公开(公告)号：US20150078204A1

公开(公告)日：2015-03-19

申请号：US14030949

申请日：2013-09-18

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Jean-Philippe VASSEUR ,  Patrick WETTERWALD

IPC: H04L5/00 ,  H04L12/721

CPC classification number: H04L5/0067 ,  H04L45/12 ,  H04L45/42 ,  H04W40/12 ,  H04W84/18 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/34

Abstract: In one embodiment, a method comprises a path computation device receiving device information from member network devices, each member network device belonging to a directed acyclic graph to a destination in a low power lossy network; and the path computation device classifying each member network device belonging to a directed acyclic graph as belonging to a dominating set, for generation of optimized routes distinct from any directed acyclic graph, for reaching any one of the member network devices of the dominating set.

Abstract translation: 在一个实施例中，一种方法包括路径计算设备，从成员网络设备接收设备信息，每个成员网络设备属于低功率有损网络中的目的地的有向非循环图; 以及路径计算装置，将属于有向非循环图的每个成员网络装置分类为属于主导集合，用于生成与任何有向无环图不同的优化路线，用于到达主导集合的任何一个成员网络装置。

公开(公告)号：US20140122741A1

公开(公告)日：2014-05-01

申请号：US13768453

申请日：2013-02-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Pascal THUBERT ,  Jonathan MARTIN ,  Patrick WETTERWALD

IPC: H04L12/56

CPC classification number: H04L45/04 ,  H04L45/02 ,  H04L45/28 ,  H04L45/46

Abstract: In one embodiment, a method comprises creating, in a computing network, a hierarchal routing topology for reaching a destination, the hierarchal routing topology comprising a single parent supernode providing reachability to the destination, and a plurality of child supernodes, each child supernode comprising one or more exit network devices each providing a corresponding link to the parent supernode; receiving, in one of the child supernodes, a data packet for delivery to the destination; causing the data packet to traverse along any available data link in the one child supernode independent of any routing topology established by network devices in the one child supernode, until the data packet reaches one of the exit network devices; and the one exit network device forwarding the data packet to the parent supernode, via the corresponding link, for delivery to the destination.

Abstract translation: 在一个实施例中，一种方法包括在计算网络中创建用于到达目的地的分层路由拓扑，所述分层路由拓扑包括提供到达目的地的可达性的单个父超节点以及多个子超节点，每个子超节点包括一个 或多个出口网络设备，每个退出网络设备提供到父级超级节点的对应链路; 在其中一个子超文本中接收用于传送到目的地的数据包; 使得数据分组沿着所述一个子超节点中的任何可用数据链路遍历，独立于由所述一个子超节点中的网络设备建立的任何路由拓扑，直到所述数据分组到达所述退出网络设备之一; 并且一个出口网络设备经由相应的链路将数据分组转发到父超节点，以传送到目的地。

公开(公告)号：US20240422687A1

公开(公告)日：2024-12-19

申请号：US18334958

申请日：2023-06-14

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Jean-Philippe VASSEUR ,  Eric M. LEVY-ABEGNOLI ,  Patrick WETTERWALD ,  Jerome HENRY

IPC: H04W52/02

Abstract: Techniques for improved networking are provided. An access point (AP) determines an AP duty cycle based at least in part on transmission activity of a station (STA) associated to the AP. The AP duty cycle is signaled via one or more beacon frames transmitted by the AP. The AP exchanges data in accordance with the AP duty cycle, comprising exchanging data with the STA during one or more active periods indicated by the AP duty cycle, and sleeping during one or more inactive periods indicated by the AP duty cycle.

公开(公告)号：US20230284288A1

公开(公告)日：2023-09-07

申请号：US17683833

申请日：2022-03-01

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Domenico FICARA ,  Alessandro ERTA ,  Amine CHOUKIR ,  Patrick WETTERWALD

IPC: H04W74/08 ,  H04W48/20 ,  H04W72/02

CPC classification number: H04W74/085 ,  H04W48/20 ,  H04W72/02

Abstract: In one embodiment, an access point of an overhead mesh of access points in an area selects a range of client identifiers. The access point sends, via a beam cone transmitted in a substantially downward direction towards a floor of the area, a trigger signal that includes the range of client identifiers and prompts client devices having identifiers in that range to send best effort transmissions towards the overhead mesh. The access point detects a collision between the best effort transmissions of the client devices. The access point adjusts the range of client identifiers so as to avoid future collisions between the best effort transmissions of the client devices.

公开(公告)号：US20230074297A1

公开(公告)日：2023-03-09

申请号：US17887706

申请日：2022-08-15

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Jean-Philippe VASSEUR ,  Patrick WETTERWALD ,  Eric LEVY-ABEGNOLI

IPC: H04W4/70 ,  H04W48/18 ,  H04W24/02

Abstract: In one embodiment, a supervisory device in a network forms a virtual access point (VAP) for a node in the network. A set of access points (APs) in the network are mapped to the VAP as part of a VAP mapping and the node treats the APs in the VAP mapping as a single AP for purposes of communicating with the network. The supervisory device receives measurements from the APs in the VAP mapping regarding communications associated with the node. The supervisory device identifies a movement of the node based on the received measurements from the APs in the VAP mapping. The supervisory device adjusts the set of APs in the VAP mapping based on the identified movement of the node.

公开(公告)号：US20230268996A1

公开(公告)日：2023-08-24

申请号：US17581163

申请日：2022-01-21

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Domenico FICARA ,  Patrick WETTERWALD ,  Alessandro ERTA ,  Amine CHOUKIR

IPC: H04B10/114 ,  H04W76/15 ,  H04W72/04

CPC classification number: H04B10/1149 ,  H04W72/0426 ,  H04W76/15

Abstract: In one embodiment, a device registers with a controller for a mesh of overhead access points. The device receives, from the controller, a communication schedule for the device. The device generates a message to be sent to the mesh of overhead access points. The device transmits, according to the communication schedule, the message as a beam cone directed substantially upward relative to the device towards the mesh of overhead access points. The message is received and relayed by one or more particular access points in the mesh without the device previously performing a wireless association exchange with those one or more particular access points.

公开(公告)号：US20230239739A1

公开(公告)日：2023-07-27

申请号：US17581188

申请日：2022-01-21

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Domenico FICARA ,  Patrick WETTERWALD ,  Alessandro ERTA ,  Amine CHOUKIR

IPC: H04W28/16 ,  H04B10/114 ,  H04W16/28 ,  H04W16/26

CPC classification number: H04W28/16 ,  H04B10/1149 ,  H04W16/28 ,  H04W16/26 ,  H04W84/18

Abstract: In one embodiment, a controller identifies access points forming an overhead mesh of access points in an area, each access point comprising one or more directional transmitters each configured to transmit a beam cone in a substantially downward direction towards a floor of the area. The controller assigns the access points to access point groups. The controller generates communication schedules for the access points such that each access point in an access point group is on a common channel and only one of neighboring directional transmitters of access points in that group is able to transmit at any given time. The controller sends the communication schedules to the access points forming the overhead mesh of access points in the area.

公开(公告)号：US20240172298A1

公开(公告)日：2024-05-23

申请号：US18424130

申请日：2024-01-26

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Domenico FICARA ,  Alessandro ERTA ,  Amine CHOUKIR ,  Patrick WETTERWALD

IPC: H04W74/0833 ,  H04W48/20 ,  H04W72/02

CPC classification number: H04W74/085 ,  H04W48/20 ,  H04W72/02

Abstract: In one embodiment, an access point of an overhead mesh of access points in an area selects a range of client identifiers. The access point sends, via a beam cone transmitted in a substantially downward direction towards a floor of the area, a trigger signal that includes the range of client identifiers and prompts client devices having identifiers in that range to send best effort transmissions towards the overhead mesh. The access point detects a collision between the best effort transmissions of the client devices. The access point adjusts the range of client identifiers so as to avoid future collisions between the best effort transmissions of the client devices.

公开(公告)号：US20230379250A1

公开(公告)日：2023-11-23

申请号：US17750215

申请日：2022-05-20

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick WETTERWALD ,  Eric LEVY-ABEGNOLI ,  Jonas ZADDACH

IPC: H04L45/745 ,  H04L45/00 ,  H04L45/42 ,  H04L43/106

CPC classification number: H04L45/745 ,  H04L45/566 ,  H04L45/42 ,  H04L43/106

Abstract: In one embodiment, an illustrative method herein may comprise: receiving, at an access device for a network, a packet having a set of packet features; making, by the access device, a determination that the set of packet features of the packet match a forwarding ruleset that defines differentiated services for different types of packets based on their packet features; formulating, by the access device and based on the determination, a compressed header for the packet that has one or more differentiated service indicators based on the forwarding ruleset; and forwarding, from the access device, the packet with the compressed header, to cause forwarding decisions to be made within the network for the packet based on the one or more differentiated service indicators in its compressed header.

公开(公告)号：US20210297509A1

公开(公告)日：2021-09-23

申请号：US16823070

申请日：2020-03-18

Applicant: Cisco Technology, Inc.

Inventor： Pascal THUBERT ,  Eric M. LEVY-ABEGNOLI ,  Patrick WETTERWALD ,  Jean-Philippe VASSEUR

IPC: H04L29/06 ,  H04W28/06 ,  H04L1/00 ,  H04W72/12

Abstract: Protocol independent signal slotting and scheduling is provided by receiving a frame including a header and a payload for transmission; in response to determining that the frame matches a rule identifying the frame as part of a control loop, compressing the header according to the rule to produce a compressed packet of a predefined size that includes the compressed header and the payload; scheduling transmission of the compressed packet; and transmitting the compressed packet to a receiving device. In some embodiments, before compressing the frame, in response to determining that a size of the payload does not match a predefined size threshold: the payload is fragmented into a plurality of portions, wherein each portion satisfies the predefined size threshold, or the compressed packet is padded to the predefined size threshold via forward error correction padding information.