Broadcom announced that its Jericho4 Ethernet switch router platform, designed for next-generation artificial intelligence infrastructure, has begun shipping. Designed to connect clusters of over one million XPUs (Extended Processing Units) across data centers, this new platform not only delivers industry-leading bandwidth, encryption security, and lossless performance, but also enables the cross-regional, large-scale development of distributed AI computing.
As the scale and complexity of AI model operations rapidly expand, single data centers are increasingly unable to handle the increased power consumption and computing demands. This has driven the industry to seek distributed computing architectures that can connect multiple data centers and even span different regions. Jericho4 is a key technology developed to respond to this trend.
Jericho4 supports up to 36000 HyperPorts, each with a transmission rate of 3.2 Tbps, and features a deep buffering mechanism, line-speed MACsec encryption, and RoCE lossless transmission capabilities over 100 kilometers, significantly breaking through the physical limitations of previous high-performance network architectures.
Among them, Jericho4's 3.2T HyperPort technology integrates four 800G Ethernet ports into a single logical connection, eliminating traditional load balancing bottlenecks and increasing available efficiency by up to 70%, making the packet traffic path within large data centers more simplified.
Jericho4 also supports full-line-speed MACsec encryption on each port, providing high-strength data transmission security protection. It is suitable for real-time synchronization between cross-regional data centers, model training, and data exchange of massive parameters, without causing performance degradation even in high-traffic or extreme computing scenarios.
Jericho4 utilizes a 3nm process and integrates Broadcom's proprietary 200G PAM4 SerDes transmission technology, enabling high-performance, low-power data transmission with enhanced signal coverage. This also means Jericho4 eliminates the need for additional components like retimers, simplifying system design, reducing overall costs, and improving stability.
Jericho4 fully complies with the Ultra Ethernet standard established by the Ultra Ethernet Consortium (UEC), ensuring interoperability with standard-based Ethernet ecosystem products, including NICs (network interface cards), switches, and various software stacks. This not only helps promote the development of open AI architectures, but also accelerates the industry's progress toward heterogeneous system integration and shared computing power.
With Broadcom's previously launchedTomahawk 6 and Tomahawk Ultra chip seriesJericho4 will further complement Broadcom's complete Ethernet product layout from single racks, high-density clusters, to multi-data centers. This means that whether training generative AI models with multi-terabyte parameters or running scientific computing scenarios that require ultra-high bandwidth real-time processing, a more flexible and stable distributed deployment model can be achieved through the Jericho4 platform.
