株式会社グローバルインフォメーション
TEL: 044-952-0102
市場調査レポート

ソフトウェアデファインドネットワーク(SDN)時代の通信事業者データセンターネットワークの将来像

The Future of Telco Data Center Networking in the SDN Era

発行 Heavy Reading 商品コード 303961
出版日 ページ情報 英文 30 Pages
納期: 即日から翌営業日
価格
本日の銀行送金レート: 1USD=114.77円で換算しております。
Back to Top
ソフトウェアデファインドネットワーク(SDN)時代の通信事業者データセンターネットワークの将来像 The Future of Telco Data Center Networking in the SDN Era
出版日: 2014年05月23日 ページ情報: 英文 30 Pages
概要

通信事業者にとって、データセンターは戦略性の高い資産となりつつあり、多くの事業者がデータセンターの大規模な転換を実施あるいは計画しています。データセンターは、これまで主に社内の業務を支援するために使われていましたが、現在では各種コンテンツや動画などを含むエンドユーザー向けのアプリケーションを提供する役割も担うようになっています。また、サービスとしてのインフラストラクチャ(IaaS)やSaaSといったクラウドベースのサービス、ネットワーク機能仮想化(NFV)技術の普及も、データセンターの再編を促す要因になっています。ソフトウェアデファインドネットワーク(SDN)は、これらの新たなサービスを効率的かつ費用対効果の高い方法でサポートできるようにするためのアーキテクチャであり、オープンで標準ベースのプラットフォームを提供する新たなプロバイダーが、これまでプロプライエタリーソリューションを提供してきた既存のベンダーを脅かしつつあります。通信事業者がSDNを導入する最大の動機は運営費の節減です。Linuxベースのツールを導入すれば、コンピューター、ネットワーク、ストレージドメインで単一の管理システムを使うことが可能になり、仮想化技術を使ってリソースの利用効率を高めることもできます。

当レポートは、通信事業者のデータセンターに対するSDNの影響を明らかにしたもので、新規参入ベンダーと既存ベンダーが提供する各種の導入シナリオやアプローチ、ネットワークインフラストラクチャに求められる新たな条件についての分析のほか、資本的支出と運営費に対するベンダー各社の対応、データセンターネットワークの利用事例、主なデータセンタースイッチベンダーのプロファイルなども網羅しています。

第1章 イントロダクションと主な調査結果

  • 主な調査結果
  • 調査範囲と構成

第2章 データセンターネットワークの変化を促す要因

  • 通信事業者のデータセンターでサポートするアプリケーションの多様化
  • サーバー/ネットワーク/ネットワーク機能の仮想化、「クラウド化」
  • 俊敏さを増す競合企業

第3章 資本的支出と運営費に対するベンダー各社の対応

第4章 データセンターネットワークの利用事例

  • リーフ/スパイントポロジー
  • ファブリックアーキテクチャ
  • 仮想オーバレイネットワーク
  • SDN

第5章 ベンダー各社の比較

第6章 データセンタースイッチベンダー

  • 新規参入ベンダー
    • Big Switch Networks
    • Cumulus Networks
    • Pica8
    • Plexxi
    • Pluribus Networks
    • Vello Systems
  • 既存ベンダー
    • Arista Networks
    • Brocade
    • Cisco
    • Dell
    • Extreme
    • Juniper

付録A:執筆者について

付録B:免責事項

図表リスト

目次

Data centers are becoming a more strategic asset for telecom operators, with many currently in the midst of, or planning, major transformations. Whereas they were once used primarily to support internal functions, today data centers are used to deliver end-user applications, including content and video. More importantly, cloud-based services such as infrastructure as a service (IaaS) and software as a service (SaaS) are facing an increasingly competitive market. Network functions virtualization (NFV) is another major driver of change in the telco data center.

To support these new services more efficiently and cost-effectively, telcos are looking to software-defined networking (SDN) architectures. SDN represents a new paradigm in networking - one that is creating an opportunity for new suppliers. Open, standards-based platforms threaten to disrupt the business of established suppliers, which have historically offered proprietary solutions. These suppliers are looking to defend their turf while also demonstrating a commitment to "openness."

Opex savings is the main driver behind the move toward SDN, as opposed to the capex savings that generic x86 platforms will provide. SDN architectures offer the promise of more automation, simplifying service creation and delivery. The ability to use Linux-based tools would enable telcos to use a single management system across the compute, network and storage domains. This is how the hyper-scale cloud providers such as Google and Amazon operate today, and telcos need to be able to match them from a cost perspective to remain competitive. Virtualization - which is not a requirement of SDN, but is often planned in conjunction with SDN transformation - will give telcos the ability to use resources more efficiently.

SDN is but one of the use cases that is supported by existing and emerging data center networking solutions. Leaf/spine architectures are being deployed to account for the shifting of traffic from north-south to east-west. Fabric architectures provide a more efficient way to configure and manage disparate network elements and transport data. Overlay networks provide the ability to support thousands of virtual networks - a necessity for cloud services - while also making it easier to move workloads between and across data centers.

SDN itself has many possible implementation scenarios, and different vendors and products support different models. Heavy Reading expects that telcos will adopt multiple approaches. Which one they choose will depend on the nature of the services they wish to offer and how aggressively they wish to transform their data centers. There is certainly room and opportunity for new entrants, but we expect the incumbents to retain a good share of the business, as they have shown a willingness to adapt to meet the emerging telco requirements for next-generation data centers.

The Future of Telco Data Center Networking in the SDN Era highlights and analyzes the impact SDN will have on the telco data center networking domain, including the various implementation scenarios and approaches of new-entrant challengers and established vendors. It also provides insight into the current thinking of telco data center operators as regards their emerging requirements and expectations for networking infrastructure. It discusses the likely evolution of data center networking as telcos transform their data centers to support SDN and NFV.

The changing requirements for telco data centers have created an opening for new solutions - and new suppliers. This report analyzes the strategies of 12 leading data center networking vendors, including both incumbents and challengers. The challengers are taking varied approaches to data center networking, with some having a targeted focus on networking, while others are concentrating more on applications. The excerpt below offers a brief overview, illustrating each vendor's technology focus and core competencies.

image1

When comparing challenger and incumbent switch vendors, much of the difference has to do with where the value lies - in hardware or software - and where the intelligence for SDN will reside - in the controller or the switch. As the excerpt below shows, challengers are more likely to embrace open-source principles, using Linux for the OS and OpenFlow to communicate with SDN controllers; and are more likely to leverage merchant silicon, rather than develop custom ASICs. In their view, hardware is a commodity, and the value of the solution is in software.

image2

Report Scope & Structure

The Future of Telco Data Center Networking in the SDN Era is structured as follows:

Section I is an introduction to the report, with complete report key findings.

Section II examines the drivers behind the changing telco data center networking environment.

Section III highlights the ways in which vendors are responding to emerging telco requirements for data center networking, in terms of both opex and capex considerations.

Section IV defines and discusses four use cases for data center networking.

Section V outlines the various characteristics used to compare data center switch suppliers, and discusses how incumbents and challengers approach networking challenges and requirements.

Section VI provides short profiles on both challenger and incumbent data center switch vendors.

The Future of Telco Data Center Networking in the SDN Era is published in PDF format.

Table of Contents

LIST OF FIGURES

I. INTRODUCTION & KEY FINDINGS

  • 1.1 Key Findings
  • 1.2 Report Scope & Structure

II. DRIVERS FOR CHANGE IN DATA CENTER NETWORKING

  • 2.1 Telcos Supporting More & Different Types of Applications in Data Centers
  • 2.2 Server/Network/Network Function Virtualization, "Cloudification"
  • 2.3 More Nimble Competition

III. VENDORS' RESPONSES ADDRESSING CAPEX & OPEX

IV. USE CASES FOR DATA CENTER NETWORKING

  • 4.1 Use Case 1 - Leaf/Spine Topology
  • 4.2 Use Case 2 - Fabric Architectures
  • 4.3 Use Case 3 - Virtual Overlay Networks
  • 4.4 Use Case 4 - SDN

V. VENDOR COMPARISONS

VI. DATA CENTER SWITCH VENDORS

  • 6.1 New Entrants
  • Big Switch Networks
  • Cumulus Networks
  • Pica8
  • Plexxi
  • Pluribus Networks
  • Vello Systems
  • 6.2 Established Vendors
  • Arista Networks
  • Brocade
  • Cisco
  • Dell
  • Extreme
  • Juniper

APPENDIX A: ABOUT THE AUTHOR

APPENDIX B: LEGAL DISCLAIMER

LIST OF FIGURES*

SECTION I

SECTION II

  • Figure 2.1: Data Center Infrastructure

SECTION III

SECTION IV

  • Figure 4.1: Three-Tier Network Design vs. Leaf & Spine Architecture
  • Figure 4.2: Brocade VCS Logical Chassis
  • Figure 4.3: Virtual Overlay Network
  • Figure 4.4: Software-Defined Network Architecture

SECTION V

  • Figure 5.1: Challengers vs. Incumbents - Technologies Supported
  • Figure 5.2: Challengers vs. Incumbents - Software & Hardware Details

SECTION VI

  • Figure 6.1: Technology Focus of New-Entrant Data Center Switch Vendors
  • Figure 6.2: Big Switch's Big Tap Monitoring Fabric
  • Figure 6.3: Cumulus Networks' Linux OS for Networking Hardware
  • Figure 6.4: Pica8's PicOS Network OS Overview
  • Figure 6.5: Plexxi's "Affinity" Approach
  • Figure 6.6: Pluribus's Netvisor Open-Source Technology
  • Figure 6.7: Vello Systems' VellOS Network OS
Back to Top