BCM56780A0KFSBG [Broadcom]

Overview

The Broadcom® BCM56780 family is a class of high-performance, non-blocking network switching devices supporting compiler-based programmability of forwarding and instrumentation functions. The device family features up to 160 lanes of 50G PAM4 SerDes. Port speeds of 10, 25, 40, 50, 100, 200, and 400GbE can be simultaneously supported without the need for external PHYs. The BCM56780 delivers high bandwidth, glueless network connectivity up to 8.0 Tb/s on a single chip.

The BCM56780 is a family of Ethernet switches designed to address performance, capacity, and service requirements for next-generation datacenter and cloud computing environments, as well as high-bandwidth enterprise and mobile network applications. The BCM56780 architecture delivers complete, user-programmable forwarding and instrumentation capabilities at a very high port density, while maintaining minimum power, latency, and board footprint. SDK6 APIs and Broadcom’s advanced SDKLT are provided to simplify customer designs and reduce customer time-to-market.

The BCM56780 has extensive features to address the rapidly increasing scale of datacenter network deployments and distributed computing applications. These include flexible in-band and streaming telemetry, large-scale forwarding databases with flexible allocations to allow tailoring to the required application, and support for the latest in datacenter protocol technologies with hooks to allow for future proofing. To achieve high-network utilization, the BCM56780 features advanced multipathing with highly flexible member selection schemes.

With the BCM56780 device, customers can build datacenters with higher node counts and greater levels of server utilization, while simultaneously improving per-port power efficiency. The BCM56780 is built using state-of-the-art silicon process technology and incorporates advanced power management features, such as automatic and compiler-driven power-down of internal-chip resources and adaptive-voltage scaling.

Applications

• Datacenter programmable Top-of-Rack (ToR) switch
• Datacenter leaf/spine
• Core aggregation
• Switch blade in a server chassis
• Line card and fabric in a switch chassis
• Border/DCI switch
• Gateway

Features

• 160 × 50G PAM4 SerDes configuration.
• Flexible port configurations: 10GbE to 400GbE support
with runtime reconfigurability (Flexport™).
• Oversubscription to balance power with bandwidth
requirements.
• Low pin-to-pin latency in cut-through and
store-and-forward modes.
• Multistage field processor processing using flexible
tiles.
• Large-scale forwarding and lookup tables are flexibly
allocated.