PHY Layer
A PHY is a physical layer device implemented as an integrated circuit; A hardware PHY chip is the physical implementation of the OSI Physical Layer, converting digital data from the MAC into real electrical or optical signals.
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Networking Quick Reference Cheat Sheet
A fast, high‑value reference for networking fundamentals, protocols, ports, cabling, and standards.
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Ethernet Standards (IEEE 802.3)
Ethernet is the dominant LAN technology used worldwide. The IEEE 802.3 standard defines how Ethernet operates at the physical and…
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