7280R3A Series | Platform Overview

Software Defined Cloud Networks

Arista Software Defined Cloud Networking (SDCN), combines the principles that have made cloud computing the unstoppable force

that it is: automation, self service provisioning, and linear scaling of both performance and economics coupled with the trend in

Software Defined Networking that delivers: network virtualization, custom programmability, simplified architectures, and lower capital

expenditure. This combination creates a best-in-class software foundation for maximizing the value of the network to both the

enterprise and service provider data center. A new architecture for the most mission-critical location within the IT infrastructure that

simplifies management and provisioning, speeds up service delivery, lowers costs and creates opportunities for competitive

differentiation, while putting control and visibility back in the hands of the network and systems administrators.

The Four Pillars of Arista's Software Defined Cloud Networking:

Universal Cloud Network

• Scalable standards-based MLAG at Layer 2, ECMP for Layer 3 and EVPN for network virtualization flexibility

• Non blocking leaf-spine architecture for 10K-500K hosts

Cloud Control

• Standards based EOS with AEM, ZTP/ZTR, LANZ and DANZ

• Automated Monitoring for visibility and telemetry

Network Wide Virtualization

• Multi-vendor API Support with eAPI

• Support for VMWare and NSX with VXLAN and VMTracer

• Support for Openstack OVSDB

Network Applications and Automated Management

• Single point of network-wide state with Arista CloudVision

• Networked applications for workload mobility, smart systems rollback and upgrades and workflow telemetry

• Open Partner integration

Scaling High Performance Data Centers

The Arista 7280R3A Series deliver non-blocking switching capacity that enables dramatically faster and simpler network designs for data

centers and lowers both capital and operational expenses. Arista’s wide range of systems, with a single consistent EOS, allows for

flexible, right-sized product choice for all tiers of the network with a strong focus on open standards and interoperability.

The 7280R3A family provides comprehensive support for all common data center architectures, including layer 2 MLAG, layer 3 ECMP

and EVPN-VXLAN overlay networking. Leaf-spine topologies provide the most efficient foundation for modern high performance

applications, scalable to hundreds of thousands of hosts, while providing predictable, non-blocking, low latency performance. Arista’s

Multi-Chassis Link Aggregation (MLAG) technology supports active/active L2 network topologies, while layer 3 Equal Cost Multi-Path

(ECMP) designs enable construction of very high radix topologies for large scale deployment. Both designs support EVPN-VXLAN

overlay networks for additional segmentation and can integrate with standards-based overlay controller solutions.

The flexibility of the L2 and L3 multi-path design options combined with support for open standards provides maximum flexibility,

scalability and network wide virtualization that scales to hundreds of thousands of hosts in a single two-tier design. The Arista 7280R3A

Series FlexRoute engine provides Internet scale routing to support deployment as an Internet border/peering router, enterprise CDN

backbone or data center interconnect (DCI). Arista FlexRoute along with EOS NetDB enables innovation not natively available in

merchant chipsets. Arista EOS provides operational savings through visibility, automation and improved network operations.

Cloud Grade Routing

The 7280R3A series are key components of Arista’s portfolio of Cloud Grade Routing platforms that encompasses a wide choice of fixed

and modular systems. Combining Arista EOS’s proven and feature rich Service Provider functionality, telemetry and open

programmability with industry leading scale, density and power efficiency, the R3 series systems are designed for versatile deployment

in a wide variety of open networking environments. 

 

Next generation multi-service environments require flexibility, security and open programmability to leverage the power efficiency and

proven scale of cloud networks. The R3 Series routing solutions include large scale layer 2, layer 3 and EVPN based telco and cloud data

center designs, low latency MEC overlay fabrics, data center interconnect (DCI) with long haul optics, provider edge networks with

scaleable L2 and L3 VPN services, high density 100G/400G traffic engineered MPLS and SR-TE cores, 5G infrastructure and metro-

aggregation for the backhaul of E-LINE services.