公开(公告)号：US20170279832A1

公开(公告)日：2017-09-28

申请号：US15184252

申请日：2016-06-16

Applicant: Cisco Technology, Inc.

Inventor： Andrea Di Pietro ,  Jean-Philippe Vasseur

IPC: H04L29/06 ,  H04L29/12

CPC classification number: H04L63/1425 ,  H04L61/1511 ,  H04L61/25 ,  H04L63/0281 ,  H04L63/1416 ,  H04L63/1458 ,  H04L63/1466

Abstract: In one embodiment, a device in a network receives, from a supervisory device, trace information for one or more traffic flows associated with a particular anomaly. The device remaps network addresses in the trace information to addresses of one or more nodes in the network based on roles of the one or more nodes. The device mixes, using the remapped network addresses, the trace information with traffic information regarding one or more observed traffic flows in the network, to form a set of mixed traffic information. The device analyzes the mixed traffic information using an anomaly detection model. The device provides an indication of a result of the analysis of the mixed traffic information to the supervisory device.

公开(公告)号：US20170279698A1

公开(公告)日：2017-09-28

申请号：US15188175

申请日：2016-06-21

Applicant: Cisco Technology, Inc.

Inventor： Laurent Sartran ,  Pierre-André Savalle ,  Jean-Philippe Vasseur ,  Grégory Mermoud ,  Javier Cruz Mota ,  Sébastien Gay

IPC: H04L12/26

CPC classification number: H04L43/0876 ,  H04L41/142 ,  H04L41/147 ,  H04L41/16 ,  H04L43/028 ,  H04L43/0823 ,  H04L43/16

Abstract: In one embodiment, a device in a network determines cluster assignments that assign traffic data regarding traffic in the network to activity level clusters based on one or more measures of traffic activity in the traffic data. The device uses the cluster assignments to predict seasonal activity for a particular subset of the traffic in the network. The device determines an activity level for new traffic data regarding the particular subset of traffic in the network. The device detects a network anomaly by comparing the activity level for the new traffic data to the predicted seasonal activity.

公开(公告)号：US09774522B2

公开(公告)日：2017-09-26

申请号：US14164567

申请日：2014-01-27

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Grégory Mermoud ,  Sukrit Dasgupta

IPC: H04L1/00 ,  H04L12/703 ,  H04L12/733 ,  G06F11/20 ,  H04L12/751 ,  H04L12/24 ,  G06N7/00 ,  G06N99/00 ,  H04L12/26 ,  H04W40/18 ,  H04W40/30 ,  H04L12/721

CPC classification number: H04L45/28 ,  G06F11/2007 ,  G06N7/005 ,  G06N99/005 ,  H04L41/0836 ,  H04L41/147 ,  H04L41/16 ,  H04L43/0817 ,  H04L43/0894 ,  H04L45/02 ,  H04L45/20 ,  H04L45/70 ,  H04W40/18 ,  H04W40/30 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/30

Abstract: In one embodiment, network metrics are collected and analyzed in a network having nodes interconnected by communication links. Then, it is predicted whether a network element failure is relatively likely to occur based on the collected and analyzed network metrics. In response to predicting that a network element failure is relatively likely to occur, traffic in the network is rerouted in order to avoid the network element failure before it is likely to occur.

公开(公告)号：US20170272315A1

公开(公告)日：2017-09-21

申请号：US15611836

申请日：2017-06-02

Applicant: Cisco Technology, Inc.

Inventor： Patrick Wetterwald ,  Pascal Thubert ,  Jean-Philippe Vasseur

IPC: H04L12/24

CPC classification number: H04L41/0803 ,  H04L41/04

Abstract: In one embodiment, a scheduling device in a network receives routing metrics regarding a network path between a device controller and a networked device. The scheduling device also receives controller metrics for the device controller. The scheduling device determines time costs associated with the network path and one or more control operations performed by the device controller, based on the routing and controller metrics. The scheduling device generates a communication schedule based on the time costs and instructs the device controller and the networked device to use the communication schedule.

公开(公告)号：US09762480B2

公开(公告)日：2017-09-12

申请号：US14027974

申请日：2013-09-16

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Stefano B. Previdi

IPC: G06F15/173 ,  H04L12/723 ,  H04L12/701 ,  H04L12/715

CPC classification number: H04L45/507 ,  H04L45/00 ,  H04L45/04 ,  H04L45/50

Abstract: In one embodiment, a traffic engineering (TE) label switched path (LSP) is established between a head-end node in a local domain and a tail-end node in a remote domain. The TE-LSP spans one or more intervening domains located between the local domain and the remote domain. The head-end node sends a routing information request over the TE-LSP to a target node on the TE-LSP that is in the remote domain. The head end node receives routing information from the target node. The received routing information includes a list of address prefixes reachable by the target node. The head end node uses the received routing information to calculate routes reachable via the TE-LSP to the target node. The calculated routes have a next-hop interface set to be the TE-LSP. The calculated routes are inserted into a routing table of the head-end node.

公开(公告)号：US09749188B2

公开(公告)日：2017-08-29

申请号：US14276431

申请日：2014-05-13

Applicant: Cisco Technology, Inc.

Inventor： Jean-Philippe Vasseur ,  Sukrit Dasgupta ,  Grégory Mermoud

IPC: G06F15/16 ,  H04L12/24 ,  H04L12/26 ,  H04L12/815

CPC classification number: H04L41/16 ,  H04L41/0896 ,  H04L41/147 ,  H04L41/5003 ,  H04L41/5025 ,  H04L43/062 ,  H04L43/08 ,  H04L43/0876 ,  H04L47/22

Abstract: In one embodiment, network traffic data is received regarding traffic flowing through one or more routers in a network. A future traffic profile through the one or more routers is predicted by modeling the network traffic data. Network condition data for the network is received and future network performance is predicted by modeling the network condition data. A behavior of the network is adjusted based on the predicted future traffic profile and on the predicted network performance.

公开(公告)号：US09686312B2

公开(公告)日：2017-06-20

申请号：US14338852

申请日：2014-07-23

Applicant: Cisco Technology, Inc.

Inventor： Andrea Di Pietro ,  Jean-Philippe Vasseur ,  Javier Cruz Mota

IPC: H04L29/06 ,  H04L29/08

CPC classification number: G06F21/577 ,  G06F2221/034 ,  H04L63/1408 ,  H04L63/1425 ,  H04L63/1433 ,  H04L63/1458 ,  H04L67/1002

Abstract: In one embodiment, a device receives a classifier tracking request from a coordinator device that specifies a classifier verification time period. During the classifier verification time period, the device classifies a set of network traffic that includes traffic observed by the device and attack traffic specified by the coordinator device. The device generates classification results based on the classified set of network traffic and provides the classification results to the coordinator device.

公开(公告)号：US09667501B2

公开(公告)日：2017-05-30

申请号：US13953113

申请日：2013-07-29

Applicant: Cisco Technology, Inc.

Inventor： Sukrit Dasgupta ,  Jean-Philippe Vasseur ,  Grégory Mermoud

IPC: H04L12/24 ,  G06N99/00 ,  H04L29/06

CPC classification number: H04L41/14 ,  G06N99/005 ,  H04L41/065 ,  H04L41/5016 ,  H04L41/5035 ,  H04L63/1425 ,  H04L65/40

Abstract: In one embodiment, a state tracking engine (STE) defines one or more classes of elements that can be tracked in a network. A set of elements to track is determined from the one or more classes, and the set of elements is tracked in the network. Access to the tracked set of elements then provided via one or more corresponding application programming interfaces (APIs). In another embodiment, a metric computation engine (MCE) defines one or more network metrics to be tracked in the network. One or more tracked elements are received from the STE. The one or more network metrics are tracked in the network based on the received one or more tracked elements. Access to the tracked network metrics is then provided via one or more corresponding APIs.

公开(公告)号：US09647494B2

公开(公告)日：2017-05-09

申请号：US14569060

申请日：2014-12-12

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/733 ,  H04L12/751 ,  H02J9/06 ,  H04L12/703 ,  H02J3/38 ,  H04L12/729 ,  H04W40/04 ,  H04W40/10 ,  H04L12/707 ,  H04L12/753

CPC classification number: H02J9/061 ,  H02J3/383 ,  H04L45/125 ,  H04L45/22 ,  H04L45/28 ,  H04L45/48 ,  H04W40/04 ,  H04W40/10 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22 ,  Y02D70/32 ,  Y02D70/326

Abstract: In one embodiment, a device in a network detects a power outage event in the network. The device causes an unprotected node in the network to use a first routing topology that includes a power-protected backbone, in response to detecting the power outage event. The power-protected backbone includes one or more nodes that are protected against the power outage event and the unprotected node is not protected against the power outage event. The device routes data for the unprotected node using the first routing topology. The device causes the unprotected node to use a second routing topology that optimizes a path from the unprotected node to a root node of the network based on one or more performance criteria.

公开(公告)号：US09641382B2

公开(公告)日：2017-05-02

申请号：US14576641

申请日：2014-12-19

Applicant: Cisco Technology, Inc.

Inventor： Jonathan W. Hui ,  Wei Hong ,  Jean-Philippe Vasseur

IPC: H04L12/24 ,  H04B1/713 ,  H04L12/931

CPC classification number: H04L41/06 ,  H04B1/713 ,  H04L41/0654 ,  H04L49/00 ,  Y04S40/166

Abstract: In one embodiment, a first device in a network detects a power restoration event subsequent to a power outage event. Power is restored to the first device during the power restoration event. The first device synchronizes a channel hopping schedule to the detected power restoration event. The first device communicates with a neighboring device of the first device using the channel hopping schedule synchronized to the detected power restoration event. The neighboring device uses a corresponding channel hopping schedule to communicate with the first device that is also synchronized to the power restoration event.