1. Broadband Quality of Service in Sri Lanka Test Results

2. Advertised Download Speed Advertised Upload Speed India Airtel512 kbps BSNL - Business2 Mbps256 kbps BSNL - Home2 Mbps256 kbps Hathway256 kbps Sri Lanka Dialog2 Mbps512 kbps SLT - Business2 Mbps512 kbps SLT - Home512 kbps128 kbps Singapore StarHub*1 Mbps256 kbps Packages tested * Partial testing

3. Test Results  Throughput (Download speed/Upload speed) Business Packages performance in ISP domain Local domain International level Business vs. Home performance Sri Lanka vs. India/Singapore performance  Delay metrics (RTT/jitter)  Loss metrics (Packet Loss)

4. Test Results Throughput - Download speed

5. 2 Mbps Download speed (Business Packages): Relatively healthy in ISP domain… > 75% ISP

6. SLT (2M/512k) Dialog (2M/512k) Download speed (Business Packages): … and does not significantly vary among different days (be it week days or weekend) ISP

7. 2 Mbps Download speed (Business Packages): …poor in Local domain > 75% Local

8. SLT (2M/512k) Dialog (2M/512k) Download speed (Business Packages): …also variations are relatively higher among three days (interconnection issues?) Local

9. 2 Mbps Download speed (Business Packages): …even poorer when accessing International sites > 75% Int’l

10. SLT (2M/512k)Dialog (2M/512k) Download speed (Business Packages): … that does not significantly vary across days Int’l

11. Download speed (SLT Business vs. SLT Home packages): …in % terms, home is better than business

12. Download speed (SLT Business vs. SLT Home packages): …and comparable in reaching international sites

13. Download speed: India and Sri Lanka (ISP Domain): Sri Lanka performs slightly better ISP > 75%

14. Download speed: India and Sri Lanka (Local Domain): India performs better Local > 75%

15. Download speed: India and Sri Lanka (accessing International servers): India looks good Int’l > 75%

16. Download speed Sri Lanka and Singapore (accessing International servers): Singapore wins Int’l > 75%

17. Test Results Throughput - Upload speeds

18. 512 kbps Upload speed (Business packages): Somewhat healthy in ISP domain ISP > 75%

19. 512 kbps Upload speed (Business packages): …a bit down at Local Domain Local > 75%

20. 512 kbps Upload speed (Business packages): …and poor in accessing International sites Int’l > 75%

21. Upload speed (SLT Business vs. SLT Home packages): …here too in %, home is better than business, but not in actual speeds (aprox 100 kpbs) (aprox 200 kpbs)

22. Upload speed Sri Lanka and Singapore (accessing International sites): Singapore wins Int’l > 75%

23. Test Results Jitter and Packet Loss

24. Jitter : Sometimes not enough quality for video/high quality audio (<+10ms) but satisfactory for other apps

25. ISP –Week DayLocal –Week DayINT –Week Day ISP –WeekendLocal –WeekendINT –Weekend Packet Loss : Most of the times, but not always, within acceptable limits (5%)

26. Where is the bottleneck?

27. Accessing www.lankacom.net through SLT (2M/512k)www.lankacom.net NB: All IP addresses are within SL (www.whois.net) 65 ms 25 ms 170 ms 10 ms Local

28. Accessing www.yahoo.com through SLT (2M/512k)www.yahoo.com NB: Upto 5 th hop IP addresses are within SL (www.whois.net) 65 ms 25 ms 170 ms 10 ms Int’l

29. Using RTT/latency in broadband QoS regulation Local Network Latency (LNL): Round Trip Time (RTT) taken to access a national or site hosted within the country Requirement: LNL < 85ms for 95% of the peak time International Network Latency (INL) : Round Trip Time (RTT) to the first US entry point. Requirement: INL < 300ms for 95% of the peak time

30. Where do we stand? Package Local Network LatencyInternational Network Latency RequirementAchivementPassed?RequirementValuePassed? Airtel (512k/512k)85 ms8 ms 300 ms217 BSNL (2M/256k)85 ms191 ms  300 ms295 SLT (2M/512k)85 ms11 ms 300 ms258 ISP1 – Out: Exit from local ISP FEP: First Entry point to USA

31. Few points to ponder o Do we always get what is promised, especially when downloading from International sites? o Are these trends transitional or long-term? o Are Home packages better value for money than Business packages? o Can we be complacent because the situation is not too different in India? o Should we demand better QoS for Games/video? o Should we adopt Singapore standards or more stringent ones?

32. Thank You! wattegama@lirne.net www.lirneasia.net Thanks to LIRNEasia team, Prof. Timothy Gonsalves and team, Ranga Kamaladasa, Sriganesh Lokanathan, Sanjana Hattotuwa, Sanath Siriwardena and all who contributed ideas/opinions in online discussions at LIRNEasia blog.