The Evolution from Products to Platforms in Software Driven Cloud Networking

Legacy networking vendors have often declared that they do not build “boxes” but actually build “systems and architectures”. I have tried to understand what that really means. Undoubtedly, new applications on the Internet have evolved and now depend on a modern infrastructure that outlives any particular static workload or physical machine. Indeed, at Arista, we…
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Balanced Buffer Design for Mission-Critical Cloud Networks

Leading customers and researchers in cloud and data center networking have been promoting the importance of understanding the impact of TCP/IP flow and congestion control, speed mismatch and adequate buffering for many decades. The problem space has not changed during this time, but the increase in the rates of speed by 100X and in storage…
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The Impact of White Box on Cloud Networking

The adoption of cloud networking architectures by both the hyper-scale cloud companies and increasingly enterprise networks proves the need for open standards and modern networking software to gain the benefits of agility, programmability and resiliency. These architectures are all driven by the move to standardized topologies and container-scale deployment to achieve cloud economics. The recent…
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ANET Cloud Infrastructure – Arista Definition of ACI

You may have noticed Arista being uncharacteristically quiet throughout an imposed “quiet period” leading up to our IPO (ANET). While the industry continued to speak out on behalf of, or against, Arista, the company remained true to its focus on solving customer problems through disruptive cloud networking architectures and technology. Enabling innovative applications to take…
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The Ideal Cloud Network: SDN Overlays, Underlays or Both?

Enterprises are still a complex mix of legacy and newer cloud applications, yet smart use of universal SDN-based cloud networks is the great equalizer in bringing enterprises and the new applications of the cloud together. Evolutionary migration strategies from a mainframe to a client-server architecture can also be applied to the next phase of cloud…
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Separating Hype from Reality in SDN

Lately, two acronyms have been making the rounds: SDN (Software Defined Networking) and ACI (Application Centric Infrastructure – promoted by Cisco). Both have things in common which equate to great marketing: a delightful vision and being difficult to pin down in terms of a crisp definition. Let me try to clarify as best I can…
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Software-Defined Cloud Networking Reflections

Every year I like to reflect upon my beginning of year predictions versus the actual outcomes. Once again that time has come, so lets take a walk down memory lane and see how I fared. Prediction #1: The rise in server virtualization will drive network virtualization deployments. Evaluation #1: Half true. We began to see…
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A New Cloud Network “Spline™” Is Born

The dramatic shift to East-West traffic patterns within the data center is creating excitement, new customer requirements and many new three-letter acronyms such as SDN, HDN (read ASICS) or ACI. Add the term “Fabric”, touted by many, and the confusion deepens with proprietary technology. Be it Q-Fabric, Fabric Controllers, ACI or Fabric Path, these are…
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Redefining Cloud-Networking Resilience & Visibility

In modern two-tier leaf-spine cloud networks, the increasing dominance of east-west traffic patterns, accompanied by the sheer volume of traffic and the increase in data rates from 10G to 40G/100G are combining to make it challenging to predict and analyze performance issues proactively. The scale involved in connecting 100K+ physical servers, 1M+ Virtual Machines and…
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Enabling Network Applications with VMware, Microsoft and the Ecosystem

With the advent of the modern application era in data centers for applications such as business analytics and web services and the accompanying deployment of cloud computing environments, we see the arrival of a universal cloud network. The infrastructure requirements for modern data center applications are in fact quite different from those originally associated with…
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