400G Leaf and Spine solutions for Enterprise, Cloud, SP and I/O intensive environments offering high Performance and low power

The Arista 7050X4 are members of the Arista 7050X series and key components of the Arista portfolio of data center switches. Businesses are embracing digital technologies at a much faster pace than ever before due to the shift in collaborating using online conferencing tools. Most Enterprise companies are offering more products and services online, analyzing data to gain deeper insights and embracing upcoming technologies like AI/ML to improve overall productivity. The key to these innovations being made possible is because of investments in state of the art data centers, where data is stored, processed and analyzed globally.

The adoption of high performance servers using virtualization and containers with increasingly higher network bandwidth is accelerating the need for higher density switching in both the leaf and spine tiers of modern networks. The Arista 7050X4 Series high performance flexible data center switches provide 100G and 400G Ethernet and are loaded with features for wire speed L2 and L3, combine extensive automation with programmability, low latency and offer multiple generations of consistency for software driven cloud networking.

Arista 7050X4 Series Introduction

Arista 7050X4 Series Introduction

The 7050X4 supports a flexible combination of speeds including 10G, 25G, 40G, 100G, 200G, and 400G in compact form factors that allows customers to design networks to accommodate the myriad different applications and east-west traffic patterns found in modern data centers whilst providing investment protection.

7050X4 Series
Description Arista 7050X4 Series fixed-configuration leaf and spine switches
Switching Throughput 12.8 Terabits/sec
Maximum Forwarding Rate 5.3 Bpps
400G Interfaces Up to 32
200G Interfaces Up to 64
100G Interfaces Up to 128
50G Interfaces Up to 144
10/25G Interfaces Up to 128
Rack Space 1RU
400G Typical Power 10W per port
Hot Swap Power and Fans Yes
Reversible Airflow Yes


The 7050X4 supports a rich set of EOS features that are also supported on other Arista 7050X-Series systems. Operational and feature consistency lowers the qualification time and enhancements include Single Pass VXLAN Routing for network segmentation, Dynamic Load Balancing (DLB) for optimized path selection and the addition of Network Address Translation (NAT).

High-Performance 10/25/40/100/200/400GbE leaf-spine

  • High density 400G in compact 1 RU
  • Flexible 100G, 200G and 400G support
  • Up to 12.8 terabits per second
  • Up to 64 x 200G or 32 x 400G
  • Up to 128 x 10G, 25G or 144x 50G
  • Up to 5.3 billion packets per second
  • Wire speed L2 and L3 forwarding
  • Latency from 900ns

Optimized for DC Designs

  • VXLAN and EVPN
  • 128K MAC entries
  • 800K/500K* IPv4/v6 Routes
  • 128-way ECMP for scale-out networks
  • Up to 320K/80K IPv4/v6 Host Routes
  • 132MB integrated intelligent buffer with dynamic buffer allocation

Datacenter Optimized

  • 32 x 400G ports with under 10W / port
  • Over 94% efficient power supplies
  • 1+1 redundant & hot-swappable power
  • N+1 redundant & hot-swappable fans
  • Data center optimized airflow
  • Tool less rails for simple installation

Arista EOS™

  • Single binary image for all products
  • Fine-grained truly modular network OS
  • Stateful Fault Containment (SFC)
  • Stateful Fault Repair (SFR)
  • 64-bit EOS
  • Full Access to Linux shell and tools
  • Extensible platform - bash, python, C++, GO, Openconfig

Advanced Traffic Control, Provisioning and Monitoring

  • CloudVision
  • Zero Touch Provisioning (ZTP)
  • LANZ for microburst detection*
  • DANZ Advanced Mirroring for visibility
  • sFlow
  • INT and GREEN-T for In-Band Telemetry*
  • Self-configure and recover from USB
  • Traffic aware ECMP and UCMP

7050X4 Series Technical Specifications

Description 32-Port 400G OSFP and 2 SFP+ 32-Port 400G QSFP-DD and 2 SFP+
Maximum 400G Ports 32 32
Maximum 200G Ports 64 64
Maximum 100G Ports 128 128
Maximum 50G Ports 128 128
Maximum 40G Ports 64 64
Maximum 25G Ports 128 128
Maximum 10G Ports 128+2 128+2
400G Ports 32 x OSFP 32 x QSFP-DD
SFP+ Ports 2 2
L2/L3 Throughput 12.8 Tbps 12.8 Tbps
L2/L3 PPS Up to 5.3 Bpps Up to 5.3 Bpps
Latency 900ns 900ns
Typical Power Draw 353W 353W
AC and DC Yes Yes
Total System Buffer 132MB 132MB
RU 1 1
CloudVision Yes Yes
Smart System Upgrade Yes* Yes*
ZTP Yes Yes
VM Tracer Yes Yes
AEM Yes Yes
LANZ Yes* Yes*
Hitless Speed Changes Yes Yes
Airflow F/R or R/F F/R or R/F


* Not yet supported in EOS

Common system resources:
Resources 7050X4 Series
MAC Table Size


Maximum v4/v6 Host Routes 320K / 80K
Maximum IPv4 Route Prefixes 800K
Maximum IPv6 Route Prefixes 500K
Maximum Multicast Groups 128K max, with 4K unique groups
Maximum LAG Groups 128 (In breakout mode)
Maximum LAG Members 64 Ports
Maximum ECMP Fanout 128-way

* All resource values are maximum hardware capacity