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Ethernet at NANOG 92
ctober 2024 Ethernet has been the mainstay of much of the networking environment for almost 50 years now, but that doesn't mean that it's remained unchanged over that period. The evolution of this technology has featured continual increases in the scale of Ethernet networks, increasing in capacity, reach and connections.
Figure 1 - Switch Capacity over Time - From “Progress update on IEEE’s next generation Ethernet project (P802.3dj – 800 GbE & 1.6 TbE)” by Mark Nowell - Cisco Systems, NANOG 92 This is achieved by using more complex digital signal processors, which require increased gate counts on the asic chips and also generally need more power to operate, which in turn imposes some constraints on the physical packaging of the network interface devices. Even higher speeds appear to rely on the use of as-yet undefined silicon chip technologies that can offer the combination of high yield, reliable operation, increased gate density and more efficient power management.
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