BROADCOM BCM78900

Manufacturer No:

BCM78900

Manufacturer:

BROADCOM

Package:

Description:

BCM78900: 51.2 Tb/s StrataXGS® Tomahawk® 5 Ethernet Switch Series

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In Stock :1236

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BCM78900 information

BROADCOM BCM78900 technical specifications, attributes, parameters and parts with similar specifications to BROADCOM BCM78900.

Type
Parameter

Lifecycle
Active

Bandwidth
51.2 Tb/s

Front Panel I/O
512 x 100G

Market Segment
Data Center

PHY Data Rate
106G PAM4

PHY Type
100G PAM4

RoCEv2
Yes

Sample I/O Configurations
64 x 800GbE, 128 x 400GbE, 256 x 200GbE

SerDes / GPHY
512 x 100G

Type
L3 Multilayer Switch

Download datasheets and manufacturer documentation for BROADCOM BCM78900.

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.

Features

World’s highest radix of 200GbE ports: 256 ports supported on a single chip, enabling flat, low latency AI/ML clusters
The industry’s most advanced 51.2Tbps shared-buffer architecture, providing the highest performance and lowest tail latency for RoCEv2 and other new RDMA protocols
Advanced adaptive routing, dynamic load balancing, and support for end-to-end congestion control capabilities specifically designed to handle the large, low entropy flows typical of AI/ML workloads
Support for Clos and non-Clos topologies such as torus, Dragonfly, Dragonfly+, and Megafly
Hardware-based link failover for improved network resiliency and reduced JCT

Applications

Single-chip solution for data center aggregation, edge and spine switches
Data center fixed and chassis/modular switches
AI/ML clusters
Cloud computing
Large-scale enterprise backbone

StrataXGS Tomahawk 5 Series Key Benefits

Enables the next generation of converged data center infrastructure with 64 ports of 800GbE switching and routing
Virtualization of general compute and AI/ML workloads with single-pass VxLAN routing and bridging
Unparalleled physical I/O options using 512 instances of the industry’s highest performance, most flexible, and longest-reach 100G PAM4 SerDes
High-precision PTP and SyncE time synchronization
Six on-chip ARM processors for high-bandwidth, fully-programmable streaming telemetry and sophisticated embedded applications such as on-chip statistics summarization
Unmatched power efficiency, implemented as a monolithic 5nm die

Compared to general compute and storage, AI/ML training clusters have unique communication patterns. To minimize job completion time, Tomahawk 5 adds specific features for these workloads and network topologies.

User Guide

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.

RFQ (REQUEST FOR QUOTATIONS)

Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step4：Individual Package

Step5：Anti-collision Filling

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.