BCM78900 [Broadcom]

The Broadcom® BCM78900 family is a class of high-radix, high-bandwidth network switching devices supporting up to 64 × 800GbE, 128 × 400GbE, or 256 × 200GbE ports. The device family features a maximum of 64 integrated Peregrine SerDes cores, each with eight integrated 106-Gb/s PAM4 SerDes transceivers and associated PCS for native support of numerous physical connectivity options, enabling a broad range of media, speed and reach. The BCM78900 delivers high-bandwidth, glueless network connectivity of up to 51.2 Tb/s on a single chip.

The BCM78900 is a high-performance and high-capacity device designed to meet the requirements for next-generation data center and cloud computing environments. The BCM78900 architecture delivers complete L2 and L3 switching, routing, and tunneling capabilities at line rate and maximum port density, with low power and latency. Software compatibility is maintained across the StrataXGS® product portfolio to simplify customer designs and reduce customer time-to-market.

As server interfaces transition to higher Ethernet speeds and virtualization continues to increase link utilization, data center networks demand switches with dense 50GbE to 800GbE connectivity at the edge and aggregation layers. With up to 64 × [PM8x100] SerDes and flexibility in configuring 50GbE, 100GbE, 200GbE, 400GbE, and 800GbE ports, a single BCM78900 switching chip can be used to build scalable, cost-effective leaf, spine, blade, and aggregation switches across the entire data center.

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