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 next generation PCIe Gen4 based high performance compute 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 Enterprise networks. The Arista 7050X4 Series high performance flexible data center switches 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, 50G, 100G, 200G, and 400G in compact 1U and 2U form factors that allow customers to design networks to accommodate the myriad different applications and east-west traffic patterns found in modern data centers whilst providing backward compatibility to existing compute infrastructure and investment protection for the future.

7050X4 Series
Description Arista 7050X4 Series fixed-configuration leaf and spine switches 
Switching Throughput 12.8 Terabits/sec 8.0 Terabits/sec
Maximum Forwarding Rate 5.3 Bpps 2.7 Bpps 
400G Interfaces Up to 32 Up to 20 
200G Interfaces Up to 64 Up to 40 
100G Interfaces Up to 128 Up to 72
50G Interfaces Up to 144 Up to 72 
10/25G Interfaces Up to 128 Up to 72 
Buffer 132MB 82 MB
Rack Space 1RU 1RU & 2RU 
400G Typical Power 10W per port 8W per port
Hot Swap Power and Fans Yes Yes
Reversible Airflow Yes Yes* 

*Refer to the datasheet for product specific information. 


The 7050X4 Series supports a rich set of EOS features consistent with 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 10/25/40/50/100/200/400GbE 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
  • Up to 132MB integrated intelligent buffer with dynamic buffer allocation

Datacenter Optimized

  • Up to 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+ 32-Port 400G QSFP-DD and 2 SFP+ 
Maximum 400G Ports 32 32 32 
Maximum 200G Ports 64 64 64 
Maximum 100G Ports 128 128 128
Maximum 50G Ports 128 128 128 
Maximum 40G Ports 64 64 64 
Maximum 25G Ports 128 128 128 
Maximum 10G Ports 128+2 128+2 128+2 
400G Ports 32 x OSFP 32 x QSFP-DD 32 x QSFP-DD 
SFP+ Ports 2 2
L2/L3 Throughput 12.8 Tbps 12.8 Tbps 12.8 Tbps 
L2/L3 PPS Up to 5.3 Bpps Up to 5.3 Bpps Up to 5.3Bpps 
Latency 900ns 900ns 900ns 
Typical Power Draw 353W 353W TBD 
AC and DC Yes Yes Yes 
Total System Buffer 132MB 132MB 132MB 
RU 1 1
MACsec Encryption - 16 Ports 
CloudVision Yes Yes Yes
Smart System Upgrade Yes* Yes* Yes* 
ZTP Yes Yes Yes 
VM Tracer Yes Yes Yes 
AEM Yes Yes Yes 
LANZ Yes* Yes* Yes* 
Hitless Speed Changes Yes Yes Yes 
Airflow Front to Rear or Rear to Front Front to Rear 

7050X4 100/400G Systems Specifications

Description 48 x 100 SFP-DD
8 x 400 QSFP-DD
48 x 100 DSFP
8 x 400 QSFP-DD
24 x 200 QSFP56
8 x 400 QSFP-DD
48 x 100 QSFP28
8 x 400 QSFP-DD
Maximum 400G Ports 8 8 8 8
Maximum 200G Ports 16 16 16 16
Maximum 100G Ports 72 72 72 72
Maximum 50G Ports 72 72 72 72
Maximum 40G Ports 8 8 8 8
Maximum 25G Ports 72 72  72  72 
Maximum 10G Ports 72 72  72  72 
L2/L3 Throughput 8.0 Tbps 8.0 Tbps 8.0 Tbps  8.0 Tbps 
L2/L3 PPS 2.7 Bpps 2.7 Bpps  2.7 Bpps  2.7 Bpps 
Latency 900ns 900ns  900ns  900ns 
Typical Power Draw TBD TBD TBD TBD 
AC and DC Yes Yes  Yes  Yes 
Total System Buffer 82MB  82MB  82MB  82MB 
RU 1
CloudVision Yes Yes  Yes  Yes 
Smart System Upgrade Yes* Yes*  Yes*  Yes* 
ZTP Yes Yes  Yes  Yes 
VM Tracer Yes Yes  Yes  Yes 
AEM Yes Yes  Yes  Yes 
LANZ Yes* Yes*  Yes*  Yes* 
Hitless Speed Changes Yes Yes  Yes  Yes 
Airflow Front to Rear or Rear to Front  


* 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