Broadcom Introduces Jericho4 Ethernet Fabric Router to Enhance AI Infrastructure

Broadcom has launched Jericho4, an advanced ethernet fabric router for distributed AI computing, capable of interconnecting over 1 million XPUs and featuring 3.2 Tbps HyperPort technology. Manufactured on a 3nm process, Jericho4 improves efficiency, security, and scalability in data centers with full MACsec encryption and lossless RoCE transport over 100km distances. The technology reduces power consumption and costs while enhancing system reliability, making it ideal for large-scale data center operations. Jericho4 is currently sampling to customers and marks a significant step in enabling large-scale distributed AI computing networks.

Broadcom Inc. (NASDAQ: AVGO) has announced the commercial availability of Jericho4, an advanced Ethernet fabric router designed to support distributed AI workloads at multi-datacenter scale. Jericho4 is part of Broadcom's DNX product line and is capable of interconnecting over one million XPUs across geographically distributed data centers, extending the AI compute fabric beyond the physical and power limits of a single facility [1].

The Jericho4 router features Broadcom's proprietary HyperPort interface, which aggregates four 800-G lanes into a single logical link, delivering 3.2 Tbps of bandwidth. This innovative technology addresses the shortcomings of conventional ECMP load balancing methods, which introduce inefficiencies under AI workloads dominated by "elephant flows" [1].

Manufactured on a 3nm process, Jericho4 incorporates Broadcom's 200-G PAM4 SerDes, ensuring high efficiency and reduced power consumption. The router supports full MACsec encryption on every port at full speed, providing strong security without compromising performance, even at high traffic loads [1]. Additionally, Jericho4 ensures lossless RoCE transport over 100km distances, enabling truly distributed AI infrastructure unconstrained by power and space limitations at a single location [2].

The Jericho4 router is currently sampling to customers and marks a significant step in enabling large-scale distributed AI computing networks. With its advanced features and capabilities, Jericho4 is set to revolutionize the way AI infrastructure is designed and deployed, offering improved efficiency, security, and scalability in data centers [2].

References:
1. [1] https://investors.broadcom.com/news-releases/news-release-details/broadcom-ships-jericho4-enabling-distributed-ai-computing-across
2. [2] https://www.allaboutcircuits.com/news/broadcom-reveals-ethernet-fabric-router-ic-for-distributed-ai-computing/