  H04W72/04

CPC classification number: H04B1/7143 ,  H04W72/0453

Abstract: In one embodiment, a method comprises: allocating, to each network device in a time slotted channel hopping network, a corresponding swapping schedule that maps the network device to different unique sequence offsets for different timeslots allocated to the corresponding network device, each unique sequence offset identifying a corresponding shifted position in a prescribed repeating channel hopping sequence relative to an epochal start of a linearly increasing timeslot value; and causing each network device to transmit according to its corresponding swapping schedule, enabling a channel hopping sequence of each network device to be undetectable relative to the prescribed repeating channel hopping sequence.

公开(公告)号：US09602420B2

公开(公告)日：2017-03-21

申请号：US13796176

申请日：2013-03-12

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Paul Didier

IPC: H04L12/807 ,  H04L12/833 ,  H04L12/841

CPC classification number: H04L47/27 ,  H04L45/24 ,  H04L47/2458 ,  H04L47/28 ,  H04W74/04

Abstract: In one embodiment, an intermediate node in a contention-based shared-media computer network determines a scheduled window within which a packet (with an assigned priority) should be transmitted by the intermediate node. In particular, the intermediate node may specifically determine whether an actual transmission time is prior to, during, or after the window, and sets a priority of the packet as either i) a reduced priority when the actual transmission time is prior to the window, ii) the assigned priority when the actual transmission time is during the window, or iii) an augmented priority when the actual transmission time is after the window. As such, the intermediate node may then transmit the packet from the intermediate node with the set priority at the actual transmission time.

公开(公告)号：US09485157B2

公开(公告)日：2016-11-01

申请号：US14336486

申请日：2014-07-21

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald

IPC: G01R31/08 ,  H04L12/26 ,  H04J3/16 ,  H04W40/24 ,  H04L12/753

CPC classification number: H04L43/06 ,  H04J3/16 ,  H04L45/48 ,  H04W40/248

Abstract: In one embodiment, a network node provides a time slotted channel hopping (TSCH) schedule to one or more child nodes of the network node. The TSCH schedule includes one or more mandatory routing protocol report time slots. The network node receives routing protocol reports from the one or more child nodes according to the TSCH schedule. The network node aggregates the received routing protocol reports into an aggregated routing protocol report. The network node provides the aggregated routing protocol report to a parent of the network node during a time slot that is subsequent to the one or more mandatory time slots for the one or more child nodes.

Abstract translation: 在一个实施例中，网络节点向网络节点的一个或多个子节点提供时隙信道跳频（TSCH）调度。 TSCH调度包括一个或多个强制路由协议报告时隙。 网络节点根据TSCH调度从一个或多个子节点接收路由协议报告。 网络节点将接收到的路由协议报告聚合成聚合路由协议报告。 网络节点在一个或多个子节点的一个或多个强制时隙之后的时隙中向网络节点的父节点提供聚合的路由协议报告。

公开(公告)号：US09479421B2

公开(公告)日：2016-10-25

申请号：US14482571

申请日：2014-09-10

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald ,  James Pylakutty Mundenmaney

IPC: H04L12/28 ,  H04L12/751 ,  H04L12/24 ,  H04W40/24 ,  H04L12/753 ,  H04W84/18 ,  H04L12/721

CPC classification number: H04L45/025 ,  H04L41/12 ,  H04L45/02 ,  H04L45/14 ,  H04L45/34 ,  H04L45/48 ,  H04W40/24 ,  H04W84/18 ,  Y02D70/00

Abstract: In one embodiment, a method comprises identifying, by a network device operating in a network topology as a directed acyclic graph (DAG) root, a source-route path for reaching a destination device in the network topology; determining whether one or more parent devices along the source-route path between the network device and the destination device are capable of storing a route entry specifying routing information for reaching the destination device; and causing installation of a route entry for reaching the destination device in one or more of the parent devices determined as capable of storing the corresponding route entry.

Abstract translation: 在一个实施例中，一种方法包括通过在网络拓扑中作为有向无环图（DAG）根操作的网络设备识别用于到达网络拓扑中的目的地设备的源路由路径; 确定沿着网络设备和目的设备之间的源路由路径的一个或多个父设备是否能够存储指定用于到达目的地设备的路由信息​​的路由条目; 并且导致在被确定为能够存储对应的路由条目的一个或多个父设备中安装到达目的地设备的路由条目。

公开(公告)号：US09319332B2

公开(公告)日：2016-04-19

申请号：US14334821

申请日：2014-07-18

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jean-Philippe Vasseur ,  Patrick Wetterwald

IPC: H04L12/26 ,  H04L12/841 ,  H04L12/803

CPC classification number: H04L47/28 ,  H04L47/12 ,  H04L47/125 ,  H04L47/14 ,  H04L47/24

Abstract: In one embodiment, a device determines that a latency between a receive timeslot of a channel hopping schedule of the device and a transmit timeslot of the channel hopping schedule is greater than a latency threshold for a particular traffic flow to be received during the receive timeslot. The device requests an additional transmit timeslot for the channel hopping schedule from a parent node of the device in the network. The device receives an indication of a newly allocated transmit timeslot for the channel hopping schedule from the parent node. The device maps the receive timeslot to one of the transmit timeslots of the channel hopping schedule, wherein the particular traffic flow is to be forwarded to a second device during the mapped transmit timeslot.

Abstract translation: 在一个实施例中，设备确定设备的信道跳频调度的接收时隙与信道跳频调度的发送时隙之间的等待时间大于在接收时隙期间接收的特定业务流的等待时间阈值。 该设备从网络中的设备的父节点请求用于信道跳频调度的附加传输时隙。 设备从父节点接收关于信道跳频调度的新分配的发射时隙的指示。 设备将接收时隙映射到信道跳频调度的发送时隙之一，其中在映射的发送时隙期间将特定业务流转发到第二设备。