This article presents a comprehensive, publication-ready synthesis and original exposition on the performance, implementation challenges, and mitigation strategies associated with 10 gigabit per second (10 Gb/s) Ethernet links across two converging application spaces: data-center interconnects and automotive networks. Drawing strictly from the provided literature, this manuscript integrates analytical evaluations of IPv4/IPv6 over high-speed fabrics (Gamess & Humberto, 2016), empirical and theoretical treatments of single-pair and multi-Gb/s automotive PHYs (de Besten, 2019), modulation techniques for Ethernet transmission (Olalekan, Grace & Anuoluwapo, 2020), optical reach extension methods for 10 Gb/s links (Voraparmorn et al., 2020), and electromagnetic compatibility (EMC) and shielding strategies validated for automotive camera PCBs (Karim, 2025; Leppäaho et al., 2021; Park, Lee & Kim, 2021). The article develops a unified methodological narrative that examines protocol overheads, modulation tradeoffs, physical media constraints, and EMI mitigation for reliable 10 Gb/s operation. Key contributions include (1) an analytical framework for comparing IPv4/IPv6 performance across Ethernet and InfiniBand fabrics at 10 Gb/s, (2) an extended evaluation of M-ary PAM and its applicability to automotive Ethernet, (3) a systems-level view of optical amplification and dispersion compensation for long-reach 10 Gb/s links, and (4) an in-depth treatment of shielding, PCB layout, and cable considerations required to meet automotive EMC requirements. The work concludes with nuanced discussions on limitations, potential future research directions emphasizing cross-domain harmonization, and practical design recommendations for engineers and researchers working at the intersection of high-speed communications and automotive sensing networks.

10 Gb/s Ethernet, Automotive PHY, M-ary PAM, Electromagnetic Interference, Optical Amplifiers

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