公开(公告)号：US10320659B2

公开(公告)日：2019-06-11

申请号：US15361563

申请日：2016-11-28

Applicant: Cisco Technology, Inc.

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

IPC: H04L12/721 ,  H04W40/04

Abstract: In one embodiment, a method comprises receiving, by a network device in a deterministic data network, one or more deterministic schedules for reaching a destination network device along one or more deterministic paths in the deterministic data network; generating, by the network device, a deterministic source-route path for reaching the destination network device based on the deterministic schedules allocated for the deterministic paths, the deterministic source-route path comprising, for each specified hop, a corresponding deterministic start time; and outputting, by the network device, a source routed deterministic packet comprising the deterministic source-route path for deterministic forwarding of the source routed deterministic packet to the destination network device.

公开(公告)号：US10298346B2

公开(公告)日：2019-05-21

申请号：US15171518

申请日：2016-06-02

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Laurent Montini

IPC: H04J3/06 ,  H04W40/02 ,  H04W56/00 ,  H04W4/70 ,  H04L29/08 ,  H04W84/18

Abstract: In one embodiment, a method comprises receiving, by a network device, one or more advertisement messages comprising timing information describing a quality of a network clock that is originated by a master clock device at a root of a directed acyclic graph (DAG); the network device executing an objective function for the DAG providing an optimized loopless time topology for the network clock, synchronized to the master clock device, based on the timing information; and the network device attaching to a parent device in the DAG based on the objective function, for optimized generation of the network clock by the network device.

公开(公告)号：US10244525B2

公开(公告)日：2019-03-26

申请号：US15009872

申请日：2016-01-29

Applicant: Cisco Technology, Inc.

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

IPC: H04W72/04 ,  H04L12/44 ,  H04L12/24 ,  H04L5/00 ,  H04L12/751

Abstract: In one embodiment, a method comprises: promiscuously detecting, by a parent network device in a tree-based network topology, a data packet transmitted to a child network device attached to the parent network device, the data packet transmitted by a grandchild network device attached to the child network device; determining, by the parent network device, whether the data packet transmitted to the child network device is to be forwarded toward a destination via the parent network device; and the parent network device selectively initiating intercepted forwarding of the data packet toward the destination, on behalf of the child network device, based on determining that the data packet is to be forwarded toward the destination via the parent network device.

公开(公告)号：US10243926B2

公开(公告)日：2019-03-26

申请号：US15094177

申请日：2016-04-08

Applicant: Cisco Technology, Inc.

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

IPC: H04L29/06 ,  H04L29/08

Abstract: In one embodiment, a virtual firewall is installed on a port of a device that communicates across a zone boundary within an industrial network. The virtual firewall is then configured based on operation of the industrial network, such that the port may then communicate via the firewall to a remote virtual firewall of a remote port of a remote device across the zone boundary.

公开(公告)号：US20190075061A1

公开(公告)日：2019-03-07

申请号：US16179098

申请日：2018-11-02

Applicant: Cisco Technology, Inc.

Inventor： Pierre Pfister ,  Pascal Thubert ,  Victor Nguyen

IPC: H04L12/927 ,  H04L12/18 ,  H04L29/06

CPC classification number: H04L47/806 ,  H04L12/1868 ,  H04L69/161 ,  H04L2212/00

Abstract: Systems, methods, and computer-readable storage media for multi-destination TCP communications using bit indexed explicit replication (BIER). In some examples, a system can generate a TCP packet associated with a TCP session involving a set of destination devices, and encode an array of bits into the TCP packet to yield a TCP multicast packet. The array of bits can define the destination devices as destinations for the multicast packet. The system can transmit the TCP multicast packet towards the destination devices through a BIER domain. The system can receive acknowledgements from a first subset of the destination devices. Based on the acknowledgements, the system can determine that the first subset of the destination devices received the multicast packet and a second subset of the destination devices did not receive the multicast packet. The system can then retransmit the multicast packet to the second subset of the destination devices.

公开(公告)号：US10225789B2

公开(公告)日：2019-03-05

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 ,  H04L1/18 ,  H04W24/02

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：US20190068275A1

公开(公告)日：2019-02-28

申请号：US16053651

申请日：2018-08-02

Applicant: Cisco Technology, Inc.

Inventor： Joseph Michael Clarke ,  Gonzalo Salgueiro ,  Charles Calvin Byers ,  Ryan Steve D'Souza ,  Pascal Thubert ,  Andre Jean-Marie Surcouf ,  Jerome Henry

IPC: H04B7/15 ,  H04W24/02 ,  H04B7/26 ,  H04B7/155

Abstract: Various implementations disclosed herein enable transforming mutable wireless coverage areas using network coverage vehicles (NVCs) that are orchestrated by a network coverage controller. In various implementations, the method includes receiving coverage area performance characterization values from NCVs configured to provide a plurality of mutable wireless coverage areas. In various implementations, an arrangement of the mutable wireless coverage areas mutably defines the service area, which changes in accordance with changes to the arrangement of the mutable wireless coverage areas. In various implementations, the method also includes determining NCV operation adjustments for some of the NCVs based on the received coverage area performance characterization values in accordance with a service performance metric; and, altering an arrangement of one or more of the plurality of mutable wireless coverage areas within the service area by providing the NCV operation adjustments to some of the NCVs.

公开(公告)号：US10212182B2

公开(公告)日：2019-02-19

申请号：US15485680

申请日：2017-04-12

Applicant: Cisco Technology, Inc.

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

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

Abstract: In one embodiment, a server instructs one or more networking devices in a local area network (LAN) to form 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 determines a node profile for the particular node based in part on an analysis of the redirected traffic. The server configures the particular node based on the determined node profile for the particular node.

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.