公开(公告)号：US12095648B2

公开(公告)日：2024-09-17

申请号：US17500896

申请日：2021-10-13

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Madhusoodhana Chari Sesha ,  Ankit Kumar Sinha

IPC: H04L45/02 ,  G06N20/00 ,  H04L45/745

CPC classification number: H04L45/08 ,  G06N20/00 ,  H04L45/745

Abstract: Systems and methods are provided for detecting changes in network activity that are depicted in a routing table. The routing table may be stored as a search tree data structure (e.g., Merkle Patricia Tree) to mimic a standard routing table and reduce the search time to find the desired route by allowing the router to traverse the search tree data structure more efficiently. Additionally, the metadata of the tree may be provided to an unstructured machine learning model (e.g., K-means) to identify new clusters of routes week-over-week and generate an alert with any changes. Changes are identified in near real time and dynamically at the router (not a central device) to reduce the time needed to respond to network changes.

公开(公告)号：US11646991B2

公开(公告)日：2023-05-09

申请号：US17334005

申请日：2021-05-28

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ankit Kumar Sinha ,  Saumya Dikshit ,  Vinayak Joshi ,  Venkatesh Natarajan

IPC: H04L61/103 ,  H04L45/02 ,  H04L61/255 ,  H04L12/46 ,  H04L12/66 ,  H04L61/58 ,  H04L61/59

CPC classification number: H04L61/103 ,  H04L12/4641 ,  H04L12/66 ,  H04L45/04 ,  H04L61/255 ,  H04L61/58 ,  H04L61/59

Abstract: One aspect provides a method and system for managing address resolution requests in a network. During operation, a gateway of the network advertises a route for sending address resolution requests and determines whether a cached entry corresponding to an address resolution request received via the route exists in a neighbor table. In response to determining that the cached entry exists, the gateway responds to the address resolution request based on the cached entry; in response to determining that the cached entry does not exist, the gateway replicates the address resolution request to edge devices in the network, thereby facilitating discovery of a target host corresponding to the address resolution request.

公开(公告)号：US20220200880A1

公开(公告)日：2022-06-23

申请号：US17130483

申请日：2020-12-22

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ankit Kumar Sinha ,  Anoop Govindan Nair ,  Parikshit Misra

IPC: H04L12/26 ,  H04L12/723

Abstract: A switch that can report unavailability in a label-switched network is provided. During operation, the switch can determine that a label-switched path is unavailable for forwarding a packet. The switch can then generate a notification message for collecting unavailability information at a respective upstream hop of the label-switched path. The notification message includes a depth indicator indicating the depth of collected unavailability information and an ingress label of the packet at the switch. If the switch is an intermediate switch on the label-switched path, the switch can forward the notification message to an upstream switch on the label-switched path, thereby allowing the upstream switch to collect further unavailability information in the notification message.

公开(公告)号：US11632316B2

公开(公告)日：2023-04-18

申请号：US17130483

申请日：2020-12-22

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ankit Kumar Sinha ,  Anoop Govindan Nair ,  Parikshit Misra

IPC: H04L43/0805 ,  H04L45/50 ,  H04L41/0686 ,  H04L41/40 ,  H04L43/06 ,  H04L43/10

Abstract: A switch that can report unavailability in a label-switched network is provided. During operation, the switch can determine that a label-switched path is unavailable for forwarding a packet. The switch can then generate a notification message for collecting unavailability information at a respective upstream hop of the label-switched path. The notification message includes a depth indicator indicating the depth of collected unavailability information and an ingress label of the packet at the switch. If the switch is an intermediate switch on the label-switched path, the switch can forward the notification message to an upstream switch on the label-switched path, thereby allowing the upstream switch to collect further unavailability information in the notification message.

公开(公告)号：US11546379B2

公开(公告)日：2023-01-03

申请号：US15884724

申请日：2018-01-31

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ramlakhan Patel ,  Ankit Kumar Sinha ,  Praveen Kumar Arora ,  Rangaprasad Sampath

IPC: H04L9/40 ,  H04L67/12 ,  H04L69/325 ,  H04L47/32 ,  H04L12/46 ,  G06N20/00

Abstract: Examples provided herein describe a method for providing security for Internet of Things (IoT) devices. For example, a data packet from an IoT device may be received at an edge device. A signature associated with the IoT device may be accessed at the edge device, where the signature includes network layer information about the IoT device. A set of rules may be applied by the edge device to validate the IoT device based on the accessed signature. Responsive to the IoT device being validated based on the accessed signature, received data packet, and the applied set of rules, the edge device may process the data packet from the IoT device.

公开(公告)号：US20180219920A1

公开(公告)日：2018-08-02

申请号：US15884724

申请日：2018-01-31

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ramlakhan Patel ,  Ankit Kumar Sinha ,  Praveen Kumar Arora ,  Rangaprasad Sampath

IPC: H04L29/06 ,  H04L29/08 ,  G06N99/00 ,  H04L12/46 ,  H04L12/823

CPC classification number: H04L63/20 ,  G06N20/00 ,  H04L12/4641 ,  H04L47/32 ,  H04L63/0876 ,  H04L63/10 ,  H04L63/102 ,  H04L63/1441 ,  H04L63/164 ,  H04L67/12 ,  H04L69/325

Abstract: Examples provided herein describe a method for providing security for Internet of Things (IoT) devices. For example, a data packet from an IoT device may be received at an edge device. A signature associated with the IoT device may be accessed at the edge device, where the signature includes network layer information about the IoT device. A set of rules may be applied by the edge device to validate the IoT device based on the accessed signature. Responsive to the IoT device being validated based on the accessed signature, received data packet, and the applied set of rules, the edge device may process the data packet from the IoT device.

公开(公告)号：US11582122B2

公开(公告)日：2023-02-14

申请号：US17406837

申请日：2021-08-19

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Madhusoodhana Chari Sesha ,  Ankit Kumar Sinha ,  Krishna Mohan Elluru ,  M Arun Kumar ,  A Abdul Samadh ,  Jayachandra Babu K

IPC: G06F15/173 ,  H04L43/08 ,  H04L69/22 ,  H04L43/062

Abstract: A system and a method for performing programmable analytics on network data are described. A data layer constructs flow behavior information based on information present within headers of data packets flowing across one or more network devices configured in a computer network. An inline heuristics layer performs one or more inline heuristic operations on the flow behavior information to obtain aggregate statistical information. An integrated analytics layer performs one or more analytical operations on the flow behavior information to obtain network insights. A presentation layer filters and plots information obtained from the data layer, the inline heuristics layer, and the integrated analytics layer, based on a user input.

公开(公告)号：US12074782B2

公开(公告)日：2024-08-27

申请号：US17228073

申请日：2021-04-12

Applicant: HEWLETT PACKARD ENTERPRISE DEVELOPMENT LP

Inventor： Anoop Govindan Nair ,  Ankit Kumar Sinha ,  Veerendranatha Reddy Vallem

IPC: H04L45/12 ,  H04L45/028 ,  H04L45/44 ,  H04L45/586

CPC classification number: H04L45/123 ,  H04L45/028 ,  H04L45/44 ,  H04L45/586

Abstract: A system and a method for eliminating data loss in a virtually aggregated network are described. A first network device may identify inactivity of a central network device present in a communication network. The central network device is responsible for distributing routing information between a plurality of network devices including the first network device. The first network device delays network route calculations until a second network device is elected from the plurality of network devices to perform functions of the central network device. The second network device generates link state information related to the plurality of network devices, and shares the link state information with the plurality of network devices. Upon receiving the link state information, the plurality of network device may resume the route calculations.

公开(公告)号：US20220385620A1

公开(公告)日：2022-12-01

申请号：US17334005

申请日：2021-05-28

Applicant: Hewlett Packard Enterprise Development LP

Inventor： Ankit Kumar Sinha ,  Saumya Dikshit ,  Vinayak Joshi ,  Venkatesh Natarajan

IPC: H04L29/12 ,  H04L12/46 ,  H04L12/66 ,  H04L12/715

Abstract: One aspect provides a method and system for managing address resolution requests in a network. During operation, a gateway of the network advertises a route for sending address resolution requests and determines whether a cached entry corresponding to an address resolution request received via the route exists in a neighbor table. In response to determining that the cached entry exists, the gateway responds to the address resolution request based on the cached entry; in response to determining that the cached entry does not exist, the gateway replicates the address resolution request to edge devices in the network, thereby facilitating discovery of a target host corresponding to the address resolution request.