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31.
公开(公告)号:US11706130B2
公开(公告)日:2023-07-18
申请号:US17379252
申请日:2021-07-19
Applicant: Cisco Technology, Inc.
Inventor: Vinay Kumar Kolar , Jean-Philippe Vasseur , Grégory Mermoud , Pierre-André Savalle
IPC: H04L45/28 , H04L45/24 , H04L41/0631 , H04L45/302 , H04L45/02
CPC classification number: H04L45/28 , H04L41/0631 , H04L45/02 , H04L45/24 , H04L45/302
Abstract: In one embodiment, a device obtains user experience metrics for a plurality of sessions with an online application. The device detects a plurality of anomalies from among the user experience metrics. The device determines, based on a correlation between the plurality of anomalies, that a particular path entity is a root cause of the plurality of anomalies. The particular path entity comprises an egress service provider or data center of the online application. The device provides an indication of the particular path entity being the root cause of the plurality of anomalies.
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公开(公告)号:US20230171181A1
公开(公告)日:2023-06-01
申请号:US17538173
申请日:2021-11-30
Applicant: Cisco Technology, Inc.
Inventor: Jean-Philippe Vasseur , Vinay Kumar Kolar , Arnaud Quirin
IPC: H04L45/12 , H04L47/283 , H04L47/2425 , H04L45/64
CPC classification number: H04L45/124 , H04L47/283 , H04L47/2425 , H04L45/64
Abstract: In one embodiment, a device obtains telemetry data for a path in a network that is used to convey traffic associated with an online application. The device identifies, based on the telemetry data, oscillations of the path between a first state in which the path provides acceptable user experience for the online application and a second state in which the path does not provide acceptable user experience for the online application. The device determines a stability metric that quantifies the oscillations of the path. The device provides an indication of the oscillations of the path, based in part on the stability metric.
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公开(公告)号:US11552886B2
公开(公告)日:2023-01-10
申请号:US17196429
申请日:2021-03-09
Applicant: Cisco Technology, Inc.
Inventor: Jean-Philippe Vasseur , Grégory Mermoud , Vinay Kumar Kolar , Jürg Nicolaus Diemand
IPC: H04L45/00 , H04L41/5019 , H04L45/50 , H04L45/12 , H04L12/46 , H04L41/12 , H04L41/22 , H04L45/302
Abstract: In one embodiment, a controller for a network receives, via a user interface, a downgrade policy for the network that specifies an objective for path downgrades in the network. The controller identifies traffic of an application conveyed by an edge router in the network via a particular path in the network and using a first type of link. The controller predicts an effect of downgrading the particular path from using the first type of link to using a second type of link to convey the traffic of the application. The controller causes the edge router to convey the traffic of the application via the second type of link, when the effect predicted by the controller satisfies the objective specified by the downgrade policy.
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公开(公告)号:US11539673B2
公开(公告)日:2022-12-27
申请号:US17308238
申请日:2021-05-05
Applicant: Cisco Technology, Inc.
Inventor: Jean-Philippe Vasseur , Grégory Mermoud , Vinay Kumar Kolar , Pierre-André Savalle
Abstract: In one embodiment, a device obtains telemetry data that results from an edge router sending probes to a cloud-hosted application via a plurality of points of presence. The device makes, based on the telemetry data, predictions as to whether use of each of the plurality of points of presence by the edge router to access the cloud-hosted application will result in a violation of a service level agreement. The device selects, based on the predictions, a particular point of presence from among the plurality of points of presence that the edge router should use to access the cloud-hosted application during a time window. The device causes the edge router to access the cloud-hosted application via the particular point of presence during the time window.
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公开(公告)号:US11528218B2
公开(公告)日:2022-12-13
申请号:US17188287
申请日:2021-03-01
Applicant: Cisco Technology, Inc.
Inventor: Vinay Kumar Kolar , Jean-Philippe Vasseur , Grégory Mermoud , Pierre-André Savalle
IPC: H04L45/125 , H04L43/12 , H04L43/0882 , H04L43/50 , H04L67/02
Abstract: In one embodiment, a device identifies a set of probes configured between a first endpoint and a second endpoint serving an online application. Each probe has one or more characteristics and is associated with a different segment between the endpoints. The device selects a subset of the set whose associated segments are along a plurality of paths between the endpoints, based on a match between the online application and the one or more characteristics of probes in the set of probes. The device approximates a performance metric for each of the plurality of paths by aggregating performance metrics measured by probes in the subset of probes that are associated with segments of that path. The device causes traffic to be routed between the endpoints via a particular path in the plurality of paths, based on the performance metric of the particular path.
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公开(公告)号:US11496556B1
公开(公告)日:2022-11-08
申请号:US17240292
申请日:2021-04-26
Applicant: Cisco Technology, Inc.
Inventor: Vinay Kumar Kolar , Jean-Philippe Vasseur , Grégory Mermoud , Pierre-André Savalle
IPC: H04L67/1008 , H04L12/28 , H04L67/1021 , G06F9/50 , G06N20/00
Abstract: In one embodiment, a device receives application experience metrics for a software-as-a-service application. The device generates, based on the application experience metrics, a predictive model that predicts application experience scores for a plurality of network service providers that provide connectivity to the software-as-a-service application. The device selects a particular network service provider for use by a location, based on an application experience score predicted by the predictive model. The device sends an indication of the particular network service provider to the location.
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37.
公开(公告)号:US11456926B1
公开(公告)日:2022-09-27
申请号:US17314532
申请日:2021-05-07
Applicant: Cisco Technology, Inc.
Inventor: Grégory Mermoud , Jean-Philippe Vasseur , Vinay Kumar Kolar , Pierre-André Savalle
IPC: H04L41/16 , H04L41/5067 , H04L41/147 , H04L41/50
Abstract: In one embodiment, a supervisory service for a network obtains a first set of user experience survey data from users of an online application whose traffic was rerouted by a predictive routing engine. The supervisory service obtains a second set of user experience survey data from users of the online application whose traffic was not rerouted by the predictive routing engine. The supervisory service generates, using the first set of user experience survey data and the second set of user experience survey data, a user experience prediction model to predict user experience scores for the online application. The supervisory service adjusts the predictive routing engine using predicted user experience scores from the user experience prediction model.
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公开(公告)号:US11411838B2
公开(公告)日:2022-08-09
申请号:US16425093
申请日:2019-05-29
Applicant: Cisco Technology, Inc.
Inventor: Jean-Philippe Vasseur , Grégory Mermoud , Pierre-Andre Savalle , Vinay Kumar Kolar
IPC: H04L41/5003 , H04L41/147 , H04L41/142 , H04L41/0896 , G06N20/00
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.
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公开(公告)号:US11343171B2
公开(公告)日:2022-05-24
申请号:US16856399
申请日:2020-04-23
Applicant: Cisco Technology, Inc.
Inventor: Jean-Philippe Vasseur , Vinay Kumar Kolar
IPC: H04L12/707 , H04L45/00 , H04L47/80 , H04L47/70 , H04L45/302
Abstract: In one embodiment, a device in a network obtains tunnel flappiness metrics associated with a particular tunnel in the network exhibiting flapping. The device makes, based on the tunnel flappiness metrics, a prediction that the particular tunnel is going to flap. The prediction is made using a machine learning model. The device proactively reroutes, based on the prediction, traffic from the particular tunnel onto an alternate tunnel, prior to the particular tunnel flapping. The device evaluates performance of the alternate tunnel, after proactively rerouting the traffic from the particular tunnel onto the alternate tunnel.
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公开(公告)号:US20220060393A1
公开(公告)日:2022-02-24
申请号:US16997412
申请日:2020-08-19
Applicant: Cisco Technology, Inc.
Inventor: Jean-Philippe Vasseur , Grégory Mermoud , Vinay Kumar Kolar
IPC: H04L12/24 , H04L12/703 , H04L12/707 , H04L29/08
Abstract: In one embodiment, a networking device reroutes traffic in a network from a first path to a second path, based on a prediction that the first path will not satisfy a service level agreement associated with the traffic. The networking device enters a fast monitoring state during which the networking device performs fast probing of the first path and of the second path onto which the traffic was rerouted. The networking device makes, based on the fast probing, a determination as to whether the first path would have violated the service level agreement and whether the second path violates the service level agreement. The networking device enacts a routing decision for the traffic by applying a routing policy to the determination.
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