NetXtreme® E-Series 50G Multi-Host Ethernet Controller

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Based on Broadcom’s scalable 10/25/50/100G Ethernet controller architecture, NetXtreme® E-Series controllers can be used to build highly-scalable, feature-rich networking solutions in servers for cloud-scale applications.

NetXtreme® E-Series addresses the performance and service demands of mega-scale data center networks for high throughput and advanced flow processing. Features such as TruFlow™ increase VM density up to 50%, freeing more CPU cycles for additional virtual machines. On-chip tunneling protocol processing for Geneve, VXLAN, and NVGRE provides up to a 5X throughput increase while lowering CPU utilization up to 90% compared to software-only solutions. NetXtreme® E-Series controllers also support advanced networking technologies such as SDN and NFV, to facilitate the management of cloud networks and to enable service provider solutions.


  • Standards-compliant 10/25/40/50G SFP+, SFP28 and QSFP28 support with 50MPPS full-duplex throughput
  • LOM-able single-chip solution optimized for mega-scale data center and application workloads
  • Multi-host support on the PCIe interface for up to four hosts
  • NIC partitioning supporting 16 physical functions (PFs)
  • TruFlow™ engine for intelligent flow processing to increase server VM density and accelerate vSwitch processing
  • New end-to-end congestion avoidance and management to anticipate and eliminate congestion before it happens
  • Support for advanced networking technologies including RoCE, SDN, NFV and virtualization
  • Root of Trust security for enhanced network security protection from malicious attacks
  • TruManage™ enhances server manageability and security for data center deployments


  • LAN on Motherboards
  • Servers
  • Software Defined Networking (SDN)
  • Network Function Virtualization (NFV)

Lifecycle Status


Specification Value
Lifecycle Active
Distrib. Inventory No
Ordering Part # BCM57452A1KFSBG
ASIC 57452
Link-Speeds 50/40/25/10Gb
Ports 4
TruFlow™ Yes
TruManage™ Yes
Smart Congestion Control Yes
RoCEv2 Yes
Multi-Host Yes
Smart NICs No
FAQs1 i


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