Broadcom confirmed commercial deliveries of Bailly, the industry’s first 51.2 Tbps co-packaged optics (CPO) Ethernet switch. The product integrates eight silicon photonics based 6.4-Tbps optical engines with Broadcom’s StrataXGS Tomahawk 5 switch chip.
Compared to conventiOnal switches with pluggable transceivers, Bailly’s CPO interconnect promises 70% lower power consumption and delivers an 8x improvement in silicon area efficiency.
Bailly integrates hundreds of optical components and hundreds of millions of transistors in a single optical engine. The high degree of integration enables the placement of the optical engines on a common substrate with complex logic ASICs minimizing the need for signal conditioning circuitry.
51.2-Tbps CPO Switch Product Highlights:
- Broadcom 51.2-Tbps StrataXGS Tomahawk 5 switch silicon
- Broadcom 6.4T-FR4 Bailly SCIP optical engines with Broadcom Fiber Connector (BFC) for CPO systems
- 4RU system design with high-efficiency air cooling to deliver 128 ports of 400G
- FR4 connectivity externally fiber-coupled with 128 duplex LC optical connectors
- CPO engine to front-panel routing supports traditional single-mode fiber
- System design compatible to support multiple remote laser modules (RLM) for field replaceability
- More than 70% optical interconnect power consumption savings compared to standard pluggable optics solutions
Broadcom notes that conventional pluggable optical transceivers consume approximately 50% of system power and constitute more than 50% of the cost of a traditional switch system. Bailly’s high degree of integration provides the lowest latency, highest bandwidth density, lowest power, and lowest cost solution for building large-scale, power-efficient AI clusters.
“As AI clusters demand higher bandwidth density, lower power consumption and lower latency, we are pleased to announce delivery of the industry’s first 51.2-Tbps CPO switch,” said Near Margalit, Ph. D., vice president and general manager of the Optical Systems Division at Broadcom. “Bailly will enable hyperscalers to deploy lower-power, cost-efficient, large-scale AI and compute clusters. Broadcom’s technology leadership and manufacturing innovations help Bailly deliver 70% better power efficiency and ensure an optical I/O roadmap that can walk in tandem with the future bandwidth and power needs of AI infrastructure.”
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Filmed at OCP Summit 2023 (#OCPSummit23) in San Jose.
