1. © 2009 Level 3 Communications, LLC. All Rights Reserved. Level 3 Communications, Level 3, the red 3D brackets and the Level 3 Communications logo are service marks of Level 3 Communications, LLC in the United States and/or other countries. Level 3 services are provided by wholly owned subsidiaries of Level 3 Communications, Inc. Any other service, product or company names recited herein may be trademarks or service marks of their respective owners. Content Delivery CDN For The NREN Community Bart Van Aanholt Sales Director European Markets Level 3 Communications

2.  2009 Level 3 Communications, LLC. All Rights Reserved. 22 What is CDN and why do People use it? Application in Research Community – The ESA Case Study Q&A

3.  2009 Level 3 Communications, LLC. All Rights Reserved. 33 Why were CDN’s invented? Large Colocation Facility Large Fiber connectivity Consumers x 000’s Smaller Colo Consumers x 000’s Smaller connectivity UK CH FR DE UK CH FR DE CDN

4.  2009 Level 3 Communications, LLC. All Rights Reserved. 44 Scale  You can deliver more audience without the commitment to larger capacity and more architecture Efficiency  Faster delivery of content, as the servers are closer to the customer Resilence  100% redundancy – more servers to support any chance of failure Costs  You pay for what you use, so no 95 th percentile commitment  You do not need as much hardware to run your site CDN Provides: CDN IS A COST EFFECTIVE, FASTER AND MORE EFFICIENT WAY TO RUN YOUR WEBSITE

5.  2009 Level 3 Communications, LLC. All Rights Reserved. 55 What’s driven CDN creation 1969 four host Computers connected To form ARPANET 1983 JANET Goes live in the U.K. 1989 first Commercial ISP’s UUNET, PSINET 2008 Cisco announces approaching the Zettabyte era December 2008 the Internet hits 1 billion users December 1995 the Internet has 16 million users 2000 the Dot.com Bubble bursts Source: Based on third party information

6.  2009 Level 3 Communications, LLC. All Rights Reserved. 66 CDN milestones 1998 Akamai launches January 2009 Obama inauguration CNN runs 1m concurrent streams 1993 Visual data first company to feature streaming Video (HotelView ) 1996 Sandpiper Networks founded, the first CDN, release of flash 1980 UDP Defined* * User Datagram Protocol April 2008 BBC iPlayer has 21 million requests 2001 Limelight Networks launches 1994 MPEG-2 Standard established 2005 YouTube Gets $5million funding 2007 ABC first to stream full length programme in HD Source: Based on third party information

7.  2009 Level 3 Communications, LLC. All Rights Reserved. 77 EU CDN Market Value by Segments Media/Entertainment and Broadcast: 40% of market Others segments of interest include: Software and gaming: 20% All other segments are targeted through indirect channels estimated: 40% Source: Illume Consulting, market reports and company analysis Europe CDN Segmentation - 2008

8.  2009 Level 3 Communications, LLC. All Rights Reserved. 88 EU CDN Market Forecast: 2009-2013 We believe the European CDN market will grow from $171M in 2008 to $238M in 2009 and $338M in 2010  Key drivers of growth: consumers driving broadband traffic with increasing use of video content  UK and Germany in the next two years will be the drivers of growth for CDN in Europe (because of the applications and broadband maturity) Source: Illume Consulting, market reports and company analysis European CDN Market Forecast $171M $238M $338M $465M $619M $793M CAGR: 36%

9.  2009 Level 3 Communications, LLC. All Rights Reserved. 99 Caching Caching and Streaming Caching, Streaming, and Storage Strong global presence spanning North America, Europe and APAC Over 4,000 servers and 1.2Tbps of egress network capacity Strategically placed 10G clusters provide optimal coverage based on deep network intelligence of traffic flows Capability to scale quickly to stay ahead of demand – able to add 100s of Gbps of capacity in weeks Level 3 CDN: enabling the Internet

10.  2009 Level 3 Communications, LLC. All Rights Reserved. 10 Use Case: ESA ESA uses the Level 3 CDN infrastructure to disseminate large data sets to users around the world. Ozone Monitoring

11.  2009 Level 3 Communications, LLC. All Rights Reserved. 11 Use Case: ESA Continued Typical data sets exist of 150MB – 400MD extremely detailed satellite imaging that is put to the disposal of researchers worldwide. Air Pollution Monitoring ERS-2 Envisat

12.  2009 Level 3 Communications, LLC. All Rights Reserved. 12 Use case: ESA Continued Recent Testing of the infrastructure led to the following test results.  With 150MB per instance/granule, we achieved 400Mbps throughput from worldwide testing:  Done with 1 at a time: 66 seconds, rate: 66 seconds for each granule  Done with 5 simultaneously: 29 seconds, rate: 05 seconds for each granule  Done with 10 simultaneously: 116 seconds, rate: 11 seconds for each granule  Done with 20 simultaneously: 155 seconds, rate: 07 seconds for each granule  Done with 40 simultaneously: 166 seconds, rate: 04 seconds for each granule  Done with 80 simultaneously: 260 seconds, rate: 03 seconds for each granule status mid September (ENVISAT)

13.  2009 Level 3 Communications, LLC. All Rights Reserved. 13 ESA: Italian Earthquake In support to scientists and Italian Authorities, L’Aquila ESA SAR (radar) data have been put on the “Virtual Archive” using the Level 3 CDN infrastructure allowing:  Very high availability of service which is critical during crisis situations  Very fast data access for users around the world ESA SAR data of Geo-hazard sites having a high risk of Volcano eruptions or Earthquakes over highly populated regions are also being put on the “Virtual Archive” (Level 3 CDN), allowing fast and easy data access. Level 3 activated a new account for this specific application on our CDN platform within 12 hours

14.  2009 Level 3 Communications, LLC. All Rights Reserved. 14 Questions?  Bart Van Aanholt – Sales Director Bart.Vanaanholt@Level3.com  David Hutsebaut – Account Director David.Hutsebaut@Level3.com  Alex Kooistra – Sales Engineer Alex.Kooistra@Level3.com http://www.level3delivers.com/

15.  2009 Level 3 Communications, LLC. All Rights Reserved. 15