公开(公告)号：US12294512B2

公开(公告)日：2025-05-06

申请号：US17672278

申请日：2022-02-15

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Kedar Sudhir Karmarkar ,  Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda

IPC: H04L45/16 ,  H04L45/74

Abstract: This technology enables directed broadcasts in network fabrics. A control plane node is configured to resolve directed broadcast addresses by mapping the directed broadcast address to a subnet address. A fabric border node receives a directed broadcast, extracts a destination address, and transmits a request to the control plane node to resolve the destination address. The control plane node retrieves the stored mapping and generates a map reply with a multicast destination. The fabric border node encapsulates and forwards the directed broadcast to fabric edge nodes, which decapsulate the directed broadcast and deliver a data set from the directed broadcast to appropriate end point devices. Each fabric edge node may be enabled to determine if the fabric edge node may be connected to a silent host and, based on that determination, request the fabric border node to be added to the multicast destination to receive the directed broadcast.

公开(公告)号：US10574519B2

公开(公告)日：2020-02-25

申请号：US15708175

申请日：2017-09-19

Applicant: Cisco Technology, Inc.

Inventor： Subrat Mohanty ,  Shyamsundar N. Maniyar ,  Mark Montañez ,  Ravindra Narayan

IPC: H04L12/24 ,  H04L12/709 ,  H04L12/803 ,  H04L12/891

Abstract: Detection and configuration of a logical channel may be provided. First, data traffic received on a plurality of ports of a first network device may be analyzed by a computing device. Next, based upon analyzing the data traffic received on the plurality of ports, the computing device may determine that the plurality of ports comprise a logical channel from the perspective of a second network device. The plurality of ports may then be configured as the logical channel on the first network device based upon determining that the plurality of ports comprise the logical channel from the perspective of the second network device.

公开(公告)号：US20230300024A1

公开(公告)日：2023-09-21

申请号：US18322236

申请日：2023-05-23

Applicant: Cisco Technology, Inc.

Inventor： Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda ,  Shree N. Murthy ,  Sonal Prem Kumar Chhabria ,  Akshay Dorwat

IPC: H04L41/0813 ,  H04L12/46 ,  H04L67/306

CPC classification number: H04L41/0813 ,  H04L12/4641 ,  H04L67/306 ,  H04L2212/00

Abstract: In one embodiment, dynamic user private networks are virtually segmented within a shared virtual network. A network control system maintains the dynamic logical segmentation of the shared virtual network. User entities (e.g., user devices and/or services) are communicatively coupled to respective personal virtual networks via endpoints of access devices. Each of these endpoints is associated with a corresponding user private network. Responsive in real-time to automated processing of a received electronic particular user request, the network control system automatically modifies the dynamic logical segmentation of the shared virtual network to move a particular user entity on the shared virtual network to newly being on the first dynamic user private network without being disconnected from the shared virtual network. One embodiment uses different user private network identifiers (UPN-IDs) associated with endpoints and received packets to identify their respective user private network.

公开(公告)号：US12107721B2

公开(公告)日：2024-10-01

申请号：US18426498

申请日：2024-01-30

Applicant: Cisco Technology, Inc.

Inventor： Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda ,  Shree N. Murthy ,  Sonal Prem Kumar Chhabria ,  Akshay Dorwat

IPC: H04L41/0813 ,  H04L12/46 ,  H04L67/306

CPC classification number: H04L41/0813 ,  H04L12/4641 ,  H04L67/306 ,  H04L2212/00

Abstract: In one embodiment, dynamic user private networks are virtually segmented within a shared virtual network. A network control system maintains the dynamic logical segmentation of the shared virtual network. User entities (e.g., user devices and/or services) are communicatively coupled to respective personal virtual networks via endpoints of access devices. Each of these endpoints is associated with a corresponding user private network. Responsive in real-time to automated processing of a received electronic particular user request, the network control system automatically modifies the dynamic logical segmentation of the shared virtual network to move a particular user entity on the shared virtual network to newly being on the first dynamic user private network without being disconnected from the shared virtual network. One embodiment uses different user private network identifiers (UPN-IDs) associated with endpoints and received packets to identify their respective user private network.

公开(公告)号：US20250155959A1

公开(公告)日：2025-05-15

申请号：US18508120

申请日：2023-11-13

Applicant: Cisco Technology, Inc.

Inventor： Sanjay K Hooda ,  Swati Garg ,  Madhavan Kasthurirangan ,  Shyamsundar N. Maniyar

IPC: G06F1/3296 ,  G06F1/3206

Abstract: Devices, networks, systems, methods, and processes for determining a dynamic bias associated with a network device are described herein. A communication network may include multiple network devices and multiple links between the network devices. The communication network may further include a controller that monitors the communication network to determine dynamic changes in a network topology of the communication network. The controller determines the dynamic bias associated with the network device based on the dynamic changes. The controller generates and transmits a control signal based on the dynamic bias. The network device receives the control signal and switches an operation state of the network device, or an operation state of the links connected to the network device, based on the control signal. The controller can thereby achieve reduction in power consumption of the communication network by switching off the network device without affecting reliability and availability of the communication network.

公开(公告)号：US11700173B2

公开(公告)日：2023-07-11

申请号：US16948627

申请日：2020-09-25

Applicant: Cisco Technology, Inc.

Inventor： Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda ,  Shree N. Murthy ,  Sonal Prem Kumar Chhabria ,  Akshay Dorwat

IPC: H04L41/0813 ,  H04L12/46 ,  H04L67/306

CPC classification number: H04L41/0813 ,  H04L12/4641 ,  H04L67/306 ,  H04L2212/00

Abstract: In one embodiment, dynamic user private networks are virtually segmented within a shared virtual network. A network control system maintains the dynamic logical segmentation of the shared virtual network. User entities (e.g., user devices and/or services) are communicatively coupled to respective personal virtual networks via endpoints of access devices. Each of these endpoints is associated with a corresponding user private network. Responsive in real-time to automated processing of a received electronic particular user request, the network control system automatically modifies the dynamic logical segmentation of the shared virtual network to move a particular user entity on the shared virtual network to newly being on the first dynamic user private network without being disconnected from the shared virtual network. One embodiment uses different user private network identifiers (UPN-IDs) associated with endpoints and received packets to identify their respective user private network.

公开(公告)号：US20210385100A1

公开(公告)日：2021-12-09

申请号：US16897110

申请日：2020-06-09

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Kedar Sudhir Karmarkar ,  Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda

IPC: H04L12/18 ,  H04L12/741 ,  H04L12/751 ,  H04L12/761 ,  H04L12/46

Abstract: This technology enables directed broadcasts in network fabrics. To enable a directed broadcast, a control plane node is configured to resolve directed broadcast addresses by mapping the directed broadcast address to a subnet address associated with the network fabric. A fabric border node receives a directed broadcast, extracts a destination address associated with the directed broadcast, and transmits a request to the control plane node to resolve the destination address. The control plane node retrieves the stored mapping and generates a map reply to the fabric border node with a multicast destination comprising the network fabric subnet address. The fabric border node encapsulates the directed broadcast with a header comprising the multicast destination and forwards the encapsulated directed broadcast to fabric edge nodes, which decapsulate the directed broadcast and deliver a data set from the directed broadcast to appropriate end point devices.

公开(公告)号：US20240171457A1

公开(公告)日：2024-05-23

申请号：US18426498

申请日：2024-01-30

Applicant: Cisco Technology, Inc.

Inventor： Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda ,  Shree N. Murthy ,  Sonal Prem Kumar Chhabria ,  Akshay Dorwat

IPC: H04L41/0813 ,  H04L12/46 ,  H04L67/306

CPC classification number: H04L41/0813 ,  H04L12/4641 ,  H04L67/306 ,  H04L2212/00

Abstract: In one embodiment, dynamic user private networks are virtually segmented within a shared virtual network. A network control system maintains the dynamic logical segmentation of the shared virtual network. User entities (e.g., user devices and/or services) are communicatively coupled to respective personal virtual networks via endpoints of access devices. Each of these endpoints is associated with a corresponding user private network. Responsive in real-time to automated processing of a received electronic particular user request, the network control system automatically modifies the dynamic logical segmentation of the shared virtual network to move a particular user entity on the shared virtual network to newly being on the first dynamic user private network without being disconnected from the shared virtual network. One embodiment uses different user private network identifiers (UPN-IDs) associated with endpoints and received packets to identify their respective user private network.

公开(公告)号：US11909591B2

公开(公告)日：2024-02-20

申请号：US18322236

申请日：2023-05-23

Applicant: Cisco Technology, Inc.

Inventor： Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda ,  Shree N. Murthy ,  Sonal Prem Kumar Chhabria ,  Akshay Dorwat

IPC: H04L41/0813 ,  H04L12/46 ,  H04L67/306

CPC classification number: H04L41/0813 ,  H04L12/4641 ,  H04L67/306 ,  H04L2212/00

Abstract: In one embodiment, dynamic user private networks are virtually segmented within a shared virtual network. A network control system maintains the dynamic logical segmentation of the shared virtual network. User entities (e.g., user devices and/or services) are communicatively coupled to respective personal virtual networks via endpoints of access devices. Each of these endpoints is associated with a corresponding user private network. Responsive in real-time to automated processing of a received electronic particular user request, the network control system automatically modifies the dynamic logical segmentation of the shared virtual network to move a particular user entity on the shared virtual network to newly being on the first dynamic user private network without being disconnected from the shared virtual network. One embodiment uses different user private network identifiers (UPN-IDs) associated with endpoints and received packets to identify their respective user private network.

公开(公告)号：US20230254250A1

公开(公告)日：2023-08-10

申请号：US17665868

申请日：2022-02-07

Applicant: Cisco Technology, Inc.

Inventor： Victor Manuel Moreno ,  Shyamsundar N. Maniyar ,  Sanjay Kumar Hooda ,  Prakash C. Jain ,  Vinay Saini

IPC: H04L45/745

CPC classification number: H04L45/745

Abstract: Techniques and architecture are described that utilize network address translation (NAT) based on a group tag such that legacy and third-party devices may utilize and apply “subnet” based policies, thereby allowing the subnet based policies to be as effective as “group” based policies. In particular, a subnet may be applied to a group tag where the group tag is not understandable outside an access network such as, for example, a fabric network. Thus, when a packet originates from a fabric network utilizing group tags representing source groups of endpoints and is destined for a legacy or a third-party device-based network that does not utilize and/or understand group tags, then the group is converted into a subnet. Since that subnet is different from the source host within the fabric network, network address translation (NAT) is utilized.