#optics
- 4 min read
Co-Packaged Optics Goes Mainstream: The Optics Bill Gets Rewritten
NVIDIA's Spectrum-X Photonics hit full production in August. Why moving the optics onto the switch package matters for power, reliability, and the supply chain, and the CPO-vs-NPO fight coming for Rubin Ultra scale-up.
#networking#optics#cpo#supply-chain#power
- 4 min read
Fat Trees, Leaf-Spine, and How Many Switches You Actually Need
A worked example of sizing an 8,192-GPU scale-out fabric: rails, radix, oversubscription, switch counts, and the optics bill nobody budgets for.
#networking#gpu-clusters#fabric#planning#optics