公开(公告)号：US20200322281A1

公开(公告)日：2020-10-08

申请号：US16376617

申请日：2019-04-05

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jerome Henry ,  Robert E. Barton

IPC: H04L12/875 ,  H04L12/841 ,  H04L12/863 ,  H04L12/935 ,  H04L12/931 ,  H04L12/861 ,  H04L12/26 ,  H04L12/825

Abstract: Telemetry for cloud switches queuing excursion may be provided. A first hysteresis threshold and a second hysteresis threshold for a queue of the network switch may be specified. Next, a queue position relative to the first hysteresis threshold and the second hysteresis threshold may be determined for each incoming packets for the queue. A number of crossings including the queue position passing the first hysteresis threshold and subsequently passing the second hysteresis threshold in a first predetermined time period may be determined. A number of data packets being sent to the queue of the network switch may then be altered based on one or more of the number of crossings, the first hysteresis threshold, and the second hysteresis threshold.

公开(公告)号：US20200314841A1

公开(公告)日：2020-10-01

申请号：US16363285

申请日：2019-03-25

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jp Vasseur ,  Eric Levy-Abegnoli ,  Patrick Wetterwald

IPC: H04W72/04 ,  H04W56/00 ,  H04W72/12 ,  H04W40/02

Abstract: Disclosed are systems, methods, and computer-readable media for integrating deterministic packet transmissions scheduling of short range local area networks (e.g., 6TiSCH networks) with deterministic packet transmission scheduling for wireless networks such as LTE/4G/5G networks. In one aspect, a wireless communication network includes a plurality of first nodes configured to communicate using a first communication protocol; and a second node configured to communicate with the plurality of first nodes using the first communication protocol and configured to communicate with a third node using a second communication protocol, the second node being further configured to map corresponding transmission schedule of the first communication protocol to a second transmission schedule for the second communication protocol.

公开(公告)号：US10785701B2

公开(公告)日：2020-09-22

申请号：US16188627

申请日：2018-11-13

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Pascal Thubert ,  Carlos M. Pignataro

IPC: H04W40/26 ,  H04L12/715 ,  H04L12/753 ,  H04L12/707 ,  H04W40/04 ,  H04W40/34 ,  H04L12/741

Abstract: In one embodiment, a method is performed. A fat tree route miner (FT-RM) entity may be used to establish a control plane session with a first spine node in communication with a network. The FT-RM entity may identify a prefix that is unreachable by the first spine node. The FT-RM entity may instruct a spine node to disaggregate the prefix.

公开(公告)号：US10783436B2

公开(公告)日：2020-09-22

申请号：US15374599

申请日：2016-12-09

Applicant: Cisco Technology, Inc.

Inventor： Joseph T. Friel ,  Andre Surcouf ,  Hugo Mike Latapie ,  Enzo Fenoglio ,  Pascal Thubert

IPC: G06N3/08 ,  G06N3/04 ,  G06N3/02 ,  G06F9/46

Abstract: In one embodiment, a method includes training a deep neural network using a first set of network characteristics corresponding to a first time and a second set of network characteristics corresponding to a second time, generating, using the deep neural network, a predictive set of network characteristics corresponding to a future time, and assigning a task of a distributed application to a processing unit based on the predictive set of network characteristics.

公开(公告)号：US10750495B2

公开(公告)日：2020-08-18

申请号：US16107759

申请日：2018-08-21

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Jean-Philippe Vasseur ,  Eric Michel Levy-Abegnoli

IPC: H04W4/00 ,  H04W72/04 ,  H04W84/22 ,  H04W84/00

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.

公开(公告)号：US10749786B2

公开(公告)日：2020-08-18

申请号：US15446705

申请日：2017-03-01

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Patrick Wetterwald ,  Jean-Philippe Vasseur ,  Eric Michel Levy-Abegnoli

IPC: H04L12/751 ,  H04L12/717 ,  H04L12/947

Abstract: In one embodiment, a method comprises identifying, by a path computation element, essential parent devices from a nonstoring destination oriented directed acyclic graph (DODAG) topology as dominating set members belonging to a dominating set; receiving, by the path computation element, an advertisement message specifying a first dominating set member having reachability to a second dominating set member, the reachability distinct from the nonstoring DODAG topology; and generating, by the path computation element based on the advertisement message, an optimized path for reaching a destination network device in the nonstoring DODAG topology via a selected sequence of dominating set members, the optimized path providing cut-through optimization across the nonstoring DODAG topology.

公开(公告)号：US20200252333A1

公开(公告)日：2020-08-06

申请号：US16268953

申请日：2019-02-06

Applicant: Cisco Technology, Inc.

Inventor： Mankamana Prasad Mishra ,  Pascal Thubert ,  IJsbrand Wijnands ,  Krishnaswamy Ananthamurthy ,  Ramakrishnan Chokkanathapuram Sundaram ,  Stig Ingvar Venaas

IPC: H04L12/721 ,  H04L12/761 ,  H04L12/753 ,  H04L12/755 ,  H04L12/749

Abstract: In one illustrative example, a network node connected in a network fabric may identify that it is established as part of a multicast distribution tree for forwarding multicast traffic from a source node to one or more host receiver devices of a multicast group. In response, the network node may propagate in the network fabric a message for advertising the network node as a candidate local source node at which to join the multicast group. The message for advertising may include data such as a reachability metric. The propagation of the message may be part of a flooding of such messages in the network fabric. The network node serving as the candidate local source node may thereafter “locally” join a host receiver device in the multicast group at the network node so that the device may receive the multicast traffic from the source node via the network node.

公开(公告)号：US10725948B2

公开(公告)日：2020-07-28

申请号：US16163528

申请日：2018-10-17

Applicant: Cisco Technology, Inc.

Inventor： Pascal Thubert ,  Jerome Henry

IPC: G06F13/28 ,  H04W74/08 ,  G06F15/173

Abstract: A wireless device can achieve higher predictability for its transmissions by inserting a placeholder frame in a transmission queue before RoCE data has been received. In addition, a contention countdown associated with the placeholder frame can start before the RoCE data is ready for transmission. Once the RoCE data is available, the device can insert the data into the payload of the placeholder frame, thereby reducing the wait time before the RoCE data can be transmitted wirelessly. Additionally, the device can improve reliability by transmitting RoCE data using multiple subcarrier RUs in a channel. The data blocks and the duplicative data can be transmitted in parallel using the subcarrier RUs. If a subset of the subcarrier RUs are blocked because of narrowband interference, the receiving device can nonetheless recover the data blocks and reconstruct the RoCe packet from the data transported on the RUs that did not have interference.

公开(公告)号：US10693671B2

公开(公告)日：2020-06-23

申请号：US15845170

申请日：2017-12-18

Applicant: Cisco Technology, Inc.

Inventor： Eric Levy-Abegnoli ,  Patrick Wetterwald ,  Pascal Thubert ,  Jean-Philippe Vasseur

IPC: H04L12/18 ,  H04L12/761 ,  H04L12/715 ,  H04L12/46

Abstract: In one embodiment, a cloud-based service instructs one or more networking devices in a local area network (LAN) to form a virtual network overlay in the LAN that redirects traffic associated with a particular node in the LAN to the service. The service receives multicast or broadcast traffic sent by the particular node in the LAN and redirected to the service via the virtual network overlay. The service identifies a group of nodes in the network that are to receive the traffic sent by the particular node, based in part by profiling the traffic associated with the particular node. The service sends the traffic sent by the particular node to at least one networking device in the LAN with an indication of the identified group of nodes in the network that are to receive the traffic sent by the particular node. The at least one networking device forwards the traffic sent by the particular node to the nodes in the identified group.

公开(公告)号：US10686695B1

公开(公告)日：2020-06-16

申请号：US16296896

申请日：2019-03-08

Applicant: Cisco Technology, Inc.

Inventor： Nagendra Kumar Nainar ,  Pascal Thubert ,  Carlos M. Pignataro

IPC: H04L12/703 ,  H04L12/24 ,  H04L12/741 ,  H04L12/753 ,  H04L12/745

Abstract: The present disclosure provides a proactive method of prefix disaggregation in a network fabric when one or more communication failures are detected. In one aspect, a method includes determining, by a first node of a network fabric, a corresponding prefix disaggregation policy for at least one second node of the network fabric, the corresponding prefix disaggregation policy identifying one or more network prefixes that are inaccessible via the first node when at least one communication failure is detected in association with the first node; sending the corresponding prefix disaggregation policy to the second node; and causing the second node to implement the prefix disaggregation policy upon detecting the at least one communication failure.