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    Classification and forwarding node for integrating disparate headend traffic ingress services with disparate backend services
    544.
    发明授权
    Classification and forwarding node for integrating disparate headend traffic ingress services with disparate backend services 有权

    公开(公告)号：US11888740B2

    公开(公告)日：2024-01-30

    申请号：US17193411

    申请日：2021-03-05

    Applicant: Cisco Technology, Inc.

    Inventor： Leonardo Rangel Augusto ,  Stephen John Hassard ,  Kyle Andrew Donald Mestery ,  Bernardo De Moraes Soares

    IPC: H04L45/74

    CPC classification number: H04L45/74 ,  H04L2212/00

    Abstract: Techniques for integrating disparate headend traffic ingress services with disparate backend services are disclosed herein. The techniques may include receiving, at a classification and forwarding node of a networked computing environment, a data packet encapsulated according to a first encapsulation protocol that is supported by the classification and forwarding node. The techniques may also include determining, by the classification and forwarding node, that the data packet is to be sent to a service from among a group of services associated with the networked computing environment. The classification and forwarding node may also determine whether the first encapsulation protocol is supported by the service. Based at least in part on determining that the service supports a second encapsulation protocol different than the first encapsulation protocol, the classification and forwarding node may encapsulate the data packet according to the second encapsulation protocol and send the data packet to the service.

    End-to-end distributed network tracing involving cloud edge networks
    545.
    发明授权
    End-to-end distributed network tracing involving cloud edge networks 有权

    公开(公告)号：US11888719B2

    公开(公告)日：2024-01-30

    申请号：US17743917

    申请日：2022-05-13

    Applicant: Cisco Technology, Inc.

    Inventor： Hans F. Ashlock

    IPC: H04L43/10 ,  H04L43/062 ,  H04L43/0817

    CPC classification number: H04L43/10 ,  H04L43/062 ,  H04L43/0817

    Abstract: Techniques are described for generating an end-to-end distributed network trace involving cloud edge networks. In one example, a cloud or datacenter environment obtains, from an edge node in a cloud edge network, one or more network communications that include a correlation identifier associated with the one or more network communications and an identifier of the edge node. Based on the identifier of the edge node, the cloud or datacenter environment provides a network probe to the edge node. The cloud or datacenter environment obtains, from the edge node, telemetry data that is generated responsive to the network probe. The cloud or datacenter environment provides the telemetry data and the correlation identifier to an aggregation server that is configured to, based on the correlation identifier, aggregate the telemetry data with further telemetry data to generate an end-to-end distributed network trace associated with the one or more network communications.

    Electro-optical modulator using waveguides with overlapping ridges
    546.
    发明授权
    Electro-optical modulator using waveguides with overlapping ridges 有权

    公开(公告)号：US11886056B2

    公开(公告)日：2024-01-30

    申请号：US17456468

    申请日：2021-11-24

    Applicant: Cisco Technology, Inc.

    Inventor： Donald Adams ,  Prakash B. Gothoskar ,  Vipulkumar Patel ,  Mark Webster

    IPC: G02F1/025 ,  G02F1/01 ,  G02B6/132 ,  G02B6/136 ,  G02F1/225 ,  G02F1/015

    CPC classification number: G02F1/025 ,  G02B6/132 ,  G02B6/136 ,  G02F1/011 ,  G02F1/2257 ,  G02F1/0152

    Abstract: An optical modulator may include a lower waveguide, an upper waveguide, and a dielectric layer disposed therebetween. When a voltage potential is created between the lower and upper waveguides, these layers form a silicon-insulator-silicon capacitor (also referred to as SISCAP) guide that provides efficient, high-speed optical modulation of an optical signal passing through the modulator. In one embodiment, at least one of the waveguides includes a respective ridge portion aligned at a charge modulation region which may aid in confining the optical mode laterally (e.g., in the width direction) in the optical modulator. In another embodiment, ridge portions may be formed on both the lower and the upper waveguides. These ridge portions may be aligned in a vertical direction (e.g., a thickness direction) so that ridges overlap which may further improve optical efficiency by centering an optical mode in the charge modulation region.

    MULTI-MODE RADIO UNIT
    547.
    发明公开
    MULTI-MODE RADIO UNIT 审中-公开

    公开(公告)号：US20240031830A1

    公开(公告)日：2024-01-25

    申请号：US17814424

    申请日：2022-07-22

    Applicant: Cisco Technology, Inc.

    Inventor： Fred Anderson ,  Indermeet Singh Ghandi ,  Shailender Photharaju ,  Clark Carty

    IPC: H04W24/02 ,  H04W24/08

    CPC classification number: H04W24/02 ,  H04W24/08 ,  H04W88/10

    Abstract: A multi-mode radio unit, and more specifically providing a multi-mode radio unit having a 7.2 split mode and a full gNodeB (gNB) mode may be provided. A 7.2 split mode may be executed at a Multi-Mode Radio Unit (MMRU). Next a metric associated with a front-haul link between the MMRU and a Distributed Unit (DU) may be monitored. The metric may be compared to a first threshold, and when the metric is above the first threshold, the MMRU may be caused to switch from the 7.2 split mode to a full gNodeB (gNB) mode.

    CONTROL FLOW PREVENTION USING SOFTWARE BILL OF MATERIALS ANALYSIS
    548.
    发明公开
    CONTROL FLOW PREVENTION USING SOFTWARE BILL OF MATERIALS ANALYSIS 审中-公开

    公开(公告)号：US20240031394A1

    公开(公告)日：2024-01-25

    申请号：US18084093

    申请日：2022-12-19

    Applicant: Cisco Technology, Inc.

    Inventor： Vincent E. Parla ,  Thomas Szigeti

    IPC: H04L9/40

    CPC classification number: H04L63/1433 ,  H04L63/1425 ,  H04L63/1416

    Abstract: Techniques and systems described herein relate to monitoring executions of computer instructions on computing devices based on learning and generating a control flow directed graph. The techniques and systems include determining a learned control flow directed graph for a process executed on the computing system. A vulnerability may be determined or identified within the process as well as a software bill of materials for the process. A code portion of the process associated with the vulnerability is determined based on the software bill of materials. A tainted control flow directed graph is generated based on the code portion and excluded from the learned control flow directed graph. The adjusted control flow directed graph may be used to prevent execution of the vulnerability.

    SOURCE ADDRESS VALIDATION FOR ASYMMETRIC ROUTING
    549.
    发明公开
    SOURCE ADDRESS VALIDATION FOR ASYMMETRIC ROUTING 审中-公开

    公开(公告)号：US20240031275A1

    公开(公告)日：2024-01-25

    申请号：US18091824

    申请日：2022-12-30

    Applicant: Cisco Technology, Inc.

    Inventor： Alfred Clarence Lindem III ,  Peter Psenak ,  Lester C. Ginsberg

    IPC: H04L45/122 ,  H04L45/00 ,  H04L45/02

    CPC classification number: H04L45/122 ,  H04L45/20 ,  H04L45/02

    Abstract: Techniques are described for providing a method and apparatus for determining source address validation of a data packet in a network in the presence of asymmetric routing. When a data packet is received by a node such as a router, a reverse path forwarding lookup is performed to determine if the data packet was received on a next-hop interface and if the reverse path forwarding fails, a Shortest Path First (SPF) computation at the router advertising the source route will be performed using the link state database to determine whether the data packet arrived from a valid path of the network.

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