Patents by Inventor Riaz A. Khan

Riaz A. Khan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240036993
    Abstract: Embodiments of the present disclosure are directed to dynamic shadow operations configured to dynamically shadow data-plane resources in a network device. In some embodiments, the dynamic resource shadow operations are used to locally maintain a shadow copy of data plane resources to avoid having to read them through a bus interconnect. In other embodiments, the dynamic shadow framework is used to provide memory protection for hardware resources against SEU failures. The dynamic shadow framework may operate in conjunction with adaptive memory scrubbing operations. In other embodiments, the dynamic shadow infrastructure is used to facilitate fast boot-up and fast upgrade operations.
    Type: Application
    Filed: October 11, 2023
    Publication date: February 1, 2024
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Patent number: 11882060
    Abstract: An embodiment is directed to switchover operations with a mobile virtualized network device in a mobile device. The mobile virtualized hardware switchover operations may be used to selectively and temporarily provide virtualized control-plane operations to the data-plane of a non-redundant network device undergoing an upgrade or a reboot of its control plane. A non-redundant network device may operate hitless, or near hitless, operation even when its control plane is unavailable.
    Type: Grant
    Filed: November 22, 2022
    Date of Patent: January 23, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Atri Indiresan, Manas Pati
  • Patent number: 11863383
    Abstract: An exemplary method is disclosed that facilitate the on-demand creation of an exemplary instrumented network device in a cloud infrastructure, remote server, evaluation platform, or customized testing server and to form a stack between the instrumented network device as a debug network device and a target network device. The control plane of the target network device then switches over, via a switchover operation, to the control plane of the debug network device, while the data-plane of the target network device continues to operate. Once switched over, the instrumentation (e.g., hardware or software) of the control plane or debug network device facilitates the debug, optimization, profile, and/or recovery of the physical network device, even in a live network.
    Type: Grant
    Filed: June 27, 2022
    Date of Patent: January 2, 2024
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Atri Indiresan
  • Patent number: 11822437
    Abstract: Embodiments of the present disclosure are directed to dynamic shadow operations configured to dynamically shadow data-plane resources in a network device. In some embodiments, the dynamic resource shadow operations are used to locally maintain a shadow copy of data plane resources to avoid having to read them through a bus interconnect. In other embodiments, the dynamic shadow framework is used to provide memory protection for hardware resources against SEU failures. The dynamic shadow framework may operate in conjunction with adaptive memory scrubbing operations. In other embodiments, the dynamic shadow infrastructure is used to facilitate fast boot-up and fast upgrade operations.
    Type: Grant
    Filed: February 3, 2023
    Date of Patent: November 21, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Patent number: 11765254
    Abstract: Embodiments of the present disclosure are directed to protocol state transition and/or resource state transition tracker configured to monitor, e.g., via filters, for certain protocol state transitions/changes or host hardware resource transitions/changes when a host processor in the control plane that performs such monitoring functions is unavailable or overloaded. The filters, in some embodiments, are pre-computed/computed by the host processor and transmitted to the protocol state transition and/or resource state transition tracker. The protocol state transition and/or resource state transition tracker may be used to implement a fast upgrade operation as well as load sharing and or load balancing operation with control plane associated components.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: September 19, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Publication number: 20230185678
    Abstract: Embodiments of the present disclosure are directed to dynamic shadow operations configured to dynamically shadow data-plane resources in a network device. In some embodiments, the dynamic resource shadow operations are used to locally maintain a shadow copy of data plane resources to avoid having to read them through a bus interconnect. In other embodiments, the dynamic shadow framework is used to provide memory protection for hardware resources against SEU failures. The dynamic shadow framework may operate in conjunction with adaptive memory scrubbing operations. In other embodiments, the dynamic shadow infrastructure is used to facilitate fast boot-up and fast upgrade operations.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 15, 2023
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Patent number: 11616863
    Abstract: Embodiments of the present disclosure are directed to protocol state transition and/or resource state transition tracker configured to monitor, e.g., via filters, for certain protocol state transitions/changes or host hardware resource transitions/changes when a host processor in the control plane that performs such monitoring functions is unavailable or overloaded. The filters, in some embodiments, are pre-computed/computed by the host processor and transmitted to the protocol state transition and/or resource state transition tracker. The protocol state transition and/or resource state transition tracker may be used to implement a fast upgrade operation as well as load sharing and or load balancing operation with control plane associated components.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: March 28, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Publication number: 20230083347
    Abstract: An embodiment is directed to switchover operations with a mobile virtualized network device in a mobile device. The mobile virtualized hardware switchover operations may be used to selectively and temporarily provide virtualized control-plane operations to the data-plane of a non-redundant network device undergoing an upgrade or a reboot of its control plane. A non-redundant network device may operate hitless, or near hitless, operation even when its control plane is unavailable.
    Type: Application
    Filed: November 22, 2022
    Publication date: March 16, 2023
    Inventors: Riaz Khan, Atri Indiresan, Manas Pati
  • Patent number: 11599424
    Abstract: Embodiments of the present disclosure are directed to dynamic shadow operations configured to dynamically shadow data-plane resources in a network device. In some embodiments, the dynamic resource shadow operations are used to locally maintain a shadow copy of data plane resources to avoid having to read them through a bus interconnect. In other embodiments, the dynamic shadow framework is used to provide memory protection for hardware resources against SEU failures. The dynamic shadow framework may operate in conjunction with adaptive memory scrubbing operations. In other embodiments, the dynamic shadow infrastructure is used to facilitate fast boot-up and fast upgrade operations.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: March 7, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Patent number: 11593144
    Abstract: An embodiment is directed to switchover operations with a virtualized network device in a cloud or remote infrastructure. The virtualized hardware switchover operations may be used to selectively and temporarily provide virtualized control-plane operations to the data-plane of a non-redundant network device undergoing an upgrade or a reboot of its control plane. A non-redundant network device may operate hitless, or near hitless, operation even when its control plane is unavailable.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: February 28, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Atri Indiresan, Manas Pati
  • Patent number: 11546275
    Abstract: An embodiment is directed to switchover operations with a mobile virtualized network device in a mobile device. The mobile virtualized hardware switchover operations may be used to selectively and temporarily provide virtualized control-plane operations to the data-plane of a non-redundant network device undergoing an upgrade or a reboot of its control plane. A non-redundant network device may operate hitless, or near hitless, operation even when its control plane is unavailable.
    Type: Grant
    Filed: September 23, 2020
    Date of Patent: January 3, 2023
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Atri Indiresan, Manas Pati
  • Patent number: 11537432
    Abstract: Embodiments of the present disclosure are directed to dynamic shadow operations configured to dynamically shadow data-plane resources in a network device. In some embodiments, the dynamic resource shadow operations are used to locally maintain a shadow copy of data plane resources to avoid having to read them through a bus interconnect. In other embodiments, the dynamic shadow framework is used to provide memory protection for hardware resources against SEU failures. The dynamic shadow framework may operate in conjunction with adaptive memory scrubbing operations. In other embodiments, the dynamic shadow infrastructure is used to facilitate fast boot-up and fast upgrade operations.
    Type: Grant
    Filed: August 15, 2019
    Date of Patent: December 27, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Publication number: 20220407775
    Abstract: An exemplary method is disclosed that facilitate the on-demand creation of an exemplary instrumented network device in a cloud infrastructure, remote server, evaluation platform, or customized testing server and to form a stack between the instrumented network device as a debug network device and a target network device. The control plane of the target network device then switches over, via a switchover operation, to the control plane of the debug network device, while the data-plane of the target network device continues to operate. Once switched over, the instrumentation (e.g., hardware or software) of the control plane or debug network device facilitates the debug, optimization, profile, and/or recovery of the physical network device, even in a live network.
    Type: Application
    Filed: June 27, 2022
    Publication date: December 22, 2022
    Inventors: Riaz Khan, Atri Indiresan
  • Patent number: 11405272
    Abstract: An exemplary method is disclosed that facilitate the on-demand creation of an exemplary instrumented network device in a cloud infrastructure, remote server, evaluation platform, or customized testing server and to form a stack between the instrumented network device as a debug network device and a target network device. The control plane of the target network device then switches over, via a switchover operation, to the control plane of the debug network device, while the data-plane of the target network device continues to operate. Once switched over, the instrumentation (e.g., hardware or software) of the control plane or debug network device facilitates the debug, optimization, profile, and/or recovery of the physical network device, even in a live network.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: August 2, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Atri Indiresan
  • Publication number: 20220159102
    Abstract: Embodiments of the present disclosure are directed to protocol state transition and/or resource state transition tracker configured to monitor, e.g., via filters, for certain protocol state transitions/changes or host hardware resource transitions/changes when a host processor in the control plane that performs such monitoring functions is unavailable or overloaded. The filters, in some embodiments, are pre-computed/computed by the host processor and transmitted to the protocol state transition and/or resource state transition tracker. The protocol state transition and/or resource state transition tracker may be used to implement a fast upgrade operation as well as load sharing and or load balancing operation with control plane associated components.
    Type: Application
    Filed: February 1, 2022
    Publication date: May 19, 2022
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Publication number: 20220094645
    Abstract: An embodiment is directed to switchover operations with a mobile virtualized network device in a mobile device. The mobile virtualized hardware switchover operations may be used to selectively and temporarily provide virtualized control-plane operations to the data-plane of a non-redundant network device undergoing an upgrade or a reboot of its control plane. A non-redundant network device may operate hitless, or near hitless, operation even when its control plane is unavailable.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 24, 2022
    Inventors: Riaz Khan, Atri Indiresan, Manas Pati
  • Publication number: 20220091870
    Abstract: An embodiment is directed to switchover operations with a virtualized network device in a cloud or remote infrastructure. The virtualized hardware switchover operations may be used to selectively and temporarily provide virtualized control-plane operations to the data-plane of a non-redundant network device undergoing an upgrade or a reboot of its control plane. A non-redundant network device may operate hitless, or near hitless, operation even when its control plane is unavailable.
    Type: Application
    Filed: September 23, 2020
    Publication date: March 24, 2022
    Inventors: Riaz Khan, Atri Indiresan, Manas Pati
  • Patent number: 11272042
    Abstract: Embodiments of the present disclosure are directed to protocol state transition and/or resource state transition tracker configured to monitor, e.g., via filters, for certain protocol state transitions/changes or host hardware resource transitions/changes when a host processor in the control plane that performs such monitoring functions is unavailable or overloaded. The filters, in some embodiments, are pre-computed/computed by the host processor and transmitted to the protocol state transition and/or resource state transition tracker. The protocol state transition and/or resource state transition tracker may be used to implement a fast upgrade operation as well as load sharing and or load balancing operation with control plane associated components.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: March 8, 2022
    Assignee: Cisco Technology, Inc.
    Inventors: Riaz Khan, Peter Geoffrey Jones
  • Patent number: 11190511
    Abstract: Techniques are disclosed relating to generating authentication information independent of user input. In some embodiments, an authentication application repeatedly performs operations to authenticate a client application to one or more hosts of a server system during an automated tasks. In some such embodiments, an instance of the operations includes receiving, from the client application, a request to generate authentication information. In response to the request, the authentication application may retrieve authentication data for the user and, independent of user input, generate an item of authentication information based on the authentication data. The authentication application may then output the item of authentication information to the client application, where the item of authentication information is usable by the client application to authenticate to at least one of the one or more hosts.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 30, 2021
    Assignee: salesforce.com, inc.
    Inventors: Jagadeesh Kunda, Ariel Anant Chavan, Qian Han, Yifan Wang, Kamran Riaz Khan, Vishal Agarwal
  • Publication number: 20210227054
    Abstract: Embodiments of the present disclosure are directed to protocol state transition and/or resource state transition tracker configured to monitor, e.g., via filters, for certain protocol state transitions/changes or host hardware resource transitions/changes when a host processor in the control plane that performs such monitoring functions is unavailable or overloaded. The filters, in some embodiments, are pre-computed/computed by the host processor and transmitted to the protocol state transition and/or resource state transition tracker. The protocol state transition and/or resource state transition tracker may be used to implement a fast upgrade operation as well as load sharing and or load balancing operation with control plane associated components.
    Type: Application
    Filed: January 21, 2021
    Publication date: July 22, 2021
    Inventors: Riaz Khan, Peter Geoffrey Jones