Rapid7. has been granted a patent for methods and systems that enhance deep packet inspection (DPI) by optimizing batched packet processing. The approach involves stateless and stateful operations to efficiently decode network packets, create flow-hash keys, and perform DPI on a per-flow basis. GlobalData’s report on Rapid7 gives a 360-degree view of the company including its patenting strategy. Buy the report here.
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According to GlobalData’s company profile on Rapid7, Network traffic analysis was a key innovation area identified from patents. Rapid7's grant share as of June 2024 was 83%. Grant share is based on the ratio of number of grants to total number of patents.
Optimized batched packet processing for deep packet inspection
The granted patent US12047259B1 outlines a computer-implemented method and system for processing network packets through a structured approach that includes both stateless and stateful operations. The method begins by receiving a plurality of packets, which are then divided into batches based on a specified size. A stateless processing operation is performed on each batch, generating flow-hash lookup keys for the packets. Following this, a stateful processing operation divides the batch into smaller sub-batches, allowing for the grouping of packets based on their respective flows. The method culminates in a deep packet inspection (DPI) operation conducted on a per-flow basis, which can include updating flow statistics, tracking transport layer states, and performing application layer processing.
The system described in the patent includes one or more computer devices configured as a DPI server, which implements the aforementioned method. This server is capable of monitoring network traffic, selecting batches of packets for analysis, and can be integrated into various environments, including cloud computing. The system also features a timer management bookkeeping operation to manage flow data expiration and employs a multi-threaded lookup operation for efficient access to a hash table using flow-hash lookup keys. Additionally, the DPI server can implement anomaly detection algorithms and is adaptable for use in port scanning systems, enhancing its utility in network security and traffic management.
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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.
