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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
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.
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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.
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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
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.
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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.
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公开(公告)号：US20170111271A1
公开(公告)日：2017-04-20
申请号：US14886352
申请日：2015-10-19
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Patrick Wetterwald , Jean-Philippe Vasseur , Eric Levy-Abegnoli
IPC: H04L12/721 , H04L12/823
CPC classification number: H04L45/70 , H04L45/121 , H04L47/14 , H04L47/32 , H04W40/20 , H04W40/24 , H04W40/38
Abstract: In one embodiment, a device in a network receives packet arrival information for a packet from a neighbor of the device in the network. The packet arrival information indicates a likelihood of the packet being received by a target node that is moving in the network were the packet forwarded by the neighbor to the target node. The device forwards the packet to the target node based on a determination that the device has a higher likelihood of the packet being received by target node were the packet forwarded by the device to the target node than were the packet forwarded by the neighbor to the target node.
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Patent Agency Ranking
公开(公告)号：US09621581B2
公开(公告)日：2017-04-11
申请号：US13839259
申请日：2013-03-15
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Christophe Benejean , Eric Levy-Abegnoli
IPC: H04L29/06 , H04L12/935 , H04L12/931 , H04L12/761 , H04L29/12 , H04L12/721 , H04L12/743
CPC classification number: H04L63/1458 , H04L45/16 , H04L45/66 , H04L45/7457 , H04L49/201 , H04L49/3009 , H04L61/103 , H04L63/1416
Abstract: In one embodiment, a switch in a computer network intercepts a packet to a destination target, the packet having a solicited node multicast address of the target as a destination media access control (MAC) address of the packet. As such, the switch may determine whether the solicited node multicast address is a hit or miss within a switch hardware table of the switch, and in response to a hit, re-writes the destination MAC address with a known value of the destination target from the table, and unicasts the packet to the destination target. In one or more additional embodiments, in response to a miss, and in response to a single-switch architecture, the switch drops the packet, while in response to a miss, and in response to a multi-switch architecture, the switch may compute a repository switch for the solicited multicast destination, and unicasts the packet to the computed repository switch.
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公开(公告)号：US20170026279A1
公开(公告)日：2017-01-26
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 , H04L12/939 , H04L12/24 , H04L12/705
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.
Abstract translation: 网络包括用于将网络流量路由到目的地的路由弧。 每个弧包括依次通过可逆链接连接的节点，所述可逆链接被定向以将网络业务定向到第一和第二边缘节点，网络业务通过所述第一和第二边缘节 电弧中的节点检测到第一个故障。 作为响应，节点交换第一管理帧以反转电弧中的链路，使得电弧中的网络业务被引导离开第一故障朝向网络业务离开电弧的弧的第一边缘节点。 节点检测到与第一个故障间隔开的电弧中的第二个故障。 作为响应，节点交换第二管理帧以冻结父弧的进入边，以防止相应的母弧中的网络流量进入弧。
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公开(公告)号：US09485136B2
公开(公告)日：2016-11-01
申请号：US14155562
申请日：2014-01-15
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Patrice Bellagamba , Dirk Anteunis , Eric Levy-Abegnoli
IPC: H04L12/24 , H04L12/939 , H04L12/703 , H04L12/753 , H04L12/705
CPC classification number: H04L45/28 , H04L41/0668 , H04L45/18 , H04L45/48 , H04L49/557
Abstract: A network includes multiple routing arcs for routing network traffic to a destination. Each arc comprising nodes connected in sequence by reversible links oriented away from a node initially holding a cursor toward one of first and second edge nodes through which the network traffic exits the arc. Each node includes a network device. The nodes in the arc detect a first failure in the arc. Responsive to the detecting the first failure, the nodes exchange first management frames over a data plane within the arc in order to transfer the cursor from the node initially holding the cursor to a first node proximate the first failure and reverse links in the arc as appropriate 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 is able to exit the arc.
Abstract translation: 网络包括用于将网络流量路由到目的地的多个路由弧。 每个弧包括通过可逆的链接依次连接的节点，所述可逆链接朝向远离最初保持光标的节点朝向第一和第二边缘节点之一，网络业务通过该节点离开该弧。 每个节点包括网络设备。 弧中的节点检测到弧中的第一个故障。 响应于检测到第一故障，节点通过弧内的数据平面交换第一管理帧，以将光标从最初保持光标的节点传送到靠近第一故障的第一节点，并且适当地在弧中反向链接 使得电弧中的网络流量被引导离开第一故障朝向电弧的第一边缘节点，网络业务通过该第一边缘节点能够离开电弧。
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公开(公告)号：US11743174B2
公开(公告)日：2023-08-29
申请号：US17062061
申请日：2020-10-02
Applicant: Cisco Technology, Inc.
Inventor： Patrick Wetterwald , Eric Levy-Abegnoli , Pascal Thubert
IPC: H04L45/24 , H04L47/2441 , H04L9/40 , H04L12/46 , H04L43/028
CPC classification number: H04L45/24 , H04L12/4666 , H04L43/028 , H04L47/2441 , H04L63/0236 , H04L63/101
Abstract: In one embodiment, a particular device in a deterministic network performs classification of one or more packets of a traffic flow between a source and a destination in the deterministic network. The particular device determines, based on the classification of the one or more packets, a requirement of the traffic flow. The particular device performs, based on the requirement, a packet operation on at least one packet of the traffic flow. The particular device sends packets of the traffic flow towards the destination via two or more paths in the deterministic network.
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公开(公告)号：US20230171575A1
公开(公告)日：2023-06-01
申请号：US18096741
申请日：2023-01-13
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Srinath Gundavelli , Amine Choukir , Domenico Ficara , Jerome Henry , Jean-Philippe Vasseur , Patrick Wetterwald , Eric Levy-Abegnoli
Abstract: In one embodiment, a supervisory device in a network notifies, via an access point of the network, a node as to an ability of the network to support virtual access points. The supervisory device receives, in response to notifying the node, information from the node regarding characteristics of the node. The supervisory device selects, based on the characteristics of the node, a plurality of access points in the network to form a virtual access point with which the node may communicate. The supervisory device configures the plurality of access points to function as the virtual access point, wherein the node communicates with the network via the virtual access point.
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