Arista Networks Switch Quick Look Datasheet
Quick Look Datasheet

Arista 7050X3 Series Network Switch

Arista 7050X3 Series Network Switch

High Performance

  • Up to 6.4 Tbps System Capacity
  • Up to 2 Billion Packets per Second
  • Wire Speed Unicast & Mast
  • Latency as Low as 800nsec
  • High Density 25G and 100G Systems
  • Fully Shared 32MB Packet Buffer
  • Under 7W per 100G & 4W per 25G Port

Feature Rich

  • Rich L2 and L3 Features
  • VXLAN Gateway and Routing 
  • Zero Touch Provisioning
  • Network Address Translation *
  • Dynamic Load Balancing 
  • Smart System Upgrade 
  • Hitless MLAG ISSU
  • High Availability
  • DC Optimized Airflow

High Scalability

  • Wirespeed L2 and L3 Forwarding
  • Up to 32 x 100G or 128 x 25G
  • 64-Way MLAG / 128-Way ECMP
  • Scalable Leaf-Spine Designs
  • MAC 288K / IPv4 Hosts 208K
  • Host Routes up to 108K
  • Routes: 384K IPv4 / 192K IPv6

Advanced Monitoring

  • CloudVision
  • LANZ Microburst Detection 
  • AEM Proactive Management
  • IEEE 1588 Precision Timing *
  • sFlow for Network Visibility
  • VM Tracer Integration
* Not currently supported in EOS

Arista 7050X3 Series Introduction

Highly dynamic data center networks continue to evolve with the introduction of new protocols and server technologies such as containers bringing with them ever increasing bandwidth demands, accelerating the need for dense 25 and 100 Gigabit Ethernet switching in both leaf and spine tiers of modern networks. The Arista 7050X3 Series are purpose built fixed configuration 10/25GbE and 100GbE systems built for the highest performance environments, and to meet the needs of the largest scale data centers. They combine scalable L2 and L3 resources and high density with extensive automation and programmability capabilities, low latency and consistent features for scalable leaf-spine designs.

7050X3 25GbE and 100GbE Flexibility

The 7050X3 Series are a range of compact 1U wire speed switches with a choice of 25GbE SFP with 100GbE QSFP uplinks and a 100GbE system that offer up to 32 ports of wire speed forwarding, powered by Arista EOS, the worlds most advanced network operating system.

The 7050X3 Series is available in a choice of two models:
  • 7050CX3-32S - 10/25/40/50/100GbE with 32 100G QSFP interfaces
  • 7050CX3M-32S - 10/25/40/50/100GbE MACsec with 32 100G QSFP interfaces
  • 7050SX3-48YC12 - 48 10/25GbE SFP interfaces with 12 100G QSFP interfaces
  • 7050SX3-48YC8 - 48 10/25GbE SFP interfaces with 8 100G QSFP interfaces
7050CX3-32S 7050CX3M-32S 7050SX3-48YC12 7050SX3-48YC8
Arista 7050X3 Data Center Switch 7050CX3M-32S Data Center Switch Arista 7050X3 Datacenter Switch Arista 7050SX3-48YC8
32 x 100GbE 32 x 100GbE and
48 x 25GbE and 12 x 100GbE 48 x 25GbE and 8 x 100GbE

Consistent Software, Flexibility, Throughput and Performance

Each of the 7050X3 models offers multiple connectivity options that provide flexibility in building scalable leaf and spine designs. The operational flexibility offered by the entire 7050X3 series ensures suitability for a variety of deployment scenarios. The following are a selection of use cases:

  • Dense Top of Rack

    — For server racks with both 10GbE and 25GbE systems
  • 10GbE to 25GbE Migration

    — 802.3by 25GbE and Consortium compliant for seamless transition to the next generation of Ethernet performance
  • Grid / HPC

    — Designs requiring cost effective and power efficient systems to enable non-blocking or minimal over-subscription for 10G and 25G Servers
  • Leaf-Spine

    — Open standards based L2 and L3 with telemetry and visibility features
  • 100GbE Scale Out Designs

    — Small to medium locations requiring power efficiency and high density compact systems
  • ECMP Designs up to 128-way

    — Cost-effective multi-pathing using open protocols and the Arista 7300X and 7500R as 100GbE modular spine switches
  • Large Scale L2 Environments

    — Flexible resource allocations achieve higher maximum L2 scale without inefficiency associated with traditional systems

7050X3 Series Systems

Arista 7050X3 Series support hot-swappable power supplies and N+1 fan redundancy, EOS high availability, a choice of L2 and L3 multi-pathing designs and powerful EOS innovations for visibility, application level performance monitoring and virtualization.

Feature Description


Network-wide workfow automation and workload orchestration as a turnkey solution for Cloud Networking

Wirespeed VXLAN Routing *

Seamless integration between VXLAN and L2/L3 environments, physical and virtualized networks

IEEE 1588 PTP 

Build and scale accurate timing solutions with sub-microsecond accuracy

Fully Shared Packet Buffer

Advanced traffic manager with 32MB of packet buffer that is fully shared across all ports

128-way ECMP and 64-way MLAG

Improve network scalability and balance traffic across large-scale leaf-spine designs or server load balancers

Latency Analyzer 

Real time visibility of port latency and per port high watermarks to provide immediate feedback and precision monitoring

Network Address Translation *

Network Address translation with no performance impact to resolve overlapping addressing challenges without penalty

Flexible Architecture

Add support for new capabilities to the data plane for quicker deployment of new networking solutions

Dynamic Load Balancing *

Enhanced load distribution for optimal traffic distribution and link utilization for intensive data center workloads

Time Stamping *

Monitor end to end network performance with accuracy

IEEE 25GbE 802.3by

IEEE standard ensuring interoperability, long reach optics and long term investment protection
* Not currently supported in EOS

Arista EOS

Arista EOS is a modular switch operating system with a unique state sharing architecture that cleanly separates switch state from protocol processing and application logic. Built on top of a standard Linux kernel, all EOS processes run in their own protected memory space and exchange state through an in-memory database. This multi-process state sharing architecture provides the foundation for in-service-software updates and self-healing resiliency.

  7050CX3-32S 7050CX3M-32S 7050SX3-48YC12 7050SX3-48YC8


32 100G QSFP and 2 SFP+ 32 100G QSFP and 2 SFP+ 48 25G SFP and 12 100G QSFP 48 25G SFP and 8 100G QSFP

Maximum 100G Ports

32 32 12 8

Maximum 40G Ports

32 32 12 8

Maximum 10G Ports

128 128 96 56

Maximum 25G Ports

128 128 96 56

Maximum 50G Ports

64 64 24 12

Maximum System Throughput (bps)

6.4Tbps 6.4Tbps 4.8Tbps 4Tbps

Maximum Forwarding Rate (PPS)

2Bpps 2Bpps 2Bpps 1Bpps


800ns 800ns 800ns 800ns

Total System Buffer

32MB 32MB 32MB 32MB


Front-Rear or Rear-Front Front-Rear or Rear-Front Front-Rear Front-Rear or Rear-Front
Copyright © 2019 Arista Networks, Inc. All rights reserved. CloudVision, and EOS are registered trademarks and Arista Networks is a trademark of Arista Networks, Inc. All other company names are trademarks of their respective holders. Information in this document is subject to change without notice. Certain features may not yet be available. Arista Networks, Inc. assumes no responsibility for any errors that may appear in this document. August, 2019 · 11-0022-02