公开(公告)号：US11522787B1

公开(公告)日：2022-12-06

申请号：US17538214

申请日：2021-11-30

Applicant: Cisco Technology, Inc.

Inventor： Vinay Kumar Kolar ,  Jean-Philippe Vasseur

IPC: G06F15/16 ,  H04L45/12 ,  H04L45/00 ,  H04L43/0864 ,  H04L45/302 ,  H04L43/087 ,  H04L45/42

Abstract: In one embodiment, a device detects oscillations in a path metric for a network path between violating a service level agreement for an online application and not violating the service level agreement for the online application. The device classifies the oscillations as near-boundary or wild, based on degrees to which the path metric violated a threshold of the service level agreement. The device provides data regarding the oscillations to a user interface that includes an indication as to whether the oscillations are near-boundary or wild. The device adjusts the threshold of the service level agreement based in part on feedback from the user interface, when the oscillations are near-boundary.

公开(公告)号：US20220360502A1

公开(公告)日：2022-11-10

申请号：US17873414

申请日：2022-07-26

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Grégory Mermoud ,  Pierre-André Savalle ,  Vinay Kumar Kolar

IPC: H04L41/5003 ,  G06N20/00 ,  H04L41/147 ,  H04L41/142 ,  H04L41/0896

Abstract: In one embodiment, a service in a network computes an expected information gain associated with rerouting traffic from a first tunnel onto a backup tunnel in the network. The service initiates, based on the expected information gain, rerouting of the traffic from the first tunnel onto the backup tunnel. The service obtains performance measurements for the traffic rerouted onto the backup tunnel. The service uses the performance measurements to train a machine learning model to predict whether rerouting traffic from the first tunnel onto the backup tunnel will satisfy a service level agreement (SLA) of the traffic.

公开(公告)号：US11451945B2

公开(公告)日：2022-09-20

申请号：US16820843

申请日：2020-03-17

Applicant: Cisco Technology, Inc.

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

IPC: H04W48/20 ,  H04W4/70 ,  H04W48/18 ,  H04W24/02 ,  H04W88/12 ,  H04W88/08

Abstract: In one embodiment, a supervisory device in a network forms a virtual access point (VAP) for a node in the network. A set of access points (APs) in the network are mapped to the VAP as part of a VAP mapping and the node treats the APs in the VAP mapping as a single AP for purposes of communicating with the network. The supervisory device receives measurements from the APs in the VAP mapping regarding communications associated with the node. The supervisory device identifies a movement of the node based on the received measurements from the APs in the VAP mapping. The supervisory device adjusts the set of APs in the VAP mapping based on the identified movement of the node.

公开(公告)号：US20220294725A1

公开(公告)日：2022-09-15

申请号：US17196128

申请日：2021-03-09

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Grégory Mermoud ,  Vinay Kumar Kolar ,  Pierre-André Savalle

IPC: H04L12/715 ,  H04L12/717 ,  H04L12/721 ,  H04L12/725 ,  H04L12/46 ,  H04L12/26

Abstract: In one embodiment, a controller obtains data indicative of an application experience metric for an online application having application traffic conveyed via the network. The controller predicts the application experience metric that would result from a first edge router conveying its application traffic to the online application via a second edge router that is not currently connected to the first edge router via a tunnel, based on the obtained data. The controller makes a determination that the first edge router should route its application traffic to the online application via a tunnel between the first edge router and the second edge router, based on the predicted application experience metric. The controller causes a tunnel to be established in the network between the first edge router and the second edge router, whereby the first edge router routes its application traffic to the online application via the second edge router.

公开(公告)号：US20220286388A1

公开(公告)日：2022-09-08

申请号：US17191233

申请日：2021-03-03

Applicant: Cisco Technology, Inc.

Inventor： Grégory Mermoud ,  Jean-Philippe Vasseur ,  Pierre-André Savalle ,  Vinay Kumar Kolar

IPC: H04L12/721 ,  H04L12/715

Abstract: In one embodiment, a device obtains routing forecasts for a software defined network. The device splits a particular routing policy for the software defined network into two or more routing policies, based on the routing forecasts. The device makes an evaluation as to whether the two or more routing policies should be reverted back into the particular routing policy. The device sends, to a user interface, data indicative of the particular routing policy that was split into the two or more routing policies and the evaluation as to whether the two or more routing policies should be reverted back into the particular routing policy.

公开(公告)号：US11425048B2

公开(公告)日：2022-08-23

申请号：US17122711

申请日：2020-12-15

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Grégory Mermoud ,  David Tedaldi ,  Vinay Kumar Kolar

IPC: H04L47/00 ,  H04L47/24 ,  H04L47/25

Abstract: In one embodiment, a device calculates one or more distributions of bitrates associated with an application whose traffic is conveyed via one or more paths in a network. The device detects throughput modes of the application, based on the one or more distributions of bitrates associated with the application. The device associates each throughput mode with a quality of experience label, to form a plurality of pairs of throughput modes and quality of experience labels. The device estimates a quality of experience metric for the application, based on a bitrate of the application and the plurality of pairs of throughput modes and quality of experience labels.

公开(公告)号：US11409516B2

公开(公告)日：2022-08-09

申请号：US16709307

申请日：2019-12-10

Applicant: Cisco Technology, Inc.

Inventor： Vinay Kumar Kolar ,  Jean-Philippe Vasseur ,  Grégory Mermoud ,  Pierre-Andre Savalle

IPC: G06F9/44 ,  G06F8/71 ,  H04L43/00 ,  G06N20/00

Abstract: In one embodiment, a service receives software version data regarding versions of software executed by devices in a network. The service detects a version change in the version of software executed by one or more of the devices, based on the received software version data. The service makes a determination that a drop in data quality of input data for a machine learning model used to monitor the network is associated with the detected version change. The service reverts the one or more devices to a prior version of software, based on the determination that the drop in quality of the input data for the machine learning model used to monitor the network is associated with the detected version change.

公开(公告)号：US20220231939A1

公开(公告)日：2022-07-21

申请号：US17153561

申请日：2021-01-20

Applicant: Cisco Technology, Inc.

Inventor： Grégory Mermoud ,  Jean-Philippe Vasseur ,  Vinay Kumar Kolar ,  David Tedaldi

IPC: H04L12/707 ,  H04L12/851

Abstract: In one embodiment, a device obtains traffic telemetry data regarding a first path in a network and an alternate path in the network. The device predicts, based on the traffic telemetry data, an amount of traffic for an application that is expected at a particular time. The device makes, based on the traffic telemetry data and on the amount of traffic for the application that is predicted to be expected at the particular time, a counterfactual prediction as to whether the alternate path would violate a service level agreement associated with the traffic, should the traffic be routed via the alternate path at the particular time. The device causes, based on the counterfactual prediction, the traffic for the application to be rerouted from the first path in the network to the alternate path, prior to the particular time.

公开(公告)号：US11388042B2

公开(公告)日：2022-07-12

申请号：US16991393

申请日：2020-08-12

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Grégory Mermoud ,  Vinay Kumar Kolar

IPC: H04L43/08 ,  H04L41/0654 ,  H04L41/14

Abstract: In one embodiment, a device forms a telemetry cluster by applying clustering to telemetry data regarding a plurality of network connections over an access network between a plurality of entities and a remote application. The device applies anomaly detection to the telemetry cluster, to identify one or more anomalies. The device makes a determination as to whether the one or more anomalies are attributable to the remote application or to the access network. The device initiates a corrective measure, based on the determination as to whether the one or more anomalies are attributable to the remote application or to the access network.

公开(公告)号：US11381640B2

公开(公告)日：2022-07-05

申请号：US16875182

申请日：2020-05-15

Applicant: Cisco Technology, Inc.

Inventor： Pierre-André Savalle ,  Jean-Philippe Vasseur ,  Grégory Mermoud ,  Vinay Kumar Kolar

IPC: G06F15/173 ,  H04L67/104 ,  H04L41/142 ,  H04L41/5025

Abstract: In one embodiment, a network assurance service that monitors one or more networks identifies changes in a key performance indicator for each of a plurality of network entities in the one or more networks. The service forms a peer group of network entities from the plurality of network entities whose changes in the key performance indicator are correlated. The service monitors the key performance indicator for network entities in the peer group of network entities. The service, based on the monitoring, detects an anomalous change in the key performance indicator for a particular network entity in the peer group of network entities relative to other network entities in the peer group of network entities.