AI infrastructure networking is approaching a physical turning point as the copper links that tie GPUs together inside a rack strain under ever-faster signaling speeds. The move to light-based interconnects could redraw the boundaries of what counts as a single AI system. Cisco Systems Inc. is pressing that transition on several fronts, from new silicon […] The post Copper’s days are numbered inside AI racks as Cisco bets on optics appeared first on SiliconANGLE.