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SD-WANの概要:課題と展望

An SD-WAN Overview: Issues and Prospects

出版日: | 発行: Heavy Reading | ページ情報: 英文 102 Pages | 納期: 即日から翌営業日

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SD-WANの概要:課題と展望
出版日: 2019年02月28日
発行: Heavy Reading
ページ情報: 英文 102 Pages
納期: 即日から翌営業日
  • 全表示
  • 概要
  • 目次
概要

当レポートでは、SD-WANについて取り上げ、SD-WANの登場に関連した課題、主な促進要因とメリット、市場構造と市場参入企業 (特にソフトウェア・ハードウェアベンダーとサービスプロバイダー)、ブランチの高まる重要性と需要およびセキュリティ需要の拡大を含めた市場展望と評価、米国を拠点とする市場参入企業のプロファイルなどをまとめています。

第1章 エグゼクティブサマリー

第2章 イントロダクション

第3章 なぜSD-WANなのか:メリットの定義

  • コスト削減、より広い帯域幅
  • 柔軟性、制御および速度
  • ハイブリッドネットワーキング:モダリティを切り替える能力
  • アプリケーションアウェアルーティング
  • 導入の促進要因:点火

第4章 SD-WAN:市場の定義

  • DIY vs. サービス管理
  • 市場の売り手
  • 市場の買い手
  • 市場の活気:大きな関心、しかし導入は控えめ

第5章 主なSD-WANの課題

  • ブランチ:その変化、成長する役割
  • セキュリティ
  • 統合:ハイブリッドWANにおける成長の始まり
  • 展開の複雑さ
  • パッとしない日が来る
  • MPLSの変化する役割

第6章 SD-WANオペレーターのプロファイル

  • AT&T
  • CenturyLink
  • Comcast Business
  • Verizon Communications

第7章 用語

目次

Software-defined wide-area network (SD-WAN) is an overlay running on top of existing networks of multiple kinds (Multiprotocol Label Switching [MPLS], digital subscriber line [DSL], cable, wireless, etc.) and providers. This overlay facilitates much more extensive use of lower cost broadband internet service, among other things. It also promises many other general benefits, including increased management agility, application awareness, and hybrid networking. SD-WAN adoption is stimulated by the combination of intensifying bandwidth demands generated by cloud applications, Internet of Things (IoT), video, mobility, and more, all to a proliferating number of branch offices as MPLS costs continue rising.

While numerous organizations want to keep using MPLS for critical applications, many common very high bandwidth applications such as, for example, video over YouTube (or otherwise), do not require hub-and-spoke-based MPLS through a central location. Traffic can be redirected locally and much less expensively to branch offices with SD-WAN or another internet-based high bandwidth solution. However, for the customer to do the latter without SD-WAN places the onus on already typically overworked IT staff. This issue helps point toward SD-WAN, whether managed or self-managed (do it yourself [DIY]), as easier to adopt. In the longer run, SD-WAN will largely take the place of much of wide-area networking.

Meanwhile, SD-WAN contributes significantly to the key imperatives of cloud connectivity and heightened branch office automation as customers try access the multi-cloud and software as a service (SaaS) applications more efficiently. SD-WAN will increasingly be at the nexus of branch connectivity between end users and cloud-based applications.

There will be great demand beyond basic SD-WAN for a growing multiplicity of functions in the branch office - and whatever may be newly defined as the branch office - including enhanced security and other virtual network functions (VNFs). Many more, and more loosely defined, branch offices will be developed. A large share of them will use SD-WAN connectivity as organizations become increasingly able to spin up branches wherever convenient for the cloud and growing bandwidth demands.

An SD-WAN Overview: Issues and Prospects provides an overview and reviews significant issues in relation to the emergence of SD-WAN. It looks at the meaning of SD-WAN, its major drivers and benefits, and the structure of the market and its participants - especially between software and hardware vendors and service providers (SPs). The report also projects the market outlook and assesses issues, including the growing importance and demands of the branch and increased demands for security. It then profiles several significant U.S.-based SD-WAN market participants.

Table of Contents

1. Executive Summary

  • 1.1 Key Findings
  • 1.2 Companies Covered

2. Introduction

  • 2.1 What is SD-WAN and What Does it Mean
    • Defining SD-WAN: The Tests
  • 2.2 The Enterprise Challenge

3. Why SD-WAN: Defining the Benefits

  • 3.1 Cost Reduction, More Bandwidth
    • Enhanced Bandwidth, Cheaper Hardware
    • Simplified, Centralized Management
  • 3.2 Flexibility, Control and Speed
  • 3.3 Hybrid Networking: Ability to Switch Modalities
  • 3.4 Application-Aware Routing
  • 3.5 Catalysts for Adoption: Lighting the Fire

4. SD-WAN: Defining the Market

  • 4.1 DIY vs. Service Management
    • Unfamiliarity = Caution
    • The Middle Path: Co-Management as Compromise
    • Vendors vs. Carriers: The Outlook
  • 4.2 The Market's Sellers
    • The Vendor Dilemma
    • The Vendors
    • The Carriers
  • 4.3 The Market's Buyers
    • The Most Active Adopters
  • 4.4 The Pulse of the Market: Great Interest, Still Modest Adoption

5. Major SD-WAN Issues

  • 5.1 The Branch: Its Changing, Growing Role
    • Expanding Branch Capabilities
  • 5.2 Security
  • 5.3 Integration: Opening for Growth in Hybrid WAN
  • 5.4 Deployment Complexity
    • Market Complexity
  • 5.5 Cloudy Days Coming
  • 5.6 The Changing Role of MPLS

6. SD-WAN Operator Profiles

  • 6.1 AT&T
  • 6.2 CenturyLink
  • 6.3 Comcast Business
  • 6.4 Verizon Communications

7. TERMS OF USE

SD-WAN OPERATORS PROFILED (4)

  • AT&T (NYSE: T)
  • CenturyLink (NYSE: CTL)
  • Comcast Business (NASDAQ: CMCSA)
  • Verizon Communications (NYSE: VZ)
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