Spirent Communications has been granted a patent for a method that enhances network traffic emulation using a dual frame sequence table (FST) architecture on FPGA. This approach allows for accurate representation of high and low data rate streams, improving testing of network equipment through effective data stream management. GlobalData’s report on Spirent Communications 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 Spirent Communications, Hybrid cloud mgmt was a key innovation area identified from patents. Spirent Communications's grant share as of June 2024 was 64%. Grant share is based on the ratio of number of grants to total number of patents.
Network traffic emulation using partitioned frame sequence tables
The patent US12021729B2 outlines a method and system for emulating network traffic through the use of frame sequence tables (FSTs). The method begins with receiving a traffic profile that includes data about various streams of data, specifically their data rates in frames per second (fps). Based on this profile, the method establishes first and second switching criteria and stores relevant information in two separate FSTs. The system transmits data streams from the first FST to an output port, continuously comparing the transmitted data against the first switching criteria. Once the criteria are met, the system switches to the second FST for further data transmission. This process can be repeated, allowing for dynamic switching between the two FSTs based on real-time performance metrics.
Additionally, the system includes a user interface for inputting the traffic profile and utilizes memory circuitry, such as block RAM within a field programmable gate array (FPGA), to store the FSTs. The logic circuitry, which may include a state machine, is responsible for determining the switching criteria and managing the comparisons of transmitted data streams. The patent also specifies that the profile can contain information about over a million data streams, enhancing the system's capability to simulate complex network environments. Overall, the invention provides a structured approach to generating and managing emulated network traffic, which can be beneficial for testing and evaluating network devices.
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