Prevention of denial of service attacks using FTM requests

    公开(公告)号:US11638154B2

    公开(公告)日:2023-04-25

    申请号:US17205043

    申请日:2021-03-18

    Abstract: Examples of techniques for handling fine time measurement ranging requests are described. In an example, an access point (AP) may receive a ranging request for initiating a Fine Timing Measurement (FTM) session. Responsive to determining that the client device is associated with the AP, it is determined that the ranging request is received after a threshold time from expiry of an FTM burst period of the client device. It is determined that the ranging request is within an FTM acceptance threshold of the AP. A number of consecutive unsuccessful FTM bursts between the AP and the client device is determined. In response to determining that the number of consecutive unsuccessful FTM bursts is less than an unsuccessful burst threshold of the AP, the FTM session may be initiated based on the ranging request.

    Co-packaged multiplane networks
    322.
    发明授权

    公开(公告)号:US11637719B2

    公开(公告)日:2023-04-25

    申请号:US17047833

    申请日:2018-04-30

    Abstract: A co-packaged, multiplane network includes: an enclosure; a portion of a first network plane disposed within the enclosure and comprising a first plurality of interconnected switches; a portion of a second network plane disposed within the enclosure and comprising a second plurality of interconnected switches, the second network plane being independent of the first network plane and having the same topology as the first network plane; and a plurality of connectors, each connector being communicatively coupled to a respective port of each of the first plurality of interconnected switches and the second plurality of interconnected switches.

    BASEBOARD MANAGEMENT CONTROLLER (BMC) FOR STORING CRYPTOGRAPHIC KEYS AND PERFORMING CRYPTOGRAPHIC OPERATIONS

    公开(公告)号:US20230120616A1

    公开(公告)日:2023-04-20

    申请号:US17505706

    申请日:2021-10-20

    Abstract: Examples described herein relate to a system and method for providing a key store within Baseboard Management Controller (BMC) of a computing device. A secure storage key of the BMC may include a key store, storing cryptographic objects such as cryptographic keys and digital certificates used by entities for performing cryptographic operations. The BMC may receive a request from an entity for performing the cryptographic operation and may determine if the entity is authorized to request the cryptographic operation. If the entity is authorized, the BMC may identify a private key from the key store for performing the cryptographic operation. Once the key is identified, the BMC may determine if the entity is permitted access to the private key. When the entity is permitted to access the private key, the BMC may perform the cryptographic operation using the private key and returns the results to the entity.

    ADAPTIVE SPATIAL REUSE
    324.
    发明申请

    公开(公告)号:US20230119650A1

    公开(公告)日:2023-04-20

    申请号:US17501972

    申请日:2021-10-14

    Abstract: Systems and methods are provided for adaptively enabling and disabling spatial reuse and adapting BSS color assignments based on various factors associated with a wireless network. A first AP in a wireless network can identify a second AP in a wireless network. The first AP and the second AP may be using the same wireless channel in the wireless network. The first AP can determine a signal strength, such as a received signal strength indicator (RSSI), associated with the second AP. The first AP can adapt its spatial reuse and BSS color assignment according to the signal strength and a signal strength threshold. By adaptively enabling and disabling spatial reuse and adapting BSS color assignments, the disclosed systems and methods provide for improved reuse of wireless mediums while avoiding collisions.

    SERVER NETWORK INTERFACE CARD-LOCATED BASEBOARD MANAGEMENT CONTROLLERS

    公开(公告)号:US20230119437A1

    公开(公告)日:2023-04-20

    申请号:US17450860

    申请日:2021-10-14

    Abstract: A process includes an application layer of a host of a computer platform using a smart network interface card (NIC) of the computer platform to provide an input/output (I/O) service for the application layer. The I/O service includes a service that is associated with a cloud operator domain; the smart NIC is installed in a connector; and the application layers associated with a cloud tenant domain. The process includes a baseboard management controller of the smart NIC managing the computer platform. Managing the computer platform includes the baseboard management controller managing the host; the baseboard management controller managing components of the smart NIC other than the baseboard management controller; and managing the host includes the baseboard management controller communicating with the host via the connector to control a system power state of the computer platform.

    SYSTEMS AND METHODS FOR PREDICTIVE ASSURANCE

    公开(公告)号:US20230115255A1

    公开(公告)日:2023-04-13

    申请号:US18051620

    申请日:2022-11-01

    Abstract: Systems and methods are provided for predicting system or network failures, such as a degradation in the services provided by a service provider system or network, a system or network outage, etc. In a discovery phase, failure scenarios that can be accurately predicted based on monitored system events are identified. In an operationalization phase, those failure scenarios can be used to design production run-time machines that can be used to predict, in real-time, a future failure scenario. An early warning signal(s) can be sent in advance of the failure scenario occurring.

    AUTOMATIC POLICY ENGINE SELECTION
    327.
    发明申请

    公开(公告)号:US20230112579A1

    公开(公告)日:2023-04-13

    申请号:US17498477

    申请日:2021-10-11

    Abstract: One aspect of the instant application facilitates automatic policy engine selection. During operation, a system can monitor a network including a set of network devices. The system can receive, based on the monitoring, a set of attributes associated with the network. At least two network devices are equipped with a different policy enforcement engine for enforcing one or more given policy rules. The system can apply a unified policy model to determine, based on the set of attributes, an assignment of the one or more given policy rules to the first policy enforcement engine and the second policy enforcement engine for providing an optimized policy enforcement. The system may then select based on the assignment, one or both of the first policy enforcement engine and the second policy enforcement engine. The system may activate the selected one or both policy enforcement engines for enforcing the given policy rules.

    Management of coherency directory cache entry ejection

    公开(公告)号:US11625326B2

    公开(公告)日:2023-04-11

    申请号:US17301949

    申请日:2021-04-20

    Inventor: Frank R. Dropps

    Abstract: In exemplary aspects of managing the ejection of entries of a coherence directory cache, the directory cache includes directory cache entries that can store copies of respective directory entries from a coherency directory. Each of the directory cache entries is configured to include state and ownership information of respective memory blocks. Information is stored, which indicates if memory blocks are in an active state within a memory region of a memory. A request is received and includes a memory address of a first memory block. Based on the memory address in the request, a cache hit in the directory cache is detected. The request is determined to be a request to change the state of the first memory block to an invalid state. The ejection of a directory cache entry corresponding to the first memory block is managed based on ejection policy rules.

    Optical device having photonic-crystal lattice structure for optical interconnects

    公开(公告)号:US11619784B2

    公开(公告)日:2023-04-04

    申请号:US17443989

    申请日:2021-07-29

    Abstract: Examples described herein relate to an optical device having a photonic-crystal lattice structure. In some examples, the optical device may include a substrate having a photonic-crystal lattice structure. The optical device may further include an optical waveguide formed in the photonic-crystal lattice structure and a defect cavity formed in the photonic-crystal lattice structure and optically coupled to the optical waveguide. Furthermore, the optical device may include a refractive index tuning structure adjacent to the defect cavity in the photonic-crystal lattice structure.

    HARDWARE DEVICE POLLING USING DELAY ORDER

    公开(公告)号:US20230101611A1

    公开(公告)日:2023-03-30

    申请号:US17449195

    申请日:2021-09-28

    Inventor: Matthew S. Gates

    Abstract: A process includes, responsive to a first epoch of a sequence of epochs, a plurality of processors accessing first entries of a first buffer that is shared among the plurality of processors. The first entries identify a first subset of hardware devices to be polled of a plurality of hardware devices. Responsive to the accessing, the plurality of processors poll the first subset of hardware devices. Responsive to the first epoch, the process includes, responsive to results of the polling, the plurality of processors updating delay orders that are associated with the first subset of hardware devices; and the plurality of processors adding second entries identifying the first subset of hardware devices to a plurality of second buffers based on the delay orders, where each second buffer of the plurality of second buffers corresponds to a different delay order of the delay orders. The process includes, responsive to a condition that represents an end of the first epoch, preparing the first buffer for a second epoch of the sequence of epochs. The preparation includes, responsive to a position of the second epoch in the sequence of epochs, selecting a second subset of hardware devices of the plurality of hardware devices for the second epoch. The selection includes selecting, from the plurality of second buffers, third entries that identify the second subset of hardware devices and adding the third entries to the first buffer.

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