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公开(公告)号：US10771531B2
公开(公告)日：2020-09-08
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 , H04L12/26 , H04L12/729 , H04L12/771 , H04L12/24 , H04L12/727 , 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.
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公开(公告)号：US10771405B2
公开(公告)日：2020-09-08
申请号：US16172598
申请日：2018-10-26
Applicant: Cisco Technology, Inc.
Inventor： Eric M. Levy-Abegnoli , Pascal Thubert , Patrick Wetterwald
IPC: H04L12/861 , H04L12/803 , H04L12/801 , H04L12/947 , H04L12/931
Abstract: A source access network device multicasts copies of a packet to multiple core switches, for switching to a same target access network device. The core switches are selected for the multicast based on a load balancing algorithm managed by a central controller. The target access network device receives at least one of the copies of the packet and generates at least metric indicative of a level of traffic congestion at the core switches and feeds back information regarding the recorded at least one metric to the controller. The controller adjusts the load balancing algorithm based on the fed back information for selection of core switches for a subsequent data flow.
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公开(公告)号：US10749746B2
公开(公告)日：2020-08-18
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: H04W84/12 , H04L12/24 , H04L12/911 , H04W88/08 , H04L12/931
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：US20200244576A1
公开(公告)日：2020-07-30
申请号：US16260820
申请日：2019-01-29
Applicant: Cisco Technology, Inc.
Inventor： Patrick Wetterwald , Eric Levy-Abegnoli , Pascal Thubert
IPC: H04L12/741 , H04L12/721 , H04L12/801 , H04L12/823 , H04L12/865
Abstract: In one embodiment, a particular device along a path in a deterministic network receives a first packet sent from a source towards a destination via the path. The particular device sends the first packet to a next hop device along the path, according to a deterministic schedule associated with the first packet. The particular device determines, after sending the first packet, an action to be performed on the first packet. The particular device then sends a second packet to the next hop device indicative of the determined action. The second packet causes another device along the path to perform the action on the first packet.
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65.发明申请公开(公告)号：US20200229246A1
公开(公告)日：2020-07-16
申请号：US16246953
申请日：2019-01-14
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Feiliang Wang , Huimin She , Patrick Wetterwald
Abstract: In one embodiment, a parent device in an unaligned wireless network may determine a superframe comprising a header timeslot followed by a plurality of sub timeslots. The parent device may transmit, to a plurality of child devices in the unaligned wireless network, a beacon during the header timeslot, wherein the beacon comprises i) synchronization information used by the plurality of child devices to synchronize to the header timeslot and ii) reservation information that indicates one or more reserved sub timeslots of the plurality of sub timeslots. The parent device may receive, from a particular child device of the plurality of child devices, a message during a particular sub timeslot of the plurality of sub timeslots that is different than the one or more reserved sub timeslots.
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Patent Agency Ranking
公开(公告)号：US10681128B2
公开(公告)日：2020-06-09
申请号：US15291211
申请日：2016-10-12
Applicant: Cisco Technology, Inc.
Inventor： Patrick Wetterwald , Eric Levy-Abegnoli , Pascal Thubert
IPC: G06F15/16 , H04L29/08 , H04L29/06 , H04W4/70 , H04L12/801
Abstract: In one embodiment, a device in a network identifies a node in the network that is not synchronized to a network time synchronization mechanism. The device determines a scheduled reception time for a particular deterministic traffic flow at which the device is to receive the traffic flow from the node. The device sends, prior to the scheduled reception time, a request to the node for the particular deterministic traffic flow. The request identifies the particular deterministic traffic flow and causes the node to send the traffic flow to the device. The device receives the particular deterministic traffic flow from the node at the scheduled reception time.
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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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