Broadcom Ships Tomahawk 4, Industry’s Highest Bandwidth Ethernet Switch Chip at 25.6 Terabits per Second - Seite 2

“Tomahawk 4 is an engineering tour de force, packing an unprecedented number of serdes into a monolithic 7nm chip,” said Bob Wheeler, principal analyst, The Linley Group. “As a result, Broadcom is once again first in delivering the next switch density, which hyperscalers need as they deploy 400G Ethernet.”

Tomahawk 4 accelerates the adoption of 100/200/400GbE Ethernet solutions at a point where optics utilizing 50G PAM4 electrical connectivity are shipping in high volumes.  Products from Broadcom’s Optical Systems Division, which offers a suite of optical interconnect solutions supporting 50G PAM4 and 100G PAM4 optical data rates, complement Broadcom’s switch chips. The combination of switches and pluggable optics from Broadcom provides a complete system-level solution with plug-and-play functionality.

StrataXGS Tomahawk 4 Series Key Benefits:

• Enables the next generation of high-throughput, low latency hyperscale networks with 64 ports of 400GbE switching and routing.
   
• World’s highest radix of 100GbE ports: 256 ports supported on a single chip, enabling low-latency, single-hop networks for massive alternative compute clusters.
   
• Robust connectivity using 512 instances of the industry’s highest performance and longest-reach 50G PAM4 SerDes core, enabling long-reach East-West optical links and Direct-Attached-Copper in-rack cabling in the data center.
   
• The industry’s most advanced 25.6Tbps shared-buffer architecture, offering up to 5X higher incast absorption and providing the highest performance and lowest end-to-end latency for RoCEv2 workloads.
   
• New advanced load balancing mechanisms, virtually eliminating hash polarization and providing extremely efficient, controllable link utilization.
   
• Advanced congestion management, enabling new traffic management paradigms.
   
• Industry-leading instrumentation including IFA 2.0 for inband telemetry, postcards for out-of-band telemetry, SerDes link quality meters, and visibility into all on-chip packet drops and congestion events.
   
• Four 1 GHz ARM processors for high-bandwidth, fully-programmable streaming telemetry and sophisticated embedded applications such as on-chip statistics summarization.
   
• Implemented with unparalleled power efficiency in a monolithic 7nm die.

Broadcom also announced the introduction of Broadcom Open Network Switch APIs (OpenNSA), opening its SDK APIs for StrataXGS and StrataDNX products. Multiple open source network operating system initiatives are underway in the disaggregation ecosystem, focused on hyperscale and service provider markets. OpenNSA enables these initiatives on merchant silicon and allows the larger community to build on top of these efforts. OpenNSA also expands Open Compute Project efforts, like Switch Abstraction Interface (SAI), by simplifying the process of translating SAI APIs to Broadcom SDK APIs. Moreover, OpenNSA accelerates the SDN ecosystem by enhancing the toolset available for the developer community.