Akamai and Cloud Computing

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Akamai and Cloud Computing
A Perspective from the Edge of the Cloud
by Tom Leighton, co-Founder and Chief Scientist, Akamai Technologies

Table of Contents

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 UNDeRsTaNDINg The ClOUD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 The Cloud Computing Framework Virtualization Infrastructure-as-a-Service Platform-as-a-Service Software-as-a-Service Cloud Optimization Services Public Clouds and Private Clouds 1 2 2 2 2 2 3

aNaTOmy OF a ClOUD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 The middle mile Conundrum Peering Point Problems Routing Vulnerabilities Inefficient Communications Protocols Network Outages Cloud Computing architectures Centralized Datacenters — New Opportunity, Old Approach Highly Distributed Networks — Getting Close to End Users 3 4 4 4 5 5 5 5

akamaI’s eDgePlaTFORm: OPTImIzINg The ClOUD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 accelerating Cloud Computing applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Route Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Communications Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Application Optimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Distributing application Components to the edge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 securing Cloud applications and Platforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 ensuring site and application availability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 CONClUsION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 abOUT akamaI . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

akamai and Cloud Computing: a Perspective from the edge of the Cloud

1

Introduction
As one of the hottest concepts in IT today, “cloud computing” proposes to transform the way IT is consumed and managed, with promises of improved cost efficiencies, accelerated innovation, faster time-to-market, and the ability to scale applications on demand. While the market is abundant with hype and confusion, the underlying potential is real — and is beginning to be realized. In particular, SaaS applications and public cloud platforms have already gained traction with small and startup businesses. These offerings enable companies to gain fast, easy, low-cost access to systems that would otherwise cost them millions of dollars to build. At the same time, cloud computing has drawn the cautious but serious interest of larger enterprises in search of its benefits of efficiency and flexibility. However, as companies begin to implement cloud solutions, the reality of the cloud itself comes to bear. Most cloud computing services are accessed over the Internet, and thus fundamentally rely on an inherently unpredictable and insecure medium. In order for...
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