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市場調查報告書

軟體定義網路(SDN)時代的通訊業者資訊中心網路的未來

The Future of Telco Data Center Networking in the SDN Era

出版商 Heavy Reading 商品編碼 303961
出版日期 內容資訊 英文 30 Pages
商品交期: 最快1-2個工作天內
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軟體定義網路(SDN)時代的通訊業者資訊中心網路的未來 The Future of Telco Data Center Networking in the SDN Era
出版日期: 2014年05月23日 內容資訊: 英文 30 Pages
簡介

對通訊業者來說,資訊中心正成為策略性高的資產,許多經營者實施或計劃資訊中心的大規模轉換。資訊中心到目前現在為止主要是為了支援公司內部的業務而使用,不過現在也肩負提供含各種內容和影音等的終端用戶取向的應用作用。還有基礎架構即服務(IaaS)和SaaS之雲端基礎服務、網路功能虛擬化(NFV)技術的普及,也成為促進資訊中心重組的要素。軟體定義網路(SDN),是為了能以有效率且成本效益高的方法支援這些新服務的架構,開放提供標準基礎平台的新供應商,威脅到現在為止提供專業解決方案的現有供應商。通訊業者導入SDN的最大動機是節減運營成本。如果導入Linux為基礎的工具,在電腦、網路、儲存網域便可能使用單一管理系統,也能提高使用虛擬化技術的資源利用效率。

本報告提供SDN對通訊業者的資訊中心的影響,與新加入供應商與現有供應商所提供的各種引進方案和方法、網路基礎建設所需的新條件的相關分析,加上各供應商對資本支出與運營成本的支援,也網羅資訊中心網路的利用案例、主要的資料中心交換器供應商簡介等。

第1章 簡介和主要調查結果

  • 主要調查結果
  • 調查範圍與結構

第2章 促進資訊中心網路變化的要素

  • 支援通訊業者資訊中心的應用的多樣化
  • 伺服器/網路/網路功能的虛擬化、「雲端化」
  • 增加聰敏度的競爭企業

第3章 各供應商對資本支出與運營成本的支援

第4章 資訊中心網路的利用案例

  • 枝葉/主幹拓撲
  • 網路架構
  • 虛擬覆蓋網路
  • SDN

第5章 各供應商比較

第6章 資料中心交換器供應商

  • 新加入廠商供應商
    • Big Switch Networks
    • Cumulus Networks
    • Pica8
    • Plexxi
    • Pluribus Networks
    • Vello Systems
  • 現有供應商
    • Arista Networks
    • Brocade
    • Cisco
    • Dell
    • Extreme
    • Juniper

附錄A:關於筆者

附錄B:免責聲明

圖表清單

目錄

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
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