Silicon One (G200)
The unified-architecture silicon hyperscalers have adopted to build Ethernet-based AI backend networks.
A 51.2 Tbps single switching processor — the ASIC underpinning the Nexus 9000 and Cisco routing systems. It delivers deterministic low-latency, low-power design optimized for AI/ML spine and leaf roles.
What Is Silicon One
Cisco Silicon One is a networking silicon family that unifies routing and switching in a single architecture. The G200 is its top-tier generation, powering webscale and AI backend networks on a 51.2 Tbps single switching processor. Adopted by multiple hyperscalers for Ethernet-based AI clusters, this proven silicon is the common foundation of Nexus 9000 switches and Cisco 8000 routing systems.
Key Capabilities
Unified architecture
Consolidates routing and switching on one silicon architecture, reducing operations and validation burden
AI-optimized low latency
Deterministic low-latency, low-power design optimized for AI/ML spine and leaf
Flexible port configurations
512× 112G SerDes flexibly configure anything from 64×800GE to 512×100GE
Power efficiency (LPO)
Linear Pluggable Optics support reduces optics power consumption
Key Specifications
| Item | Specification |
|---|---|
| Process | 5nm |
| Capacity | 51.2 Tbps full-duplex single switching processor |
| SerDes | 512× 112G |
| Port configurations | 64×800GE to 512×100GE |
| Systems | Nexus 9000 · Cisco 8223 (51.2T routing system) |
What It's Used For
Hyperscale AI backends
Spine and leaf silicon for large Ethernet-based AI clusters
Distributed AI routing
51.2T scale-out routing connecting data centers (Cisco 8223)
Webscale data centers
Large infrastructures standardizing routing and switching on a single architecture