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Abstract: The Data Plane Programming task in GN4-3 has focuses in two use cases: simple DDoS identification and In Band Telemetery usong Telemetry using the P4 programming language. The talk reports the ongoing INT experience, providing new insight in network behaviour and challenges on data collection and presentation.
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Abstract: Programmable data plane platforms like Tofino-based switches and FPGA linecards enable the implementation of new solutions for network traffic handling. The presentation will report the experience of WP6 Data Plane Programming task in the use of “sketches” algoritms algorithms implemented directly in the data plane for DDoS traffic detection and traffic monitoring. The sketch structures provide memory-efficient collection of summarised traffic statistics and have interesting benefits in comparison to the other monitoring techniques. They allow to process all incoming packets at wire speed ,because a sketch requires a very limited set of actions to be performed for every packet. This implies that all processed packets can contribute to traffic statistics without any performance penalty. Sketches are a great tool for scalable, fine-grained and millisecond or lower latency inline on-switch network analytics. Benefits, usage use-cases and limitation of P4-based sketch structures deployment will be summairzed basied summarised based on our implementation and testing in Tofino switch chip.
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AmLight operates as an SDN network since 2014 and is being migrated to a white-box infrastructure to support P4Runtime and In-band Network Telemetry (INT). In 2018, Florida International University (FIU) was funded by NSF to evalute evaluate telemetry opportunities over AmLight links to enable real-time monitoring of data science flows, including the Vera Rubin Observatory’s flows formerly known as Large Synoptic Survey Telescope (LSST).
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