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公开(公告)号：US20150078380A1
公开(公告)日：2015-03-19
申请号：US14536153
申请日：2014-11-07
Applicant: Cisco Technology, Inc.
Inventor： Ijsbrand Wijnands , Gregory J. Shepherd , Nagendra Kumar Nainar
IPC: H04L12/18 , H04L12/723 , H04L12/741
Abstract: Various systems and methods for performing bit indexed explicit replication (BIER). For example, one method involves receiving a link layer protocol frame at a network device. The link layer protocol frame includes a MAC address that identifies the link layer protocol frame as a being a multicast frame. The method then involves selecting a subset of ports included on the network device and forwarding the link layer protocol frame to only the selected subset of ports.
Abstract translation: 用于执行位索引显式复制（BIER）的各种系统和方法。 例如，一种方法涉及在网络设备处接收链路层协议帧。 链路层协议帧包括将链路层协议帧标识为多播帧的MAC地址。 该方法然后涉及选择包括在网络设备上的端口的子集，并将链路层协议帧转发到仅选择的端口子集。
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322.发明授权公开(公告)号：US12294513B2
公开(公告)日：2025-05-06
申请号：US18223731
申请日：2023-07-19
Applicant: Cisco Technology, Inc.
Inventor： Nagendra Kumar Nainar , Carlos M. Pignataro , Zafar Ali
Abstract: Techniques for initiator-based data-plane validation of segment routed, multiprotocol label switched (MPLS) networks are described herein. In examples, an initiating node may determine to validate data-plane connectivity associated with a network path of the MPLS network. The initiating node may store validation data in a local memory of the initiating node. In examples, the initiating node may send a probe message that includes a request for identification data associated with a terminating node. The terminating node may send a probe reply message that includes the identification data, as well as, in some examples, a code that instructs the initiating node to perform validation. In examples, the initiating node may use the validation data stored in memory to compare to the identification data received from the terminating node to validate data-plane connectivity. In some examples, the initiating node may indicate a positive or negative response after performing the validation.
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公开(公告)号：US20250080464A1
公开(公告)日：2025-03-06
申请号：US18462209
申请日：2023-09-06
Applicant: Cisco Technology, Inc.
Inventor： Carlos Pignataro , Pascal Thubert , Eric A. Voit , Nagendra Kumar Nainar
IPC: H04L47/127 , H04L47/2425
Abstract: Described herein are devices, systems, methods, and processes for optimizing network traffic distribution across multiple paths in a manner that is energy-efficient and environmental sustainability-aware. This may be achieved by leveraging time-series analytics and capacity planning based on seasonalities. Data associated with the Layer 3 topology of the network can be collected. Bandwidth can be pre-reserved on an energy-aware traffic engineering tunnel. The time-series data can be used to build a capacity plan based on the seasonalities. Nodes may be clustered based on usage patterns and network utilization seasonality. The data can be used to make decisions about when and where to combine or shut down paths for energy efficiency, while maintaining optimal network performance. A hysteresis mechanism may be incorporated to avoid oscillation when changing active links. Power savings can be achieved by fully turning off or depowering certain network components when they are not needed.
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公开(公告)号：US20250045372A1
公开(公告)日：2025-02-06
申请号：US18364031
申请日：2023-08-02
Applicant: Cisco Technology, Inc.
Inventor： Anusha Kopparam , Nagendra Kumar Nainar , Nahid Alam
IPC: G06F21/36 , G06F3/04886
Abstract: Embodiments relate to a method and an electronic device for modifying a user interface of the electronic device. The method includes detecting, on the electronic device, a selection of a multi-keypad configuration among a plurality of multi-keypad configurations. Based on the selection of the multi-keypad configuration, a plurality of virtual keys are displayed on the user interface. The method includes receiving, on the user interface, a user touch gestures to configure one or more of the plurality of virtual keys to generate a virtual keyboard. The method includes updating machine learning models, image classifier models, and memory of the electronic device to update and store the generated virtual keyboard including the configuration of the one or more of the plurality of virtual keys to initiate user authentication in real time.
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公开(公告)号：US12192192B2
公开(公告)日：2025-01-07
申请号：US17749274
申请日：2022-05-20
Applicant: Cisco Technology, Inc.
Inventor： Vinay Saini , Rajesh Indira Viswambharan , Nagendra Kumar Nainar , Akram Ismail Sheriff , David John Zacks
IPC: H04L9/40
Abstract: In one embodiment, a method herein comprises: receiving, at a device, a registration request from a telemetry exporter that transmits telemetry data; generating, by the device, a telemetry configuration file for the telemetry exporter, the telemetry configuration file defining a policy for transmission of telemetry data from the telemetry exporter and an authentication token for the telemetry exporter; sharing, by the device, the policy with a security enforcer; and sending, by the device, the telemetry configuration file to the telemetry exporter, wherein the telemetry exporter is caused to connect with the security enforcer using the authentication token, send the telemetry configuration file to the security enforcer, and transmit collected telemetry data to the security enforcer, and wherein the security enforcer is caused to create a dynamic publish-subscribe stream for publishing the collected telemetry data received from the telemetry exporter based on the telemetry configuration file and the policy.
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Patent Agency Ranking
公开(公告)号：US12192100B2
公开(公告)日：2025-01-07
申请号：US17972545
申请日：2022-10-24
Applicant: Cisco Technology, Inc.
Inventor： Nagendra Kumar Nainar , Carlos M. Pignataro , Luca Muscariello
Abstract: This disclosure describes techniques for implementing centralized path computation for routing in hybrid information-centric networking protocols implemented as a virtual network overlay. A method includes receiving an interest packet header from a forwarding router node of a network overlay. The method further includes determining an interest path of the interest packet and one or more destination router nodes of the network overlay. The method further includes computing one or more paths over the network overlay. The method further includes determining an addressing method for the one or more computed paths over the network overlay. The method further includes performing at least one of encoding each computed path in a data packet header, and encoding each computed path as state entries of each router node of the network overlay on each respective path. The method further includes returning the computed path information to the forwarding router node.
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公开(公告)号：US12184534B2
公开(公告)日：2024-12-31
申请号：US18504840
申请日：2023-11-08
Applicant: Cisco Technology, Inc.
Abstract: In one aspect, a method for monitoring a Fast Re-Route (FRR) path between a source node (Node-S) and a destination node (Node-E) in a network, includes generating a discovery-probe at the source node (Node-S) to detect at least one node with an FRR indicator along the FRR path that includes a plurality of next available nodes. The method also includes upon the discovery probe reaching a first node with the FRR indicator, generating a primary probe configured to detect a primary path and a repair probe configured to detect a repair path. The method also includes in response to receiving the primary probe via the primary path and the repair probe via the repair path at the destination node, sending the primary probe and the repair probe back to the source node to monitor the FRR path between the source node and the destination node.
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公开(公告)号：US20240414245A1
公开(公告)日：2024-12-12
申请号：US18332884
申请日：2023-06-12
Applicant: Cisco Technology, Inc.
Inventor： Carlos M. Pignataro , Nagendra Kumar Nainar
IPC: H04L47/2425
Abstract: Techniques to add environmental-impact and energy sustainability criteria and support to service function chains (SFCs). These techniques enabling steering of network traffic that carries energy sustainability related metadata within in an SFC based on energy sustainability or “green criteria.” This allows for achieving, for example, so-called “green Operations, Administration and Maintenance (OAM)”, whether realized with Network Service Header (NSH), Segment Routing, Multi-protocol Label Switching (MPLS), etc. In other words, these techniques enhance service functions (SFs) and SFCs to allow for finding an energy sustainable or green path in an SFC, and to allow for conveying environmental information as in-line metadata.
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公开(公告)号：US20240414089A1
公开(公告)日：2024-12-12
申请号：US18206245
申请日：2023-06-06
Applicant: Cisco Technology, Inc.
Inventor： Nagendra Kumar Nainar , Carlos M. Pignataro , Akram Sheriff , Vinay Saini , Rajesh Indira Viswambharan
Abstract: Techniques for determining an optimal connection path by a NHNaaS are described. The techniques may include receiving a registration from an IPS that includes service ISP service parameters, and storing the registration in a NaaS database. A request to connect to a remote service from a user device, including user parameters required is received. ISPs having respective service parameters compatible with the user parameters are identified in the NaaS database. Multiple paths offered by the service providers between the user device and the remote service are determined. Network performance data for each path is received from a network monitoring service. Using the network performance data, an optimal path for establishing the connection is identified. A request to instantiate a tunnel between the user device and remote service is transmitted to the service providers along the optimal path and the tunnel information is transmitted to the user device.
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公开(公告)号：US12137125B2
公开(公告)日：2024-11-05
申请号：US17886030
申请日：2022-08-11
Applicant: Cisco Technology, Inc.
Inventor： Nagendra Kumar Nainar , Vinay Saini , Akram Sheriff , Rajesh Indira Viswambharan , David John Zacks
IPC: H04L9/40
Abstract: Techniques are described for classification-based data security management. The classification-based data security management can include utilizing device and/or data attributes to identify security modes for communication of data stored in a source device. The security modes can be identified based on a hybrid-encryption negotiation. The attributes can include a device resource availability value, an access trust score, a data confidentiality score, a geo-coordinates value, and/or a date/time value. The security modes can include a hybrid-encryption mode. The source device can utilize the hybrid-encryption mode to transmit the data, via one or more network nodes, such as an edge node, to one or more service nodes.
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