Broadband Quality of Service
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1 Broadband Quality of Service Experience in Bhutan May 211 Thimphu This work was carried out with the aid of a grant from the International Development Research Centre, Canada and the Department for International Development, UK.
2 What gets measured gets improved. But who can measure BB quality? The regulator All networks can be monitored/measured Can order operators to change performance May or may not make data available to consumers The operators Only their own network Users/consumers Only their own ISP But useful only if comparison possible
3 Different tools for consumers to measure BB quality Several existing methods SpeedNet, etc. Emphasis on download and upload speeds New method: AT-tester software Methodology and software developed by IIT-Madras Additional metrics other than throughput Software freely available at Testing results automatically uploaded to same web site; viewable by all
4 What is measured: metrics explained Upload and download speeds Measured in kilo (or mega or giga) bits per second. Basic measure of speed Round Trip Time (RTT) Time taken for a packet to reach a destination and return Jitter Average Variation of RTT Packet Loss Number of packets (as %) which do not reach the destination
5 Why different metrics? Throughput Delay Service Down Up RTT Jitter Loss Browse (text) Browse (media) Download file Upload File Transactions Streaming media VOIP Games
6 3 domains are tested
7 More on methodology Multiple packages tested Leased lines, ADSL, Mobile internet 3 domains tested Within ISP, national, international (USA) At multiple times of the day 6 times, spread out through the day Include Peak and off-peak Each time, multiple readings Outliers eliminated Multiple locations in the country Thimphu, Paro Inside commercial premises (due to availability)
8 Results from April 211
9 1. ADSL over-delivers within ISP domain Download in kbps-from ISP -ADSL packages download in kbps Time Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro
10 . and in international domain Download in kbps- International -ADSL packages Dowanload in kbps Time Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro
11 2. Mobile BB underperforms in ISP domain. Download in kbps-isp 3G download in kbps Time Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu
12 and in international domain Download in kbps- International - 3G Dowanload in kbps Time Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu
13 and makes current 3G BB less suitable for streaming/voip but Jitter when pinged to an International server Jitter (ms) Time Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu
14 3. For all packages, actual performance vs. stated shows huge variations within ISP Domain Ratio of actual to stated speed ISP server Ratio of actual to stated (%) % Time Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu note: 3Gspeed taken as 55 kbps
15 . and in international domain Ratio of actual to stated speed - International server Ratio of actual to stated (%) % Time 23 Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu note: 3Gspeed taken as 55 kbps
16 4. Performance drops going from ISP domain to National domain (another ISP) as seen by download speeds.. Download in kbps- ISP (All packages) download in kbps Download in kbps- National (All packages) Download in kbps Time Time Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu
17 and by the increase in packet loss Packet Loss when pinged to an ISP server 5 Packet Loss when pinged to a National server 12 Packet loss (%) Packet loss (%) Time Time Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro
18 5. Int l Round Trip Time (RTT) too high compared regulated standards in India, Singapore RTT when pinged to an International server RTT (ms) 1 5 (Indian terrestrial)35 (Singapore) Time Druknet Leased line (512 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro
19 6. Low value for money from many technologies for users most of the time (international domain) Download from International - kbps per USD Dowanload(kbps) per USD Time Druknet Leased line (512 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro
20 Compared to other countries also, many BT packages give low value for money. But not all Download from International -kbps per USD Dowanload(kbps) per USD Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Time D o w n lo a d s p e e d ( k b p s ) p e r d o lla r Value for Money - Reaching International servers BSNL (256 kbps) Bangalore, IN BSNL (1 Mbps) Bangalore, IN Airtel, (256 kbps) Delhi, IN Airtel (1 Mbps) Delhi, IN Bell (6 Mbps) Ottawa, CA Rogers (1 Mbps) Ottawa, CA Verizon (3 Mbps) Buffalo, US Comcast (6 Mbps) Denver, US
21 What can Bhutan do? Consumers Download AT-Tester from configured for BT) Run the tests (automatic, no interventions required) Make purchase decisions based on this BICMA Publicize the availability of software and the results (to empower consumer) Use software as a tool for diagnosis Operators Over time develop differentiated products for consumers All stakeholders need to recognize this is early stages light touch regulation more collaboration (vs. command & control) consumer centric thinking
22 Thank You.
23 Test locations DruknetADSL (256 kbps), TashiCommleased line (256 kbps) and Bhutan telecom 3G were tested at: Athang ICTech, Yarkay Plaza, Chang Lam, Thimphu Druknet Leased line (512 kbps) was tested at: JICA Bhutan Office, Doybum Lam/ Memorial Chorten, Thimphu, Bhutan. P.O.Box- 217 DruknetADSL (256 kbps) was tested at Tsheryoen's Cafe, Paro Town(Opp. Telecom office), Paro, Bhutan
24 Tested Packages Price in USD Price in Nu coversion rate Druknet Leased line (512 kbps) Thimphu Tashi InfoComm Leased line (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Thimphu Druknet (prepaid) ADSL (256 kbps) Paro Bhutan Telecom 3G (55kbps to 1Mbps) Thimphu
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