Arista Networks Expands Routing Solutions to the Network Edge


Arista Networks announced the extension of its cloud-level routing solutions for next-generation network edge roles in the multi-cloud era. Arista Extensible Operating System (EOS) enhancements for cloud and service provider customers transform edge and backbone routing, migrating existing routers to software, highly available and scalable architectures for a return on investment faster and lower operating expenses.

New virtual private networking and traffic engineering capabilities enable three additional edge use cases for multi-cloud, metro and 5G RANs based on Arista’s cloud-level routing principles.

“Arista has an excellent track record in disruptive innovation. I’m excited to see how they will disrupt the service provider network ecosystem, ”said Rob Rockell, vice president, Network Engineering, Comcast.

Cloud-level routing is the future evolution

With a cloud-based approach to modern software principles, Arista extends beyond the data center to replace routers with routing. This routing journey began in 2016 with the introduction of the Arista R-Series platforms addressing use cases in Internet peering, Internet exchange networks and Telco NFV data centers. In 2018, Arista’s routing solutions expanded to cover content delivery networks, provider edge, and core routing.

These cloud-level routing principles lead to successful routing transformations based on leading merchant silicon platforms with high performance 10G / 25G / 100G / 200G / 400G connectivity, open standards with EVPN, and segmented routing. Arista’s flagship EOS software simplifies routing and reduces operating expenses through a single software stream. As a modern network operating system without a legacy protocol stack baggage, EOS provides a consistent network-wide automation framework for scalable, secure, and efficient operations.

Arista’s success in these existing routing use cases includes customers of service providers and cloud providers.

“Arista’s solution allowed us to take a new approach to routing for the next generation edge and backbone, reducing protocol complexity, providing L2 / L3 services with EVPN on a routing-based backbone. by segment, while modernizing operations to provide superior service and experience. for our customers ”, explains Mr. Salvatore Sciacco, CTO, CDLAN. “Arista not only had a technical solution that exceeded our needs, but also a vision and strategy that complemented CDLAN’s future direction. “

“Arista’s R Series with EOS has been instrumental in transforming the MPLS VPN edge, delivering 100G density, internet route scale, stability and manageability,” said Rick Cheung, Network Engineer principal, CEN (Connecticut Education Network). “Our relationship with the Responsive Advanced Services and Arista development teams feels like an extension of ours and has confirmed our decision to grow with Arista as the right one.

“We are delighted to partner with Arista Networks, sharing our focus on efficiency and experience to build our next generation cloud edge and routed backbone to meet the growth of our global network infrastructure. Arista EOS ‘rich routing stack enables us to deliver programmatic traffic engineering at the core with segmented routing without sacrificing quality, performance or reliability, ”said Joe Zhu, Founder and CEO of Zenlayer.

Next Generation Network Edge

With this announcement, Arista enters its third phase of routing solutions with the simplification of multi-cloud edge, metro edge and 5G edge designs for our cloud customers and service providers. These key attributes, leading to the next phase of cloud-level routing, for new edge profiles include:

  • Multi-cloud border: The demand for public cloud services creates the new cloud edge, created by the cloud footprint at the edge of the network to deliver services closer to the end customer. Cloud edges are built globally, with 100G / 400G connecting directly to the cloud, based on repeatable Layer 3 architecture, software-driven common provisioning, and programmatic traffic management , to provide uninterrupted service that scales globally.
  • Metro edge: Legacy router designs degrade the quality and end-user experience for service providers. To meet the new demand for bandwidth and faster connectivity for E-LINE and E-LAN ​​services, service providers are upgrading their metro Ethernet edge with efficient and efficient commercial 100G / 400G routing platforms. high density based on 100G / 400G silicon. Additionally, to achieve Opex efficiency, service providers simplify protocol complexity by adopting a single protocol for multiple edge VPN services and driving consistent automation for the metro fabric – the combination for faster service delivery. and scalable.
  • RAN 5G edge: The 5G architecture disaggregates the traditional mobile backhaul, bringing the footprint of the public cloud into the RAN (Radio Access Network) for localized service updates in real time. To meet the bandwidth demand of distributed nodes and radically scaled user / device and traffic profiles, the 5G edge requires a scalable, repeatable routing design with high-speed, high-performance connectivity, a single system of operation for protocols based on open standards and a consistent automation framework across the whole mobile Backhaul and Multi-access Edge Compute (MEC) deployments, enabling Opex efficiency and faster time to market for new services.


The functionality of the new routing use cases is now available in the latest version of EOS, a single software train for all Arista products. Arista’s R series offers performance, scalability and port density. The breadth and flexibility of the latest R3 series platform include:

Modular systems 7800R3 and 7500R3 scalability up to 460 Tbit / s capacity

  • New 7500R3 and 7800R3 line cards with native 25G SFP ports for flexible scalability of edge routing applications
  • Extended 7800R3 range with 16 slots for up to 576 400G ports or 768 100G ports

7280R3 Series of 1U and 2U Systems adapts up to 9.6 Tbps with 24 ports of 400G in 1U and with new options that extend solutions for the network edge

  • 7280CR3MK-32P4S and 7280CR3MK-32D4S with 32 100G ports and four 400G ports offering both routing scale and built-in 100G MACsec encryption
  • 7280CR3-36S and 7280CR3K-36S, offering 36 100G ports and flexible port modes for all network edge roles from 10G to 400G
  • 7280SR3M-48YC8, offering 48 25G ports plus 8 100G ports with MACsec encryption
  • 7280SR3-40YC6, offering 40 25G ports plus 6 100G ports for aggregation and access deployments
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