White Papers

Arista Networks, a leader in high-speed, highly programmable datacenter switching, has outlined a number of guiding principles for network designs serving private cloud, public cloud, enterprise and high-performance network use cases. Arista’s Software Driven Cloud Networking approach incorporates software capabilities of our Extensible Operating System (EOS®) and CloudVision® software to provide seamless and consistent operational experiences and work ow integration across any cloud infrastructure.

. Software Driven Cloud Networking

Traffic volumes are exploding in the datacenter due to the increasing efficiency and density of highly-virtualized cloud computing infrastructures. A single application or storage server, now connecting at speeds of 10Gbps, 25Gbps and even 50Gbps, can now generate bi-directional flow rates in excess of tens of billions of packets per day with aggregate daily traffic in many cloud data centers measurable in petabytes and beyond. To handle these loads, deployments of multi-path 100Gbps Ethernet spine and leaf architectures are becoming the norm. Owing to the large volumes of traffic, traditional methods of capturing and analyzing traffic flows require a dramatic rethink in density and performance for data aggregation and visibility.

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Suffice to say, consumer video consumption behavior has undergone a rapid transformation. The ubiquitous stationary TV has been replaced with far greater viewing options and an unprecedented flexibility to consume any content at any place on any screen. This revolution, first ushered in by the Digital Video Recorder (DVR) in the late 90s has culminated into a new world order of “binge” watching and freedom from the constraint of linear programming schedules or the anchor of the stationary living-room TV set.

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Suffice to say, consumer video consumption behavior has undergone a rapid transformation. The ubiquitous stationary TV has been replaced with far greater viewing options and an unprecedented flexibility to consume any content at any place on any screen. This revolution, first ushered in by the Digital Video Recorder (DVR) in the late 90s has culminated into a new world order of “binge” watching and freedom from the constraint of linear programming schedules or the anchor of the stationary living-room TV set.

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The data revolution is transforming the consumer and business landscape with intelligent transportation, smart cities, home automation and IoT devices. The common theme: data is everywhere and is growing exponentially. Over the years, network service providers have invested in multiple technology transitions in mobile, broadband access and business services. This has led to disparate SP networks, each with its own proprietary architecture, leading to enormous OPEX and CAPEX budget bloats. More importantly, these silos have crippled their ability to introduce new services or scale out existing services in an agile manner. With increased bandwidth demand and reduced revenue per bit forecasted, service providers are under pressure to reduce their TCO and transform their infrastructure to drive innovation, all while being more agile in service delivery.

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The phenomenal growth in mobile, video streaming and Cloud services is driving the need for higher bandwidth within datacenters. Global IP traffic is estimated to grow at a compound annual growth rate (CAGR) of 23 percent from 2014 to 2019. These same applications are also driving the need to interconnect geographically dispersed datacenters to maintain seamless content delivery and to provide application agility without compromising on customer data security from external threats. The implications of poor data protection can be detrimental for an organization, ranging from government fines to costly lawsuits. To keep up with the global demand for higher bandwidth, datacenter operators need an interconnect solution that is dense, economically efficient and secure. This white paper will provide an overview of the underlying technology of Coherent DWDM and the advantages of the Arista 7500E Series DWDM solution.

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The introduction of the Arista 7500E Series DWDM solution expands the capabilities of the Arista 7000 Series with a new, high-density, high-performance, DWDM line card.

Until now, providing secure high-speed Metro and Long Haul, high-bandwidth Ethernet connectivity between customer locations required separate layer 2 and 3 IP networking devices, passing each connection through dedicated encryption devices and provisioning optical channels over active DWDM solutions.

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IT directors understand that private cloud datacenters give organizations full control over their workloads. However, adding new workloads, or scaling capacity for existing workflows, can trigger a costly CAPEX event and take considerable time. Conversely, virtual public cloud implementations can be more granular, while offering the promise of near limitless expandability, on demand, on a pay-for-use basis. For these and other reasons like easy adaptability, quick time to deployment, and ready access to the global customer base, cloud-based applications have become a competitive necessity for organizations.

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The advent of Cloud Computing changes the approach to data center networks in terms of throughput, resilience, and management. Cloud computing is a compelling way for many businesses, small (private) and large (public) to take advantage of web based applications. One can deploy applications more rapidly across shared server and storage resource pools than is possible with conventional enterprise solutions.

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Hadoop and other distributed systems are increasingly the solution of choice for next generation data volumes. A high capacity, any-to-any, easily manageable networking layer is critical for peak Hadoop performance. Data analytics has become a key element of the business decision process over the last decade, and the ability to process unprecedented volumes of data a consequent deliverable and differentiator in the information economy

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