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公开(公告)号：US20230422023A1
公开(公告)日：2023-12-28
申请号：US17850094
申请日：2022-06-27
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , HUIMIN SHE , LI ZHAO
Abstract: In one embodiment, a method comprises: outputting, by a gateway device in a wireless data network comprising wireless network devices, a rule template for execution by any of the wireless network devices, the rule template comprising a device information variable for insertion of a device-specific value by a corresponding wireless network device executing the rule template, a context variable for insertion, by the wireless network devices, of a generic network context, and a compression rule specifying a compression operation and a corresponding decompression operation; and providing the generic network context to the wireless network devices, enabling each wireless network device to selectively execute the rule template, for execution of one of the compression operation on a network protocol data packet or the corresponding decompression operation for recovery of the network protocol data packet, based on the insertion of the corresponding device-specific value for the device information variable.
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公开(公告)号：US20230064808A1
公开(公告)日：2023-03-02
申请号：US17671712
申请日：2022-02-15
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , HUIMIN SHE , LI ZHAO , JEAN-PHILIPPE VASSEUR
IPC: H04W48/18 , H04W24/08 , H04W36/12 , H04L43/0876
Abstract: In one embodiment, a method comprises: first determining, by a controller, a target load for each of at least first and second wireless data networks rooted by respective first and second root network devices; second determining, by the controller, that at least a prescribed minimum number of network devices attached within the first wireless data network need to migrate from the first wireless data network to the second wireless data network based on the respective target loads; and causing, by the controller, the prescribed minimum number of network devices to migrate from the first wireless data network to the second wireless data network, based on the controller sending to the first and second root network devices enrollment priorities to be advertised by the first and second root network devices, respectively.
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3.发明申请公开(公告)号：US20210314290A1
公开(公告)日：2021-10-07
申请号：US16838252
申请日：2020-04-02
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , YINFANG WANG , HUIMIN SHE , FEILIANG WANG
Abstract: In one embodiment, a method comprises: receiving, by a root network device providing a DAG topology in a low power and lossy network (LLN), one or more multicast registration messages from an LLN device and identifying distinct properties of the LLN device; receiving, by the root network device, one or more multicast address group identifiers of one or more multicast streams to which the LLN device has subscribed, and associating the one or more multicast address group identifiers with the distinct properties; receiving a multicast message specifying one of the multicast address group identifiers; and generating, by the root network device, a directed multicast message having a multi-dimensional addressing data structure comprising a selected one of the distinct properties and the one multicast address group identifier, causing parent network devices in the DAG topology to selectively retransmit based on determining a child network device has the selected one distinct property.
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公开(公告)号：US20210211258A1
公开(公告)日：2021-07-08
申请号：US16747399
申请日：2020-01-20
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , ERIC MICHEL LEVY-ABEGNOLI
Abstract: In one embodiment, a method comprises: identifying, by a receiving network device, a deterministic schedule comprising allocated time slots, each allocated time slot allocated for the receiving network device receiving a data packet from one of a plurality of transmitting network devices in a wireless deterministic data network; and selectively transmitting, by the receiving network device, an expectation message at initiation of each of the allocated time slots, each expectation message preempting transmission by any other network device during the corresponding allocated time slot, each expectation message generated by the receiving network device and identifying a corresponding transmitting network device that is expected to deterministically transmit a corresponding expected data packet to the receiving network device during the corresponding allocated time slot; the expectation message causing the corresponding identified transmitting network device to transmit the corresponding expected data packet during the corresponding allocated time slot.
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5.发明申请公开(公告)号：US20200322951A1
公开(公告)日：2020-10-08
申请号：US16909811
申请日：2020-06-23
Applicant: Cisco Technology, Inc.
Abstract: In one embodiment, a method comprises determining a movable network device is moving along a repeatable sequence of access point devices in a deterministic network; and establishing a deterministic track along the repeatable sequence of access point devices, the deterministic track comprising insertion slots allocated for insertion of a data packet, by the movable network device, into the deterministic track via any one of the respective access point devices.
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Patent Agency Ranking
公开(公告)号：US20200014618A1
公开(公告)日：2020-01-09
申请号：US16026203
申请日：2018-07-03
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , JIANZHOU CHEN , HUIMIN SHE , PATRICK WETTERWALD
IPC: H04L12/703 , H04L12/751 , H04L12/26 , H04W28/02
Abstract: In one embodiment, a parent network device, operating according to a first Trickle operation using a first selected minimum contention interval, responds to detecting a loss of attached child network devices by starting a second Trickle operation using a second selected minimum contention interval. The second Trickle operation includes maintaining the second selected minimum contention interval for subsequent iterations of the second Trickle operation. The parent network device initiates an accelerated transmission rate of the advertisement message that is faster than the first and second Trickle operations (using a third selected minimum contention interval less than the first minimum contention interval) in response to receiving a message from one of the lost child network devices, and resumes the first Trickle operation upon recovery of all the lost child network devices.
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7.发明申请公开(公告)号：US20190097884A1
公开(公告)日：2019-03-28
申请号：US15713827
申请日：2017-09-25
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , PATRICK WETTERWALD , REKHA RAMACHANDRAN , ERIC MICHEL LEVY-ABEGNOLI
CPC classification number: H04L41/0813 , H04L41/0896 , H04L41/145 , H04L43/0864 , H04L43/087 , H04L43/16 , H04W24/08
Abstract: In one embodiment, a method comprises: receiving, by a switching device, one or more identified flows of data packets from first deterministic flows of a first deterministic segment in a first deterministic domain, the first deterministic segment established based on first deterministic attributes in the first deterministic domain; receiving, by the switching device, second deterministic attributes about second deterministic flows for a second deterministic segment in a second different deterministic domain, the second deterministic attributes different than the first deterministic attributes; and allocating, by the switching device based on the first deterministic attributes and the second deterministic attributes, at least a portion of the second deterministic flows for deterministic stitching of the one or more identified flows of data packets from the first deterministic segment in the first deterministic domain into the second deterministic segment in the second deterministic domain according to a guaranteed deterministic constraint.
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公开(公告)号：US20180152377A1
公开(公告)日：2018-05-31
申请号：US15361563
申请日：2016-11-28
Applicant: Cisco Technology, Inc.
Inventor： PATRICK WETTERWALD , PASCAL THUBERT , ERIC MICHEL LEVY-ABEGNOLI
IPC: H04L12/741 , H04L12/733 , H04L12/841
Abstract: In one embodiment, a method comprises receiving, by a network device in a deterministic data network, one or more deterministic schedules for reaching a destination network device along one or more deterministic paths in the deterministic data network; generating, by the network device, a deterministic source-route path for reaching the destination network device based on the deterministic schedules allocated for the deterministic paths, the deterministic source-route path comprising, for each specified hop, a corresponding deterministic start time; and outputting, by the network device, a source routed deterministic packet comprising the deterministic source-route path for deterministic forwarding of the source routed deterministic packet to the destination network device.
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公开(公告)号：US20180146413A1
公开(公告)日：2018-05-24
申请号：US15359739
申请日：2016-11-23
Applicant: Cisco Technology, Inc.
CPC classification number: H04L45/14 , H04L45/20 , H04L45/34 , H04L69/22 , H04W84/18 , Y02D70/00 , Y02D70/144
Abstract: In one embodiment, a method comprises promiscuously detecting, by a network device in a wireless data network, a wireless data packet comprising a source route header specifying a hop-by-hop path for reaching a destination device in the wireless data network; determining, by the network device, that the network device is identified in the hop-by-hop path as following a first next-hop device targeted for reception of the wireless data packet; and executing intercepted forwarding of the wireless data packet, by the network device, to a second next-hop device successively following the network device in the hop-by-hop path.
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公开(公告)号：US20170222920A1
公开(公告)日：2017-08-03
申请号：US15271811
申请日：2016-09-21
Applicant: Cisco Technology, Inc.
Inventor： PASCAL THUBERT , JEAN-PHILIPPE VASSEUR , PATRICK WETTERWALD , IJSBRAND WIJNANDS
IPC: H04L12/721 , H04L29/06
Abstract: In one embodiment, a method comprises receiving, by a network device in a deterministic data network comprising deterministic segments, a data packet comprising a packet header having a bit index, each bit in the bit index associated with a corresponding one of the deterministic segments; the network device identifying, from the bit index, a first bit for a corresponding first deterministic segment and a second bit for a corresponding second deterministic segment, wherein the network device is an endpoint for transmitting deterministic traffic into each of the first and second deterministic segments; the network device selectively executing a replication operation of the data packet for transmission of a replicated data packet into each of the first and second deterministic segments, based on the network device detecting the corresponding first and second bits set for replication.
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