BCM56634B0KFSBG

Overview

The BCM56634B0KFSBG is a high-performance Layer 3 Ethernet switch ASIC belonging to the Broadcom StrataXGS Tomahawk family. It provides a switching capacity of 12.8 Tbps and integrates 128 lanes of 100 Gbps SerDes, supporting flexible port configurations including 128x100G or 64x200G. The device utilizes a 16nm process technology and features a programmable pipeline for advanced packet processing. It supports hardware offloading for overlay tunneling protocols such as VXLAN and NVGRE, ensuring efficient data center operations.

Feature Summary

• Supports flexible port configurations with native 100G and 200G capabilities via integrated high-speed SerDes.
• Enables hardware acceleration for network virtualization through offloading of VXLAN, NVGRE, and MPLS encapsulation.
• Provides programmable packet processing pipelines for customized forwarding logic and telemetry integration.

Applications

• High-density Top-of-Rack (ToR) switches in enterprise data centers
• Leaf-Spine fabric architectures requiring 100G/200G uplinks
• Core aggregation layers in large-scale cloud networks

Procurement Notes

Verify the specific silicon stepping indicated by the suffix B0 against your system compatibility requirements. Confirm RoHS compliance status and environmental ratings prior to integration. Ensure that the procurement channel provides valid traceability documentation for this specific part number to guarantee authenticity and quality assurance during deployment.

Selection Notes

Select this component when designing systems requiring 12.8 Tbps throughput with support for both 100G and emerging 200G interfaces. It is suitable for applications demanding low latency and high port density. Evaluate thermal management solutions appropriate for the 16nm process node and ensure PCB design capabilities match the required package complexity for reliable signal integrity.

Part Context

This model is part of the Tomahawk series, representing a generation of high-throughput switching engines designed for modern data center fabrics. It succeeds earlier generations by offering increased bandwidth per pin and enhanced programmability. The chip serves as the central forwarding engine for next-generation switching platforms aiming to support evolving bandwidth demands.

Replacement Considerations

Direct replacements are limited within the same product family. Consider the BCM56640 series for similar performance tiers or the BCM56472 for higher capacity requirements. Verify backward compatibility with existing software development kits and hardware reference designs before transitioning to alternative models.