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公开(公告)号：US20200107168A1
公开(公告)日：2020-04-02
申请号：US16149237
申请日：2018-10-02
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Srinath Gundavelli , Patrick Wetterwald , Eric Levy-Abegnoli
Abstract: In one embodiment, a supervisory service receives a registration message broadcast by a first vehicle and captured by a RSU in the network of RSUs. The supervisory service registers the first vehicle by validating a signature of the registration message without registering a media access control (MAC) address of the first vehicle and without causing to send a registration response to the first vehicle. The supervisory service receives a message broadcast by a second vehicle addressed to the first vehicle and captured by at least one RSU in the network of RSUs. The supervisory service selects one or more RSUs in the network of RSUs to re-broadcast the message. The supervisory service controls the one or more RSUs to re-broadcast the message.
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公开(公告)号：US20200092730A1
公开(公告)日：2020-03-19
申请号：US16133826
申请日：2018-09-18
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Jerome Henry , Patrick Wetterwald , Eric Levy-Abegnoli
IPC: H04W16/14 , H04W24/08 , H04W4/80 , H04B17/318 , H04W74/08
Abstract: Various embodiments disclosed herein enable performing energy detection on a subset of a channel. In various embodiments, a method of performing energy detection is performed by a computing device. In various embodiments, the computing device includes a wireless transceiver, one or more processors, and a non-transitory memory. In various embodiments, the method includes performing energy detection on one or more overlapping portions of a first channel and a second channel. In some embodiments, the method includes determining whether a detected energy level from the energy detection satisfies a threshold. In some embodiments, the method includes transmitting a signal into the first channel based on the threshold being satisfied.
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公开(公告)号：US20190342167A1
公开(公告)日：2019-11-07
申请号：US16511139
申请日：2019-07-15
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Jean-Phillippe Vasseur , Patrick Wetterwald , Eric Levy-Abegnoli
IPC: H04L12/24 , H04L12/911 , H04W84/12
Abstract: In one embodiment, a supervisory device in a network assigns different access points in the network to different access point groupings. Each of the different access point groupings uses a different network path to communicate with a given endpoint in the network. The supervisory device selects at least one of the access points in each of the different access point groupings for mapping to a virtual access point (VAP) for a node in the network as part of a VAP mapping. The supervisory device instructs the selected access points to form a VAP for the node. The node treats the access points in the VAP mapping as a single access point for purposes of communicating with the network.
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公开(公告)号：US10469563B2
公开(公告)日：2019-11-05
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 , H04L12/721 , H04L12/24 , H04L12/727 , H04L12/26 , H04W4/70
Abstract: These techniques introduce various “walker” agents that may physically move between different executing nodes/devices within the network. More specifically, 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.
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公开(公告)号：US10382397B2
公开(公告)日：2019-08-13
申请号：US15654070
申请日：2017-07-19
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Eric Levy-Abegnoli , Patrick Wetterwald
IPC: H04L29/06 , H04L29/12 , H04L12/743 , H04L12/741
Abstract: In one embodiment, a device in a network determines whether a destination address of a packet received by the device is within a neighbor discovery (ND) cache of the device. The device determines whether the destination address is not in a set of addresses used to generate an address lookup array or possibly in the set of addresses used to generate the address lookup array, in response to determining that the destination address of the packet is not within the ND cache. The device performs address resolution for the destination address of the packet, in response to determining that the destination address of the packet is possibly in the set of addresses used to generate the address lookup array.
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Patent Agency Ranking
公开(公告)号：US20190013996A1
公开(公告)日：2019-01-10
申请号：US15785833
申请日：2017-10-17
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Eric Levy-Abegnoli , Patrick Wetterwald , Jean-Philippe Vasseur
Abstract: In one embodiment, a device in a network receives a query walker agent configured to query information from a distributed set of devices in the network based on a query. The device executes the query walker agent to identify the query. The device updates state information of the executing query walker agent using local information from the device and based on the query. The device unloads the executing query walker agent after updating the state information. The device propagates the query walker agent with the updated state information to one or more of the distributed set of devices in the network, when the updated state information does not fully answer the query.
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公开(公告)号：US20180367594A1
公开(公告)日：2018-12-20
申请号：US15623902
申请日：2017-06-15
Applicant: Cisco Technology, Inc.
Inventor： Eric Levy-Abegnoli , Pascal Thubert , Patrick Wetterwald , Jean-Philippe Vasseur
IPC: H04L29/08 , H04L12/721
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.
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公开(公告)号：US10122589B2
公开(公告)日：2018-11-06
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
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.
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公开(公告)号：US09979619B2
公开(公告)日：2018-05-22
申请号：US14950042
申请日：2015-11-24
Applicant: Cisco Technology, Inc.
Inventor： Jean-Philippe Vasseur , Pascal Thubert , Patrick Wetterwald , Eric Levy-Abegnoli
IPC: H04L12/18 , H04L12/26 , H04L12/44 , H04L12/751 , H04L29/08 , H04L12/24 , H04L12/721
CPC classification number: H04L43/0835 , H04L12/1868 , H04L12/44 , H04L41/0677 , H04L41/142 , H04L45/70 , H04L67/12
Abstract: In one embodiment, a device in a network performs a first comparison between observed and expected packet error rates for a first path in the network. The device identifies one or more intersecting paths in the network that intersect the first path. The device performs one or more additional comparisons between observed and expected packet error rates for the intersecting paths that intersect the first path. The device identifies a particular node along the first path as a source of packet drops based on the first comparison between the observed and expected packet error rates for the first path and on the one or more additional comparisons between the observed and expected packet error rates for the intersecting paths that intersect the first path.
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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
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.
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