公开(公告)号：US20180109533A1

公开(公告)日：2018-04-19

申请号：US15485695

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 ,  H04L12/24 ,  G06F9/445 ,  H04L29/08 ,  G06N99/00

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 identifies a configuration for the particular node based on a node profile for the particular node. The server accesses a configuration interface of the particular node and instructs the particular node to use the identified configuration via the accessed configuration interface.

公开(公告)号：US09900169B2

公开(公告)日：2018-02-20

申请号：US14661301

申请日：2015-03-18

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Ijsbrand Wijnands ,  Gregory Shepherd

IPC: H04L1/16 ,  H04L12/18 ,  H04L1/18 ,  H04W52/02 ,  H04W72/00 ,  H04L1/00 ,  H04W84/18

CPC classification number: H04L12/1881 ,  H04L1/1614 ,  H04L1/188 ,  H04L2001/0093 ,  H04W52/0219 ,  H04W72/005 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: In one embodiment, a device in a network sends a first multicast message to a plurality of destinations in the network. The first multicast message includes a first bitmap that identifies the destinations. The device receives one or more acknowledgements from a subset of the destinations. The device determines a retransmission bitmap that identifies those of the plurality of destinations that did not acknowledge the first multicast message, based on the received one or more acknowledgements. The device sends a retransmission multicast message to those of the plurality of destinations that did not acknowledge the first multicast message. The retransmission multicast message includes the retransmission bitmap.

公开(公告)号：US09883507B2

公开(公告)日：2018-01-30

申请号：US15335945

申请日：2016-10-27

Applicant: Cisco Technology, Inc.

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

IPC: H04J3/00 ,  H04W72/04 ,  H04W72/08 ,  H04W40/22 ,  H04L12/727 ,  H04L12/753 ,  H04L12/733 ,  H04W28/04

CPC classification number: H04W72/0446 ,  H04L45/121 ,  H04L45/122 ,  H04L45/48 ,  H04W28/04 ,  H04W40/22 ,  H04W72/082 ,  H04W74/085 ,  Y02B70/30 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/39

Abstract: In one embodiment, a particular node operates a distributed routing protocol in a shared-media communication network, and distributes timeslot allocations using the routing protocol, where the particular node as a parent node allocates a pool of timeslots available to child nodes of the parent node. The parent node specifically allocates particular timeslots from the pool to particular child nodes according to particular flows from a source to a target in the shared-media communication network in order to meet a defined time budget for a resultant time-synchronized path from the source to the target.

公开(公告)号：US09882804B2

公开(公告)日：2018-01-30

申请号：US14038253

申请日：2013-09-26

Applicant: Cisco Technology, Inc.

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

IPC: G06F15/173 ,  H04L12/721 ,  H04W40/26 ,  H04W40/30 ,  H04L12/717 ,  H04L12/753

CPC classification number: H04L45/12 ,  H04L45/42 ,  H04L45/44 ,  H04L45/48 ,  H04W40/26 ,  H04W40/30

Abstract: In one embodiment, a device both communicates with a network operating a distributed proactive routing protocol, and participates in a centralized path computation protocol. The device communicates routing characteristics of the distributed proactive routing protocol for the network from the network to the centralized path computation protocol, and also communicates one or more computed paths from the centralized path computation protocol to the network, where the computed paths from the centralized path computation protocol are based on the routing characteristics of the distributed proactive routing protocol for the network.

公开(公告)号：US20180026891A1

公开(公告)日：2018-01-25

申请号：US15711417

申请日：2017-09-21

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/801 ,  H04L12/707

Abstract: In one embodiment, a device in a network receives data regarding traffic volumes of deterministic and non-deterministic traffic along a first path in the network. The device predicts, using the received data, an increase in the traffic volume of the non-deterministic traffic along the first path in the network. The device identifies a period of time associated with the predicted increase in the traffic volume of the non-deterministic traffic along the first path. The device causes the deterministic traffic to be sent along a second path in the network during the identified period of time, to allow the first path to accommodate the predicted increase in the traffic volume of the non-deterministic traffic along the first path.

公开(公告)号：US20180026870A1

公开(公告)日：2018-01-25

申请号：US15216007

申请日：2016-07-21

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/727 ,  H04L12/751 ,  H04L29/06 ,  H04L12/721

CPC classification number: H04L45/121 ,  H04L45/02 ,  H04L45/26 ,  H04L45/302 ,  H04L45/32 ,  H04L45/48 ,  H04L65/4076

Abstract: In one embodiment, a multicast listener device floods a path lookup request to search for a multicast tree, and may then receive path lookup responses from candidate nodes on the multicast tree, where each of the path lookup responses indicates a unicast routing cost from a respective candidate node to the multicast listener device, and where each of the candidate nodes is configured to suppress a path lookup response if a total path latency from a source of the multicast tree to the multicast listener device via that respective candidate node is greater than a maximum allowable path latency. The multicast listener device may then select a particular candidate node as a join point for the multicast tree based on the particular node having a lowest associated unicast routing cost to the multicast listener device from among the candidate nodes, and joins the multicast tree at the selected join point.

公开(公告)号：US09866431B2

公开(公告)日：2018-01-09

申请号：US15611836

申请日：2017-06-02

Applicant: Cisco Technology, Inc.

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

IPC: H04J1/16 ,  H04L12/24

CPC classification number: H04L41/0803 ,  H04L41/04

Abstract: In one embodiment, a scheduling device in a network receives routing metrics regarding a network path between a device controller and a networked device. The scheduling device also receives controller metrics for the device controller. The scheduling device determines time costs associated with the network path and one or more control operations performed by the device controller, based on the routing and controller metrics. The scheduling device generates a communication schedule based on the time costs and instructs the device controller and the networked device to use the communication schedule.

公开(公告)号：US09800506B2

公开(公告)日：2017-10-24

申请号：US14336250

申请日：2014-07-21

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/801 ,  H04L12/825 ,  H04W72/04 ,  H04W72/12

CPC classification number: H04L47/127 ,  H04L47/17 ,  H04L47/25 ,  H04W72/0446 ,  H04W72/121 ,  H04W72/1252

Abstract: In one embodiment, a device in a network receives one or more time slot usage reports regarding a use of time slots of a channel hopping schedule by nodes in the network. The device predicts a time slot demand change for a particular node based on the one or more time slot usage reports. The device identifies a time frame associated with the predicted time slot demand change. The device adjusts a time slot assignment for the particular node in the channel hopping schedule based on predicted demand change and the identified time frame associated with the predicted time slot demand change.

公开(公告)号：US20170295071A1

公开(公告)日：2017-10-12

申请号：US15094230

申请日：2016-04-08

Applicant: Cisco Technology, Inc.

Inventor： Xuechen Yang ,  Rudolph B. Klecka, III ,  Pascal Thubert ,  Patrick Wetterwald ,  Eric Levy-Abegnoli

IPC: H04L12/24 ,  H04L29/08 ,  H04L12/46

CPC classification number: H04L41/145 ,  H04L12/4641 ,  H04L41/0893 ,  H04L41/12 ,  H04L67/12

Abstract: In one embodiment, a device receives a network policy based upon, at least in part, a physical network, and configures a design of an industrial network overlay on the physical network based upon, at least in part, the network policy. The configuring, according to the techniques herein, may generally include: determining a number of virtual local area networks (VLANs) within the industrial network overlay; determining which devices of the physical network are on which VLAN; determining placement of at least one virtual firewall within the industrial network overlay; and determining at least one communication path for the industrial network overlay between at least two devices.

公开(公告)号：US09699075B2

公开(公告)日：2017-07-04

申请号：US15284000

申请日：2016-10-03

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrice Bellagamba ,  Dirk Anteunis ,  Eric Levy-Abegnoli

IPC: H04L12/703 ,  H04L12/24 ,  H04L12/705 ,  H04L12/939 ,  H04L12/753

CPC classification number: H04L45/28 ,  H04L41/0668 ,  H04L45/18 ,  H04L45/48 ,  H04L49/557

Abstract: A network includes routing arcs for routing network traffic to a destination. Each arc comprising nodes connected in sequence by reversible links oriented to direct network traffic to first and second edge nodes through which the network traffic exits the arc. The nodes in the arc detect a first failure. In response, the nodes exchange first management frames to reverse links in the arc so that the network traffic in the arc is directed away from the first failure toward the first edge node of the arc through which the network traffic exits the arc. The nodes detect a second failure in the arc that is spaced apart from the first failure. In response, the nodes exchange second management frames to freeze incoming edges of parent arcs to prevent network traffic in the corresponding parent arc from entering the arc.