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US Patent 11909656 In-network decision for end-server-based network function acceleration

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Contents

Is a
Patent
Patent
1

Patent attributes

Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
1
Patent Number
119096561
Patent Inventor Names
Sarit Mukherjee1
Hyunseok Chang1
Limin Wang1
Date of Patent
February 20, 2024
1
Patent Application Number
181554161
Date Filed
January 17, 2023
1
Patent Citations
‌
US Patent 8937865 Scheduling traffic over aggregated bundles of links
1
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US Patent 9092269 Offloading virtual machine flows to physical queues
1
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US Patent 9160650 Enhanced flow entry table cache replacement in a software-defined networking switch
1
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US Patent 9185015 Application aware elephant flow identification
1
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US Patent 9379973 Binary compatible extension architecture in an openflow compliant network environment
1
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US Patent 9477604 Caching of look-up rules based on flow heuristics to enable high speed look-up
1
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US Patent 9686200 Flow cache hierarchy
1
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US Patent 9762492 Data flow segment optimized for hot flows
1
...
Patent Primary Examiner
‌
Hieu T Hoang
1
CPC Code
‌
H04L 47/11
1
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H04L 47/2483
1
Patent abstract

A CPU implements a virtual network function (VNF) associated with flow processing and can offload at least some of the flow processing to a hardware accelerator. A module (e.g., TOR switch), external to the software-based processor and the hardware accelerator, examines packet flows and determines (e.g., using a top-K elephant-flow-detection algorithm) which ones are more suitable for offloading from the software-based processor to the hardware accelerator than others. The external module communicates the relative suitability for offloading to the CPU using packet tags or out-of-band messaging, and the CPU uses the relative suitability to determine which flows to offload or onload. In some implementations, the CPU can instruct the external module to change the value of K used in the algorithm.

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