--- title: "Unlock the power of scale-across with Cisco converged silicon, systems, and optics" url: https://daily.dev/posts/unlock-the-power-of-scale-across-with-cisco-converged-silicon-systems-and-optics-vlxaka4tb source_url: https://blogs.cisco.com/sp/unlock-the-power-of-scale-across-with-cisco-converged-silicon-systems-and-optics type: article source: "Cisco" published: 2026-05-28T15:05:01.821Z updated: 2026-05-28T15:21:09.934Z tags: ["networking", "cisco", "ai-infrastructure"] reading_time: 9 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Unlock the power of scale-across with Cisco converged silicon, systems, and optics **[Cisco](https://daily.dev/sources/cisco)** · 9 min read · 0 upvotes · 0 comments ## Summary Generative AI training clusters have outgrown single data centers due to power constraints, forcing GPU workloads to span multiple geographically distributed sites. This creates a new networking category called 'scale-across' — distinct from traditional DCI — that must sustain lossless, low-latency, high-bandwidth synchronous traffic between tens of thousands of GPU ports across distances of 10+ km. Scale-across demands co-design of silicon, systems, and coherent optics to address deep buffering, proactive congestion control, power efficiency, and reliability. Cisco's response includes the Silicon One P200 chip (51.2 Tbps), 400G/800G ZR/ZR+ coherent pluggables (750K+ ports shipped), and new open line systems like the Open Transport 3000 Series, with two hyperscaler design wins announced for fiscal Q3 2026 and AI order forecasts exceeding $3.6B in Q4 2026. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Cisco Silicon One P200 Powers the First 51.2T Scale-Across Routing Systems](https://daily.dev/posts/cisco-silicon-one-p200-powers-the-first-51-2t-scale-across-routing-systems-vlkv6jn3b) · Cisco · 0 upvotes · 0 comments - [The third dimension of AI networking has arrived](https://daily.dev/posts/the-third-dimension-of-ai-networking-has-arrived-4wtqwmn1w) · Cisco · 0 upvotes · 0 comments --- Tags: [#networking](https://daily.dev/tags/networking), [#cisco](https://daily.dev/tags/cisco), [#ai-infrastructure](https://daily.dev/tags/ai-infrastructure) [View this post on daily.dev](https://daily.dev/posts/unlock-the-power-of-scale-across-with-cisco-converged-silicon-systems-and-optics-vlxaka4tb)