1. Content Distribution Overview
DYXnet ONE VAS:
Content Distribution Overview
(Version )
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2. Challenges and Solutions

3. Challenges
Case 1: within PRC
Every end user goes through undetermined Internet path to the source server
All traffic are destined to the source server, i.e. bandwidth consumption and loading of source server is very high
Some users may experience poor performance if the traffic needs passing through different Internet provider network

4. Challenges
Every end user goes through undetermined Internet path to the source server
All traffic are destined to the source server, i.e. bandwidth consumption and loading of source server is very high
Users in PRC may experience poor performance if the source server is located outside PRC
Case 2: across PRC

5. Solutions Optimize the access path between end users and source server
Add more servers to lower source server loading
Upgrade bandwidth
Place servers in different cities / provinces in PRC to improve performance
Content Distribution service meets all the above conditions!

6. DYX’s Anwser:
Content Distribution

7. Content Distribution What is Content Distribution and how it works?
It consists of THREE major components:
Smart DNS (Global Load Balancing) – redirect requests to the optimal server (CDN node), typically one that is nearest to the end user
CDN node – geographically dispersed caching machines, act as source server to provide content

8. Smart Bandwidth (cont.)
What is Content Distribution and how it works?
Infrastructure
105 CDN nodes on national backbone
50Gbps converged bandwidth
Node Clusters consist of 4U Xeon-based Blade Server
7x24x365 proactive network monitoring & maintenance
Internet network coverage over China Telecom, China Netcom, China Mobile & China Unicom

9. Smart DNS DNS lookup www.abc.com
End user’s machine asks DNS server (typically provided by ISP): What is the IP address of
DNS lookup
DNS server asks the Smart DNS server.
* Hostname lookup steps simplified.

10. Smart DNS DNS lookup www.abc.com DNS server answers the end user.
Smart DNS server will reply IP address of nearest to end user, depending on the IP address of DNS server used.

11. Types of Content Static content
Static content
Content is cached when passing through to speed up future requests
Cached
Cached

12. Types of Content Static content
Content is cached when passing through to speed up future requests
Cached
Cached

13. Types of Content Static content
Content is cached when passing through to speed up future requests
Cached
Cached
Cached
Cached

14. Types of Content Static content
Content is cached when passing through to speed up future requests
Cached
Cached
Cached
Cached

15. Types of Content Dynamic content Not cacheable
Dynamic content
Not cacheable
Traffic going through optimized path can be much faster than default access path

16. Types of Content Dynamic content Not cacheable
Traffic going through optimized path can be much faster than default access path

17. Types of Content Dynamic content Not cacheable
Traffic going through optimized path can be much faster than default access path

18. Types of Content Dynamic content Not cacheable
Traffic going through optimized path can be much faster than default access path

19. Types of Content Mega download
- Content is pushed to CDN node to speed up all requests
- Especially effective for large files
Cached
Cached
Cached
Cached

20. Types of Content Mega download
Mega download
- Content is pushed to CDN node to speed up all requests
- Especially effective for large files
Cached
Cached
Cached
Cached

21. Types of Content Video streaming
Video streaming
- Video stream is split in CDN nodes so many users can be served by single session from source

22. Content Distribution

23. Results
Virtually there are many servers providing the same service at the same time
All CDN nodes are distributed in different cities and provinces in PRC with various Internet service providers
All incoming traffic from PRC are redirected to the nearest CDN server in PRC
End users can always enjoy the best performance
Case 1: within PRC

24. Results
Virtually many servers are providing the same service at the same time
All CDN nodes are distributed in different cities and provinces in PRC with various Internet service providers
All incoming traffic from PRC are redirected to the nearest CDN server in PRC, requests outside PRC are redirected to the source server
End users can always enjoy the best performance
Case 2: across PRC

25. Portal Site
Login screen:

26. Portal Site
Daily utilization report:

27. Portal Site
Weekly utilization report:

28. Portal Site
Monthly utilization report:

29. Case Study
Case Study 1: Gigabyte
Source server placed in Diyixian SH IDC, subscribed bandwidth is 30Mbps
Single source server serving users from everywhere in PRC

30. Case Study Before using Content Distribution:
Bandwidth utilization of source is full! (95th percentile is Mbps)
All users’ requests are destined to source and access speed is restricted because of the bandwidth limit.
Server loading is heavy.

31. Case Study Bandwidth utilization at source is lowered
Using Content Distribution:
Bandwidth utilization at source is lowered
Bandwidth bottleneck removed
Higher access speed and download time is reduced

32. Case Study Using Content Distribution:
Bandwidth utilization of source dropped 82%! (95th percentile is 5.531Mbps)
Server loading is relieved also.

33. Case Study Using Content Distribution:
Users’ requests are redirected to CDN nodes instead of source, bandwidth consumption raised dramatically to 84.23Mbps (95th percentile).
Bandwidth limit at source is no longer a bottleneck.

34. Case Study City Download time before using Content Distribution
End-user experience:
City
Download time before using Content Distribution
Download time using Content Distribution
% improved
Beijing
642
514
19.94%
Shanghai
1207
765
36.62%
Chengdu
669
491
26.61%
Shenzhen
405
399
0.01%
Download speed improved significantly:
Download time reduced up to 36%!

35. Case Study Source server placed in HK or TP
Case Study 2: Online gaming
Source server placed in HK or TP
Performance is poor for requests from PRC
Bandwidth utilization and loading of source server is high

36. Case Study Requests from users in PRC are redirected to CDN nodes
Using Content Distribution:
Requests from users in PRC are redirected to CDN nodes
Traffic from CDN nodes to source server goes through Diyixian backbone, performance is greatly improved for both static and dynamic content
Static content is cached in CDN nodes to enhance access speed and further lower bandwidth consumption of source

37. Case Study Source server placed in HK or TP
Case Study 3: Video Streaming
Source server placed in HK or TP
Video streaming is not smooth for users in PRC
Source server can’t be placed in PRC due to legal issue

38. Case Study Using Content Distribution:
Video session is split in CDN node, many users can be served by single session from source server
Traffic from CDN node to source server goes through Diyixian backbone, performance is ideal for time-sensitive applications like video streaming
CDN nodes can be configured to download video stream from other CDN node or source server
Source server is not placed in PRC, no legal concerns

39. Pricing Model Charging scheme: by bandwidth (per Mbps)
Notification will be sent to pre-registered contacts when peak utilization is over subscribed bandwidth
If 95th percentile of actual utilization is over subscribed bandwidth, exceeded utilization will be charged per Mbps
Works best with DYXnet ONE IDC and Content Distribution Plus

40. Corporate Overview

41. Background Founded in 1999 by former senior management of PSINet HK
Operating in Hong Kong (HQ), Mainland China, Taiwan, Singapore and Vietnam
400+ staff in 12 offices (plus 1,000+ staff in IP Call Centres)
6 IDCs (HK, BJ, SH, TP) & 4 IP Call Centres (BJ, SH, GZ)
37 cities with Network POPs in Asia with services covering 700 cities
Serving over 6,500 MPLS VPN clients’ sites and hosting over 4,000 clients’ servers
Over 2,500 enterprise clients across regions
The only foreign JV in PRC has nationwide IP VPN / IP Call Centre / IDC licenses

42. International Certifications
ISO 9001 since 2007
ISO since 2007
~100% engineers with CCNA/CCDA/CCNP/CCIP/MCSE certifications
20%+ project managers with PMP/CPMP certifications
Cisco EUC Specialized Partner since 2006
Cisco Premier Partner since 2006
Hong Kong SuperBrands 2005
Microsoft Certified Partner since 2002
Cisco Powered Network since 2000
Polycom Solution Partner since 2006
Nationwide IP VPN / IP Call Centre / IDC licenses in PRC

43. Awards 2009 The Best MPLS VPN Service Provider
2009 Outsourced Contact Centre of the Year (Inbound)
2009 Southern China Contact Centre of the Year (over 100 Seats)
2009 Off-shore Contact Centre of the Year
2009 China Best Outsourcing Contact Centre of the Year  
Cisco FY2009 Q2 Best Contributor Award of UC
2008 – 2009 China Best Outsourcing Service Provider
Top 50 Service Outsourcing Providers in China 2008
2008 Service Outsourcing Company in China (Top 50)
2008 Best Contact Centre in China
2008 Inbound Contact Centre of the Year (Off-shore)
2008 Outbound Contact Centre of the Year (Outsourced)
2008 Polycom Best Partner Award
2008 The Best Contact Centre in China (Outsourced)

44. Our Vision: FAST
Combine Forward-thinking ICT strategies with world-class Technologies and Agile services to help customers and partners Synergize for business success.
FAST
Agility
Synergy
Technology
Forward-thinking

45. DYXnet Business Empowerment Network
<Note:Follow the animation, the speaker should list the elements of DYXnet Business Empowerment Network one by one first.>
Global Network Infrastructure
World-class ICT services
International Business Partnership
<Then, following with the elaboration:>
DYXnet Business Empowerment Network
This powerful architecture integrates strong foundation of robust infrastructure, extensive business partnerships and world-class ICT services.
With DYXnet’s Business Empowerment Network, we deliver advanced ICT technologies to customers and partners throughout Greater China, while also bringing China’s many opportunities to our customers and partners around the world.

46. 37 Point-of-Presences covers more than 700 cities in Asia
Committed Service Level Agreement (SLA) quality
Around-the-clock network monitoring, management and reporting
Operate with Industry’s best-practices - ISO and ISO9001

47. Network & Operation

49. World-class ICT Services

50. Industry Solutions Retail Logistic
ONE VPN Retail - Network connectivity for shops
Co-location – High availability for Retail Application
Call Centre Outsourcing – Agent, CRM or Hotline Outsourcing
IP Telephony – IP PBX for self-built hotline support internally
ONE VC – multi-site HD VC accessibility with shops
Logistic
ONE VPN Enterprise / Corporate / Corporate Plus - Network connectivity for main office and branches
ONE VPN Retail – Network connectivity for outpost and satellite offices
ONE VC – Reduce the cost of overseas communications and business travel with multi-site HD video-conferencing

51. Industry Solutions Manufacturing Financial Services
ONE VPN Enterprise / Corporate / Corporate Plus – Network connectivity for main office, branches and factories
Internet Plus – Premium Internet access for PRC factories
ONE VC – Reduce the cost of factory and office managers’ communications and business travel with multi-site HD video-conferencing
Financial Services
ONE VPN Retail – Network connectivity for shops
Co-location – High availability for web content and application
Content Distribution – Customers experience enhancement
Content Distribution Plus – VIP customers experience enhancement
ONE VC – Boost productivity and decision-making by hosting internal meetings between branch offices via HD video-conferencing

52. Industry Solutions Web Hosting Providers Online Game Providers
Co-location – Facility management and business enablement
Online Game Providers
Clean Bandwidth – Business protection and continuity from network attack
Call Centre Outsourcing – Agent, CRM or hotline outsourcing
ONE VC – Strengthen your collaboration with regional distributors, business partners and suppliers using a low-cost HD video-conferencing system

53. International Business Partnership
Cisco Premier Partner
Cisco Express Unified Communications (EUC) Specialized Partner
Microsoft Certified Partner
Polycom Solution Partner
Other Local Solutions Partners

54. Our Competitive Advantages
The leading Greater China ICT Service Provider with over 10 years experience
Professional and seasoned service team
Solid experience in PRC with local expertise and strong Telco relationship
Comprehensive and flexible solutions
Competitive and flexible pricing scheme
Flexible billing options

55. Thank You!