Ciena is the only Western vendor with the full stack for scale-across networking, which frontier AI labs now need to train one model across many sites. Grid interconnection queues run three to five years and no utility can deliver 1GW in one place, so OpenAI, Anthropic, Google, xAI and Meta are spreading training across five to ten campuses per region. Interconnects then grow exponentially, with 10 sites needing 45 high-capacity links, and the network becomes part of the training fabric. x.com


