The North Star Chapter of the International Council on Systems Engineering (INCOSE) is a not-for-profit membership organization founded in Minnesota to develop and disseminate the interdisciplinary principles and practices that enable the realization of successful systems across diversified business sectors.
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Dec 17, 2025 6:00 PM - 8:00 PM Central Standard Time
Ridgedale Public Library, 12601 Ridgedale Dr, Minnetonka, MN 55305
INCOSE North Star: Myths, Misnomers, and Dirty Little Secrets for Ethernet QualityDate: 17 December 2025Time: 6:00 PM - 8:00 PM Central Time
Location: Ridgedale Public Library, 12601 Ridgedale Dr. Minnetonka, MN 55305
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This presentation exposes secrets in the development and current design of Ethernet(s) and how they affect the quality (error probability) in the transferred data. It begins with an overview of Ethernet development and basic concepts. It then covers how and where errors really occur in Ethernet transmissions (spoiler: not what most people think). Topics covered include: transmission line effects, the secret (proprietary) designs of Ethernet physical layer ICs (PHYs), how PHYs and cables have secret (unknown) interactions, how Ethernet installations should be tested for Bit Error Ratio (BER) per the IEEE 802.3 standard (spoiler: commercial BER testers are ~useless), and why the coverage of Ethernet CRCs is unknown without extensive testing.
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Share, promote and advance the best of systems engineering from across the state of Minnesota while working with a world view for the benefit of humanity and the planet.
To be the preeminent authority on Systems Engineering in our region through educating our practitioners and encouraging Best Practices through our relationship with INCOSE.
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