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公开(公告)号：US09859970B2
公开(公告)日：2018-01-02
申请号：US14642066
申请日：2015-03-09
Applicant: Cisco Technology, Inc.
CPC classification number: H04B7/15507 , H04L1/00 , H04L1/1864 , H04L1/1887 , H04W72/0446 , H04W84/18 , H04W84/20
Abstract: In one embodiment, a method comprises receiving, by a parent network device in a wireless deterministic network, a retransmit capabilities message from a first child device attached to the parent network device, the retransmit capabilities message specifying that the first child device can detect a data packet transmission to the parent network device by a second child device attached to the parent network device and that is a peer of the first child device; and allocating, by the parent network device, a peer retransmit timeslot to the first child device from within a channel distribution chunk appropriated by the parent network device, the peer retransmit timeslot enabling the first child device to retransmit a data packet on behalf of the second child device to the parent network device.
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公开(公告)号：US09853883B2
公开(公告)日：2017-12-26
申请号：US14707117
申请日：2015-05-08
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Eric Levy-Abegnoli , Patrick Wetterwald , Jean-Philippe Vasseur
IPC: H04L12/28 , H04L12/707 , H04L12/933 , H04L12/741 , H04L12/751 , H04L12/801 , H04W40/02 , H04W84/18 , H04W36/00
CPC classification number: H04L45/22 , H04L45/02 , H04L45/74 , H04L47/34 , H04L49/1584 , H04W36/0011 , H04W40/02 , H04W84/18
Abstract: In one embodiment, a device in a network receives a notification from a neighbor of the device indicative of a child node of the device requesting a parent change from the device to the neighbor. The device updates an existing routing path from the device to the child node to be routed through the neighbor, in response to receiving the notification from the neighbor. The device receives an instruction to remove the updated routing path from the device to the child node through the neighbor. The device removes the updated routing path from the device to the child node, in response to receiving the instruction to remove the updated routing path.
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公开(公告)号：US09838352B2
公开(公告)日：2017-12-05
申请号：US14716927
申请日：2015-05-20
Applicant: Cisco Technology, Inc.
Inventor： Patrick Wetterwald , Eric Michel Levy-Abegnoli , Pascal Thubert
IPC: H04L29/12
CPC classification number: H04L61/103 , H04L61/6022
Abstract: In one embodiment, a method comprises detecting, by a network device, an endpoint device attempting to access a data network via a data link; and generating, by the network device, a unique device signature for identifying the endpoint device based on the network device identifying a sequence of link layer data packets transmitted by the endpoint device upon connection to the data link, the unique device signature identifying a behavior of the endpoint device independent of any link layer address used by the endpoint device.
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公开(公告)号：US20170295141A1
公开(公告)日：2017-10-12
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
CPC classification number: H04L63/0272 , H04L63/0209 , H04L67/12
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.
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公开(公告)号：US09749410B2
公开(公告)日：2017-08-29
申请号：US14661458
申请日：2015-03-18
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Ijsbrand Wijnands , Gregory Shepherd
IPC: H04L12/24 , H04L12/741 , H04L12/751 , H04L29/08 , G06F17/30 , H04L29/12 , H04W40/02 , H04W84/18 , H04L12/753
CPC classification number: H04L67/1095 , G06F17/30324 , G06F17/30958 , H04L45/02 , H04L45/18 , H04L45/34 , H04L45/48 , H04L45/74 , H04L45/745 , H04L61/2038 , H04L61/6004 , H04W40/02 , H04W40/24 , H04W40/30 , H04W84/18 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/22 , Y02D70/30
Abstract: In one embodiment, a first node in a network receives one or more bitmaps from one or more child nodes of the first node according to a directed acyclic graph (DAG). Each of the one or more child nodes is associated with a corresponding unique bit position in the one or more bitmaps. The first node stores, in a forwarding table, the one or more bitmaps received from the one or more child nodes of the first node. The first node receives a message that includes a destination bitmap that identifies one or more destinations of the message via one or more set bits at bit positions associated with the one or more child nodes. The first node forwards the message towards the identified one or more destinations based on the destination bitmap and the one or more bitmaps stored in the forwarding table of the first node.
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Patent Agency Ranking
公开(公告)号：US20170149639A1
公开(公告)日：2017-05-25
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
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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477.发明授权公开(公告)号：US09654502B2
公开(公告)日：2017-05-16
申请号：US14666717
申请日：2015-03-24
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Eric Levy-Abegnoli , Vincent J. Ribiere
IPC: G06F7/04 , H04L29/06 , H04L12/747 , H04L29/12 , G06F21/10
CPC classification number: H04L63/1458 , G06F21/10 , H04L45/742 , H04L61/103 , H04L61/6009 , H04L61/6059 , H04L2463/142
Abstract: In one embodiment, a device (e.g., switch or registry) maintains a binding table for all internet protocol (IP) addresses in a particular subnet associated with the device, and in response to receiving a neighbor solicitation (NS) lookup message from a router for a particular address, determines whether the particular address is within the binding table. When the particular address is not within the binding table, the device causes the router to not store the particular address in a neighbor discovery (ND) cache at the router (e.g., by responding to clear the cache, or ignoring to prevent state from being created). In another embodiment, the ND-requesting router ensures that the particular address is not kept in an ND cache at the router in response to the device indicating that the particular address is not within its binding table (e.g., an explicit response to clear, or absence of instruction to store state).
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公开(公告)号：US20170099226A1
公开(公告)日：2017-04-06
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
CPC classification number: H04L47/2425 , H04L47/826
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.
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公开(公告)号：US09608912B2
公开(公告)日：2017-03-28
申请号：US14071585
申请日：2013-11-04
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Jean-Philippe Vasseur , Vincent Jean Ribiere
IPC: H04L12/803 , H04L12/735 , H04L12/707 , H04L12/715 , H04W40/28
CPC classification number: H04L47/125 , H04L45/128 , H04L45/22 , H04L45/64 , H04W40/28
Abstract: In one embodiment, a reactive routing computer network may be partitioned into diverse logical topologies, and a source node may transmit route request (RREQ) messages toward a destination node on each logical topology. In response, the source node may receive route reply (RREP) messages indicating routes to the destination node in each logical topology. The source node may thus select a route for each logical topology to reach the destination node, accordingly. In another embodiment, if partitioned logical topologies do not produce two or more routes or as a standalone embodiment, the source node may transmit RREQ messages toward the destination node without any corresponding logical topology. The destination node receives RREQ messages, and two or more routes from the source node to the destination node may be determined (e.g., by the destination or source node) based on the received RREQ messages at the destination node and path selection criteria.
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480.发明授权Distributed appropriation and defense of time slot ownership in a channel hopping schedule 有权在频道跳频计划中分配占用和防御时隙所有权公开(公告)号：US09590692B2
公开(公告)日：2017-03-07
申请号：US14336226
申请日：2014-07-21
Applicant: Cisco Technology, Inc.
Inventor： Pascal Thubert , Jean-Philippe Vasseur , Patrick Wetterwald
Abstract: In one embodiment, a device in a network receives an indication of an appropriation and defense time slot for a set of time slots in a channel hopping schedule. The device appropriates ownership of the set of time slots using an appropriation window of the appropriation and defense time slot. The device receives an appropriation request from a second device during the appropriation window. In response to receiving the appropriation request, the device sends a defense notification during a defense window of the appropriation and defense time slot.
Abstract translation: 在一个实施例中，网络中的设备接收信道跳频调度中的一组时隙的占用和防御时隙的指示。 该设备使用专用和防御时隙的拨款窗口来占用该组时隙的所有权。 设备在拨款窗口期间从第二个设备接收到拨款请求。 响应收到拨款请求，设备在拨号和防御时隙的防范窗口发送防御通知。
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