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SD-WAN Solutions

SD-WAN continues to be a buzz word in the networking world. The amount of information and misinformation on this subject continues to grow. These pages bring together all the relevant information on SD-WAN technology solutions into an easy-to-read and quick browse format.

What is SD-WAN?

Software-Defined Wide Area Networking (SD-WAN) is a wholistic WAN paradigm that includes connectivity, orchestration and management. Connectivity can be using broadband Internet, 5G/LTE, MPLS or a private dedicated layer 2 network. By centralizing control in the cloud and combining functions at the edge, customers gain greater flexibility and performance combined with better economics. SD-WAN can also be delivered as-a-service, so networking can be consumed the same way as cloud services.

How SD-WAN Works

SD-WAN centralizes control in the cloud and combines functions at the edge, so customers gain greater flexibility and performance combined with better economics.

How SD-WAN Works

SD-WAN centralizes control in the cloud and combines functions at the edge, so customers gain greater flexibility and performance combined with better economics.

Why SD-WAN is Required

Software-Defined Wide Area Networking (SD-WAN) is a wholistic WAN paradigm that includes connectivity, orchestration and management. Connectivity can be using broadband Internet, 5G/LTE, MPLS or a private dedicated layer 2 network. By centralizing control in the cloud and combining functions at the edge, customers gain greater flexibility and performance combined with better economics. SD-WAN can also be delivered as-a-service, so networking can be consumed the same way as cloud services.



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Traditional WAN

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What Has Changed & Today’s Challenges

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The New CLOUD-FIRST WAN

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01

Traditional WAN

The traditional enterprise WAN had one purpose, connect branch offices to the headquarters where the data centers resided. Enterprise-wide applicatons and data was hosted in the data center. Users accessed these applications and data over MPLS links.

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02

What Has Changed & Today’s Challenges

Organisations are in the midst of their cloud and digital transformation initiatives. These initiatives have created the need for a more robust, cloud-first Wide-Area Network (WAN). The cloud (public, private, and hybrid) is a key enabler of digital transformation in modern enterprises. Businesses now expect a cloud-like experience — better performance, more agility, operational simplicity, and greater responsiveness — in practically all facets of their operations. The cloud isn’t a destination; it’s a journey and an experience. Adoption of Software-as-a-Service (SaaS) applications such as Microsoft 365, Salesforce, 8x8, and WebEx is putting ever-growing performance demands on legacy WAN architectures. At the same time, enterprises are migrating their on-premises applications and workloads to public cloud Infrastructure-as-a-Service (IaaS) and Platform-as-a-Service (PaaS) offerings and placing still greater demands on their WAN architectures. As organizations continue to migrate to the cloud, the biggest challenges with their WANs are cost, complexity, and performance. One observation is that cost is no longer a top-three concern, speaking to the fact that the return on investment (ROI) of WAN transformation efforts is now better understood.

three challenges with cloud migration
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03

The New CLOUD-FIRST WAN

This migration has also resulted in the strong adoption of what many call the “cloud consumption model,” an OpEx versus CapEx-driven paradigm, one of consume versus construct. This model delivers the flexibility, velocity, and performance required by the modern (that is, digitally transformed) enterprise. But in following this path, they can’t leave the WAN behind. Thus, the application of the cloud consumption model to the WAN, or what’s called the network consumption model. Just as the public cloud providers take responsibility for the physical infrastructure, creating a point-and-click environment for a host of services, the network consumption model does the same for the WAN. This is the essence of the cloud-first WAN.

Traditional WAN

The traditional enterprise WAN had one purpose, connect branch offices to the headquarters where the data centers resided. Enterprise-wide applicatons and data was hosted in the data center. Users accessed these applications and data over MPLS links.

What Has Changed & Today’s Challenges

Organisations are in the midst of their cloud and digital transformation initiatives. These initiatives have created the need for a more robust, cloud-first Wide-Area Network (WAN). The cloud (public, private, and hybrid) is a key enabler of digital transformation in modern enterprises. Businesses now expect a cloud-like experience — better performance, more agility, operational simplicity, and greater responsiveness — in practically all facets of their operations. The cloud isn’t a destination; it’s a journey and an experience. Adoption of Software-as-a-Service (SaaS) applications such as Microsoft 365, Salesforce, 8x8, and WebEx is putting ever-growing performance demands on legacy WAN architectures. At the same time, enterprises are migrating their on-premises applications and workloads to public cloud Infrastructure-as-a-Service (IaaS) and Platform-as-a-Service (PaaS) offerings and placing still greater demands on their WAN architectures. As organizations continue to migrate to the cloud, the biggest challenges with their WANs are cost, complexity, and performance. One observation is that cost is no longer a top-three concern, speaking to the fact that the return on investment (ROI) of WAN transformation efforts is now better understood.

three challenges with cloud migration

The New CLOUD-FIRST WAN

This migration has also resulted in the strong adoption of what many call the “cloud consumption model,” an OpEx versus CapEx-driven paradigm, one of consume versus construct. This model delivers the flexibility, velocity, and performance required by the modern (that is, digitally transformed) enterprise. But in following this path, they can’t leave the WAN behind. Thus, the application of the cloud consumption model to the WAN, or what’s called the network consumption model. Just as the public cloud providers take responsibility for the physical infrastructure, creating a point-and-click environment for a host of services, the network consumption model does the same for the WAN. This is the essence of the cloud-first WAN.

The Cloud-First SD-WAN Solution

The cloud-first WAN is a new approach to enterprise WAN designed to meet the needs of the Cloud-First enterprise. The new offerings cover areas of connectivity, application acceleration, cloud, security and analytics, all brought together seamlessly, and 'as-a-service'.

  • TIME TO MARKET
    Adapt to the dynamic needs of the business.
    The Power of NOW
  • OPERATIONAL SIMPLICITY
    Abstract complexity. Distribute simplicity.
    The Power of EASY
  • MULTI-CLOUD READY
    Any cloud, SaaS provider, partner.
    The Power of ANY

SD-WAN Architecture

Carrier SD-WAN

Carrier managed SD-WAN networks are built using equipment sourced from multiple vendors, with each vendor providing a proprietary configuration and monitoring solution, hence making a unified view of the network hard to achieve.

Overlay SD-WAN

The simplest route to SD-WAN is to deploy it as an edge overlay solution. In this configuration, the overlay solution provides some benefits over the legacy MPLS network because it leverages local Internet connectivity at branch locations.

Cloud-First WAN

A cloud-first WAN provides a better approach to SD-WAN that supports enterprise digital transformation with flexibility, speed, and simplicity in a WAN architecture delivered “as a service.”



SD-WAN Vendors

The SD-WAN vendor landscape is a crowded one with operators, hardware box providers and managed services solution providers all offering different flavors of SD-WAN. This section provides an overview of the various players and their capabilities.

SD-WAN Compared

SD-WAN vs SASE

Secure access service edge (SASE) is a network architecture that brings together principles of SD-WAN and security. This further simplifies the enterprise WAN.

SD-WAN vs MPLS

MPLS is the legacy enterprise WAN technology. SD-WAN is a new approach that combines various transport technologies including MPLS to provide a cost effective WAN solution .

SD-WAN vs a Cloud-First WAN

SD-WAN is a subset of a more complete cloud-first WAN architecture. A Cloud-first WAN goes well beyond SD-WAN to include integrating security, application and network optimization, multi-cloud connectivity, and others.

SD-WAN Migration

Migrating from the a traditional MPLS based WAN to an SD-WAN solution can either be a fork-lift operation with significant downtime or a seamless one depending on the solution chosen. A carefully consideration of areas like cloud connectivity, MPLS replacement or augmentation and the internet are needed to minimize downtime and other problems.


SD-WAN Benefits

SD-WAN BENEFITS

From CapEx and OpEx savings to operational simplicity, SD-WAN has a number of benefits over the traditional enterprise WAN. Cloud connectivity, application performance and security are some of the other areas that benefit from a well designed SD-WAN solution.

SD-WAN COST & ROI

A wholistic view of the network cost is essential to the calculation of ROI. These costs include the hardware cost of the boxes, deployment and maintenance expenses and MPLS subscription costs among others. The ROI of SD-WAN depends on the type of the architecture and business model among other things.


SD-WAN BENEFITS

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    SD-WAN BENEFITS
    From CapEx and OpEx savings to operational simplicity, SD-WAN has a number of benefits over the traditional enterprise WAN. Cloud connectivity, application performance and security are some of the other areas that benefit from a well designed SD-WAN solution.

  • 2/2

    SD-WAN COST & ROI
    A wholistic view of the network cost is essential to the calculation of ROI. These costs include the hardware cost of the boxes, deployment and maintenance expenses and MPLS subscription costs among others. The ROI of SD-WAN depends on the type of the architecture and business model among other things.

SD-WAN Use Cases

This section introduces real-world SD-WAN and cloud-first WAN use cases and shows you how SD-WAN helps customers address their networking and digital transformation challenges.

Additional Resources

2021 SD-WAN Managed Services Survey

In this in-depth 2021 analyst report, Futuriom surveys IT professionals and identifies seven key trends in the SD-WAN Managed Services market.

What IT Leaders Should Know About the SD-WAN Market

Read this white paper to understand industry analysts’ predictions about the growth of the SD-WAN market and why they matter to IT leaders preparing for digital transformation initiatives.

Aryaka Global SD-WAN:
Company Brief

Aryaka’s global SD-WAN solution provides fast, reliable, secure, and scalable connectivity, and application acceleration to globally distributed enterprises.

Additional Resources

  • 2021 SD-WAN Managed Services Survey

    In this in-depth 2021 analyst report, Futuriom surveys IT professionals and identifies seven key trends in the SD-WAN Managed Services market.

  • What IT Leaders Should Know About the SD-WAN Market

    Read this white paper to understand industry analysts’ predictions about the growth of the SD-WAN market and why they matter to IT leaders preparing for digital transformation initiatives.

  • Aryaka Global SD-WAN:
    Company Brief

    Aryaka’s global SD-WAN solution provides fast, reliable, secure, and scalable connectivity, and application acceleration to globally distributed enterprises.