Subscribe to Blog Notification Emails

Latest Blog Post

The 400G Era

Martin Hull
by Martin Hull on Nov 9, 2021 9:29:00 AM

As an industry leader in data-driven networking, Arista’s introduction of 400G platforms in 2019 intersected the emerging needs of hyper-scale cloud and HPC customers to dramatically increase bandwidth for specific ultra-high performance applications. 

Two years later, 400G is no longer a niche technology and customers across many sectors are looking to 400G to solve networking challenges. 

Customer requirements cross a diverse set of customers making it clear that a ‘one size fits all’ approach is insufficient - Arista is proud of building a comprehensive and holistic portfolio of products so all customers can benefit from one of the biggest technology shifts in networking history.


Building on the success of the 7060X4 and 7368X4 are the new Arista 7060X5 and OCP Minipack2 compliant Arista 7388X5, running EOS, Fboss or SONiC. The 7388X5 is 30% more power efficient and enables 2x performance in the same density than the previous generation. The 7060X5 doubles performance enabling double the network capacity without adding complexity.


Providing up to 64 x 400G or 128 x 200G in single chip, low power and low latency systems, these new platforms are critical building blocks for constructing high bandwidth, wide-radix topologies to support large scale cloud infrastructure and for enabling rapidly expanding AI clusters and network spines with high bisectional bandwidth.

The new 7050X4 fixed and 7358X4 modular solutions build on the strength of the 7050X3 and 7300X3 series bringing 400G to the 7050X-Series. They deliver Enterprise grade features and performance with enhancements to real-time telemetry and NetDL.


Loaded with features they enable modern network operations and with support for speeds from 10G all the way to 400G the 7050X4 and 7358X4 integrate seamlessly with existing data center environments, consolidate multiple network tiers, reducing OpEx and complexity while providing a foundation for Smart NIC solutions, NVMeoF and distributed flash storage.

The new 400G systems complement the 7280R3 and 7800R3 cloud grade routers that deliver large scale routing, ultra deep buffers and a comprehensive set of features for service provider, metro, content delivery networks, data center interconnects and enterprise CDN’s linking private cloud facilities, office work spaces and the public cloud at high speed.

Arista 400G optics and cables offer the broadest range of solutions, with backwards compatibility to existing deployments as well as forward compatibility with 100G single lambda technology and 400ZR supporting multiple terabits of capacity without the need for legacy optical line systems.

Together the new products and key EOS innovations expand customer choice and flexibility to meet the bandwidth demands of emerging applications, driving topology optimization for power efficiency, capital and operational cost savings universally - with consistent features and the familiar single EOS software architecture.

The future of networking is clear - it's 400G.


400G White Paper

Arista Expanded 400G for Enterprise and Cloud Customers

Press Release


Opinions expressed here are the personal opinions of the original authors, not of Arista Networks. The content is provided for informational purposes only and is not meant to be an endorsement or representation by Arista Networks or any other party.

Martin Hull
Written by Martin Hull
As Vice President of Cloud and Platform Product Management, Martin Hull is responsible for the product management of the data center and routing product lines and for the cloud scale customers, as well as associated Systems Engineering and Sales teams. He has been at Arista since 2011, and has over 30 years experience of networking technology, having spent 13 years at Cisco in both Systems Engineering and Product Management roles, where he was part of the team that developed the Nexus product lines, before which he was at Unisys and Olivetti Solutions in the UK. Originally from the UK, Martin holds a B.Eng. in Electrical and Electronic Engineering from Coventry University (formerly known as Coventry Polytechnic).

Related posts

Arista's Evolution to Data-Driven Networking

Arista’s EOS (Extensible Operating System) has been nurtured over the past decade, taking the best principles of extensible,...

Jayshree Ullal
By Jayshree Ullal - November 2, 2021
Arista Partnering with Google Cloud to Deliver Hybrid Cloud and Multi-Cloud Connectivity

Arista has a long history of joint development with hyper-scale cloud providers delivering innovative solutions for a broad...

Douglas Gourlay
By Douglas Gourlay - October 27, 2021