Broadcom Tomahawk 5 BCM56990 400GbE Switch ASIC
Brand: Broadcom | Category: Network Switches
SKU: BCM56990 | Part #: BCM56990 | MPN: BCM56990
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About the Broadcom Tomahawk 5 BCM56990 400GbE Switch ASIC
L2/L3 fabric management via BGP/OSPF, VXLAN/EVPN, and OpenFlow determines your data center fabric role — and the Broadcom Tomahawk 5 BCM56990 400GbE Switch ASIC is engineered to anchor hyperscale environments. This cutting-edge switch ASIC delivers 51.2 Tbps maximum throughput across 128 x 400GbE ports, making it the platform of choice for network architects and infrastructure teams scaling beyond petabit-per-second capacity demands. Built on 5nm FinFET process technology, the BCM56990 combines extreme port density with intelligent packet handling through dual switching fabric modes — cut-through and store-and-forward — to optimize latency and reliability simultaneously.
Broadcom's design prioritizes operational resilience with redundant hot-swap fans and power supplies, while the 64 MB packet buffer memory ensures consistent performance under burst traffic. Management flexibility spans OpenFlow, SNMP, and NetConf protocols; protocol support includes IPv4, IPv6, MPLS, QoS, policers, and ACLs for granular traffic control. At typical consumption of ~250W and operating across 0–50°C, the BCM56990 fits standard 1U or 2U rack deployments in dense data centers. Broadcom backs the hardware with a lifetime warranty, protecting your long-term infrastructure investment. Network engineers and IT procurement teams evaluating next-generation switch ASICs will find the BCM56990 part number delivers uncompromised performance at scale.
Enterprise Deployment Scenarios
- Hyperscale cloud provider spine fabrics requiring 51.2 Tbps fabric capacity and 128-port 400GbE density
- High-performance computing (HPC) clusters and AI data centers with ultra-low-latency cut-through switching
- Content delivery networks (CDNs) and internet exchange points (IXPs) routing massive east-west traffic volumes
- Financial trading and telemetry networks where MPLS and QoS enforcement meet petabit throughput
- Multi-tenant service provider fabrics leveraging VXLAN/EVPN and OpenFlow orchestration
Contact Omnixon Global for an RFQ on the Broadcom Tomahawk 5 BCM56990.
Technical Specifications
| Brand | Broadcom |
| Category | Network Switches |
| SKU | BCM56990 |
| Part Number | BCM56990 |
| Condition | New |
| Port Speed | 400GbE |
| Rack Units | 1U or 2U (model-dependent) |
| Fans / PSU | Redundant hot-swap |
| Warranty | Lifetime hardware warranty (vendor-specific terms) |
| Manufacturer Part Number | BCM56990 |
| Product Type | Switch ASIC (Tomahawk 5) |
| Maximum Throughput | 51.2 Tbps |
| Maximum Port Count | 128 x 400GbE |
| Switching Fabric | Cut-through, store-and-forward |
| Packet Buffer Memory | 64 MB |
| Process Technology | 5nm FinFET |
| Management | OpenFlow, SNMP, NetConf |
| Protocol Support | IPv4, IPv6, MPLS, QoS, policers, ACLs |
| Power Consumption | ~250W (typical) |
| Operating Temperature | 0–50°C |
Frequently Asked Questions about Broadcom Tomahawk 5 BCM56990 400GbE Switch ASIC
Does the Broadcom Tomahawk 5 BCM56990 400GbE Switch ASIC support our SFP transceivers?
Most enterprise switches ship without transceivers; we quote vendor-matched optics alongside the switch (Cisco-genuine for Catalyst/Nexus, HPE/Aruba-genuine for CX, Juniper-genuine for QFX/EX). Third-party MSA-compatible options are also available at lower cost — specify preference in the RFQ.
Do you provide stacking / VPC / MLAG configuration help?
Yes — our network engineers can pre-stage stacking, VPC pairs, MLAG, EVPN-VXLAN, or fabric extender configurations before shipping, or provide remote commissioning. Add commissioning to your RFQ.
What software licensing is included?
Switch software licensing varies by vendor. Cisco DNA / Cisco DCNM, Aruba CX licensing tiers, Juniper Premium, NVIDIA Cumulus — we quote the licensing tier matched to your features (BGP-EVPN, telemetry, automation). No surprises at delivery.
Is the warranty global?
Yes — manufacturer hardware warranty is global (return-to-vendor or advance replacement depending on tier). For 24x7 same-day on-site replacement, attach a SmartNet / Foundation Care / J-Care contract during quoting.