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公开(公告)号：US20200084135A1
公开(公告)日：2020-03-12
申请号：US16126859
申请日：2018-09-10
Applicant: Cisco Technology, Inc.
IPC: H04L12/751 , H04L12/707 , H04L12/761 , H04L12/703 , H04L12/721 , H04L12/933 , H04L12/46
Abstract: In one embodiment, a method comprises generating a switched link layer topology from a source device to a destination device, the switched link layer topology comprising a first sequence of switching devices, a second sequence of switching devices, and one or more bridging links between the first and second sequences of switching devices; generating first and second chains of resilient link layer segments for respective first and second multi-hop link layer connections based on generating a sequence of link layer loops overlying the switched link layer topology, and setting for each of the first and second multi-hop link layer connections a corresponding set of connection blocks in each link layer loop; and causing replication of a data packet across the first and second multi-hop link layer connections, enabling a failure in the switched link layer topology to be bypassed based on removing at least one of the connection blocks.
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公开(公告)号：US20190028575A1
公开(公告)日：2019-01-24
申请号：US15657283
申请日：2017-07-24
Applicant: Cisco Technology, Inc.
IPC: H04L29/06 , H04L12/935 , H04L12/721
Abstract: In one embodiment, a method comprises: a first network device in a deterministic network identifying at least one of first and second deterministic transmit opportunities for transmission of a data packet toward a destination device along a deterministic path of the deterministic network, the first deterministic transmit opportunity reserved for the first network device deterministically receiving the data packet from a second network device and the second deterministic transmit opportunity reserved for deterministic transmission by the first network device of the data packet toward the destination device along the deterministic path; the first network device detecting an absence of receiving the data packet from the second network device according to the first deterministic transmit opportunity; and the first network device selectively generating and deterministically transmitting according to the second deterministic transmit opportunity, in response to the absence of receiving the data packet, a management packet along the deterministic path.
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公开(公告)号：US20180287422A1
公开(公告)日：2018-10-04
申请号：US15475499
申请日：2017-03-31
Applicant: Cisco Technology, Inc.
Inventor： MAIK GUENTER SEEWALD , PATRICK WETTERWALD
IPC: H02J13/00 , H04L12/24 , H04L12/707 , H02J3/00 , G05B13/04
CPC classification number: H02J13/0062 , G05B17/02 , G06Q50/06 , H02J3/00 , H02J13/0079 , H02J13/0086 , H02J2003/007 , H04L41/12 , H04L41/20 , H04L45/22 , H04L45/64
Abstract: In one embodiment, a method comprises a topology processor generating a power grid topology model of a power grid topology controlled via a communications network having a corresponding communications architecture overlying the power grid topology. The topology processor generates a communications architecture model of the communications architecture. In response to receiving a request for executing a change in at least a portion of the power grid topology, the topology processor identifies power grid topology model data associated with the portion of the power grid topology, and identifies communications architecture model data identifying a corresponding portion of the communications architecture associated with the portion of the power grid topology. The topology processor selectively executes the request based on sending, to a network controller, a query to determine whether the communications architecture can implement the change, the query identifying the power grid topology model data and the corresponding communications architecture model data.
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公开(公告)号：US20180070379A1
公开(公告)日：2018-03-08
申请号：US15258484
申请日：2016-09-07
Applicant: Cisco Technology, Inc.
IPC: H04W74/08 , H04L12/761 , H04L1/18 , H04W52/02
CPC classification number: H04W40/125 , H04L1/189 , H04L45/16 , H04W24/02 , H04W28/021 , H04W28/06 , H04W52/0203 , H04W74/085
Abstract: In one embodiment, a method comprises: receiving, by a network device in a data network, a wireless data packet containing new data; responding to the wireless data packet, by the network device, by initiating a prescribed randomized collision avoidance method requiring the network device to first wait at least a first half of a prescribed minimum contention interval before attempting transmission at a randomized position within a second half of the prescribed minimum contention interval; selectively retransmitting, by the network device, the wireless data packet based on determining, at the randomized position, that the network device has not received a prescribed number of copies of the wireless data packet; and selectively sending, by the network device to a path computation element in the data network, a message requesting membership in a dominating set in response to transmission of the wireless data packet by the network device.
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公开(公告)号：US20170289847A1
公开(公告)日：2017-10-05
申请号：US15089731
申请日：2016-04-04
Applicant: Cisco Technology, Inc.
CPC classification number: H04W28/08 , H04L5/0055 , H04W52/0203 , Y02D70/00 , Y02D70/144 , Y02D70/22
Abstract: In one embodiment, a method comprises a first wireless network device identifying a deterministic receive slot reserved for reception of a first data packet from a second wireless network device along a deterministic track in a deterministic network; the first wireless network device transmitting an acknowledgement in the deterministic receive slot, to the second wireless network device, in response to successful reception of the first data packet in the deterministic receive slot; the first network device transmitting a second data packet in the deterministic receive slot, following the acknowledgement, to the second network device.
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Patent Agency Ranking
16.发明申请PARENT DEVICE ALLOCATION OF RETRANSMIT SLOT TO CHILD NETWORK DEVICE ON BEHALF OF PEER CHILD DEVICE IN A DETERMINISTIC NETWORK 有权儿童网络设备在确定性网络中的同龄儿童设备上的重新设计分配公开(公告)号：US20160269096A1
公开(公告)日：2016-09-15
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.
Abstract translation: 在一个实施例中，一种方法包括由无线确定性网络中的父网络设备从附加到父网络设备的第一子设备接收重传能力消息，所述重传能力消息指定第一子设备可以检测数据 分组由连接到所述父网络设备并且是所述第一子设备的对等体的第二子设备传送到所述父网络设备; 以及由所述父网络设备从所述父网络设备专用的信道分发块内将所述对等体重传时隙分配给所述第一子设备，所述对等体重传时隙使得所述第一子设备能够代表所述第二子设备重传数据分组 子设备到父网络设备。
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17.发明申请ADDRESS AUTOCONFIGURATION USING BLOOM FILTER PARAMETERS FOR UNIQUE ADDRESS COMPUTATION 有权使用BLOOM过滤器参数进行地址自动配置，用于独特的地址计算公开(公告)号：US20160112254A1
公开(公告)日：2016-04-21
申请号：US14516799
申请日：2014-10-17
Applicant: Cisco Technology, Inc.
Inventor： ERIC MICHEL LEVY-ABEGNOLI , PASCAL THUBERT , PATRICK WETTERWALD
CPC classification number: H04L41/0803 , H04L43/10 , H04L45/7453 , H04L61/2092 , H04L61/6059
Abstract: In one embodiment, a method comprises generating, by a network device, a Bloom filter bit vector based on applying Bloom filter parameters to a candidate address autoconfigured by the network device; and selectively repeating, by the network device, the autoconfiguring of the candidate address until the corresponding Bloom filter bit vector includes a bit set at a reserved bit vector position that is reserved for the network device, the reserved bit vector position providing uniqueness of the candidate address within a link layer domain.
Abstract translation: 在一个实施例中，一种方法包括由网络设备根据将布隆过滤器参数应用于由网络设备自动配置的候选地址来生成布隆过滤器比特向量; 并且由所述网络设备选择性地重复所述候选地址的自动配置，直到所述对应的Bloom过滤器比特向量包括在为所述网络设备保留的保留比特向量位置设置的比特，所述保留位向量位置提供所述候选者的唯一性 链路层域内的地址。
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18.发明申请公开(公告)号：US20220385414A1
公开(公告)日：2022-12-01
申请号：US17331403
申请日：2021-05-26
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , JEROME HENRY , MALCOLM MUIR SMITH , MARK GRAYSON , PATRICK WETTERWALD , ANDREW FREDERICK MYLES
Abstract: In one embodiment, a method comprises: classifying, by a controller device, a first access point device in a WLAN as a leader access point for a wireless client device, and at least a second access point device as a follower access point; and allocating, to the leader access point, a shortened medium access control layer timer (“timer”) that is shorter than a prescribed timer used by the follower access point, the shortened timer causing the leader access point to respond to reception of a wireless data packet from the wireless client device by transmitting an acknowledgment to the wireless client device upon expiration of the shortened timer; the prescribed timer causing the follower access point to defer to the leader access point based on the follower access point waiting for at least expiration of the prescribed timer before selectively transmitting a corresponding acknowledgment in response to receiving the wireless data packet.
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19.发明申请公开(公告)号：US20210306908A1
公开(公告)日：2021-09-30
申请号：US17347640
申请日：2021-06-15
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , PATRICK WETTERWALD , ERIC MICHEL LEVY-ABEGNOLI
IPC: H04W28/02 , H04L12/931
Abstract: In one embodiment, a method comprises: determining, by a network switching device, whether the network switching device is configured as one of multiple leaf network switching devices, one of multiple Top-of-Fabric (ToF) switching devices, or one of multiple intermediate switching devices in a switched data network having a leaf-spine switching architecture; if configured as a leaf switching device, limiting flooding of an advertisement only to a subset of the intermediate switching devices in response to detecting a mobile destination is reachable; if configured as an intermediate switching device, flooding the advertisement, received from any one of the leaf network switching devices, to connected ToF switching devices without installing any routing information specified within the advertisement; if configured as a ToF switching device, installing from the flooded advertisement the routing information and tunneling a data packet, destined for the mobile destination, to the leaf switching device having transmitted the advertisement.
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公开(公告)号：US20200382432A1
公开(公告)日：2020-12-03
申请号：US16998793
申请日：2020-08-20
Applicant: Cisco Technology, Inc.
IPC: H04L12/841 , H04L12/801 , H04L12/851 , H04L12/875 , H04L12/861 , H04L12/727
Abstract: In one embodiment, a method comprises receiving, by a transport layer executed by a processor circuit in an apparatus, an identifiable grouping of data; storing, by the transport layer, the data as transport layer packets in a buffer circuit in the apparatus, the storing including inserting into each transport layer packet a grouping identifier that identifies the transport layer packets as belonging to the identifiable grouping; and causing, by the transport layer, a plurality of transmitting deterministic network interface circuits to deterministically retrieve the transport layer packets from the buffer circuit for deterministic transmission across respective deterministic links, the grouping identifier enabling receiving deterministic network interface circuits to group the received transport layer packets, regardless of deterministic link, into a single processing group for a next receiving transport layer.
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