Learn Content Delivery Network (CDN) Basics

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Do you have questions about what exactly is a Content Delivery Network (CDN), how does it work, and how can a CDN help my website? In this quick presentation, you will gain a better understanding of what a CDN is and the advantages of using it for your website.

Published in: Internet, Technology

Learn Content Delivery Network (CDN) Basics

  1. 1. CDNETWORKS.COM
  2. 2.  THE INTERNET  INFRASTRUCTURE  GLOBAL NETWORK SERVERS  NETWORK PERFORMANCE COMPARISONS  SECURITY OUTLINE AGENDA CDNETWORKS.COM
  3. 3. THE GLOBAL INTERNET IS COMPLEX PoP 3 PoP 2 PoP 1 Tier 3 Networks (Multi-homed ISP) IXC Tier 1 Networks Tier 3 Networks (single homed ISP) Tier 2 ISPs Global Network Providers Internet Users Broadband Providers Tier 2 Networks Regional ISPs, University Networks Transit Transit Transit Transit Peering CDNETWORKS.COM
  4. 4. INTERNET RTT LATENCY • DISTANCE • SPEED OF LIGHT 50 ms 150 ms LONDON NEW YORK 500 ms SHANGHAI GLOBAL INTERNET CHALLENGES SAN FRANCISCO CDNETWORKS.COM
  5. 5. GLOBAL INTERNET CHALLENGES NETWORK PROBLEMS • NETWORK OF NETWORKS BOTTLENECKS • PACKET LOSS • CONGESTION • RETRANSMISSION SAN FRANCISCO USER CDNETWORKS.COM
  6. 6. MULTIPLE RTTs FOR CONNECTION NEGOTIATION GLOBAL INTERNET CHALLENGES INEFFICIENT PROTOCOLS / RTT MULTIPLIER •CHATTY PROTOCOL •TCP SLOW START •TENS OF BACK & FORTH ROUND TRIPS •30-50 RTTs FOR ONLY 1 PAGE •CONNECTION LOAD AT ORIGIN SAN FRANCISCO logo.gif File USER CDNETWORKS.COM
  7. 7. GLOBAL INTERNET INFRASTRUCTURE CDNETWORKS.COM
  8. 8. STATIC CONTENT Base Web Page and graphics DYNAMIC CONTENT Changing / moving content 2 TYPES OF CONTENT CDNETWORKS.COM
  9. 9. WITHOUT A CDN USER SLOW Dynamic Content logo.gif File (Static Content) BIG.pdf File (Static Content) ORIGIN CDNETWORKS.COM
  10. 10. WITH A CDN (STATIC CONTENT) FAST logo.gif File (Static Content) BIG.pdf File (Static Content) ORIGIN CDN COPY USER CDNETWORKS.COM
  11. 11. WITH A CDN (DYNAMIC CONTENT) USER SUPER HIGHWAY “MIDDLE MILE” Dynamic Content ORIGIN CDNETWORKS.COM
  12. 12. WITH CDN (SECURITY) ORIGIN USER Dynamic Content logo.gif File (Static Content) BIG.pdf File (Static Content) CDNETWORKS.COM
  13. 13. KEY TAKEAWAYS Global Auction Website Origin 3 Datacenters CDN (CDNetworks)  GLOBAL INTERNET CHALLENGES – RTT & LATENCY (SLOW)  A CDN BRINGS STATIC CONTENT CLOSER TO USERS  A CDN ACCELERATES DYNAMIC CONTENT  A CDN DEFENDS, ATTACKS & ABSORBS SECURITY THREATS CDNETWORKS.COM
  14. 14. FOR MORE INFORMATION CONTACT INFO@CDNETWORKS.COM OR +1408.228.3700 END

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