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INTERNET QUALITY MEASUREMENTS
Dr Vladica Tintor
Deputy Director
Net Neutrality
• Net neutrality is reflected in the principle of treating all Internet content equally without discrimination, regardless of users, content, website, platforms, applications, equipment, communication system and transmission technologies.
• A main feature of net neutrality is QoS.
4/22/2015 2SEE 4 / RIPE NCC Regional Meeting
Quality of Service
• Quality of the Internet service in the Republic of Serbia is monitored in three ways:
1.ISP reports
2.Client-side reference measurment software (pending)
3.Measuring at user premises using measurement equipment
4/22/2015 3SEE 4 / RIPE NCC Regional Meeting
QoS - Rulebook
• Quality parameters for public voice service in public telephone network at a fixed location
• Quality parameters for public services in public mobile communication network
• Quality parameters for public voice service provided over the Internet
• Quality parameters for broadband access
• Quality parameters for media content transmission services
• Quality parameters for electronic communication networks under general authorization regime
• Quality parameters for electronic communication networks under public bidding regime
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Internet service
• Service Supply Time; • Bill Correctness Complaints;• Customer Complaints Resolution Time;• Customer Relations ;• Professionalism of help line ;• Bill Correctness Complaints Operator Response Time;• Response time for operator services;• Throughput;• Delay (one-way);• Jitter;• Packet Loss;
4/22/2015 5SEE 4 / RIPE NCC Regional Meeting
QoS Measurement Software
• There are simple products such as Speed Test available on the market
• There is also specialized software that is installed at IXP, offering the following options:– Different access options (mobile, WLAN, browser);
– Analysis of the parameter results by operator;
– Analysis of the parameter results by period (monthly, quarterly, semi-annually, annually);
– Analysis by frequency bands (2G, 3G, 4G)
– Analysis by technology: mobile (EDGE, UMTS, LTE), fixed(DSL, LAN, FTTx) or WiFi
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• Measuring at least following IP layer parameters (BEREC recommendation):– upload and download speed,
– delay,
– jitter,
– packet loss ratio.
QoS Measurement Software
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Source: https://www.netztest.at/en/
4/22/2015 SEE 4 / RIPE NCC Regional Meeting 9Source: https://www.netztest.at/en/
QoS Measurement Device
Agilent/JDSU DNA PRO J6803B with Triple play analyzer software
Test set JDSU HTS-3000, JDSU SmartClass Ethernet
4/22/2015 10SEE 4 / RIPE NCC Regional Meeting
QoS Measurement Vehicle
• Vehicle equipped with antenna system and dedicated scanners for monitoring the quality of wireless telecom networks in the frequency band 30 MHz - 6 GHz.
• The scanners enable the measurements in LTE-FDD, LTE-TD, GSM, WCDMA, LTE, CDMA2000® 1xEV-DO, TETRA and WiMAX™ wireless networks.
4/22/2015 11SEE 4 / RIPE NCC Regional Meeting
Key Performance Indicators (KPI)
• Throughput [kbit/s]
• Frame Delay [ms]
• Frame Delay Variation (Jitter) [ms]
• Frame Loss Ratio
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KPI measurement in symmetric mode RFC2544
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KPI measurement in asymmetric mode RFC2544
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Type of Service Throughput (Mbps)
Frame size (bytes)
HDTV (MPEG-2) 19 1372
HDTV (MPEG-4) 7 1372
SDTV (MPEG-2) 4 1372
SDTV (MPEG-4) 2 1372
VoIP (G.711U, 56k) 0,1 128
VoIP (G.711A, 56k) 0,1 128
VoIP (G.711U, 64k) 0,1 138
VoIP (G.711A, 64k) 0,1 138
VoIP (G.723/5, 3k) 0,1 65
VoIP (G.723/6, 3k) 0,1 66
VoIP (G.728) 0,1 78
VoIP (G.729/G.729A) 0,1 68
Type of Service
4/22/2015 15SEE 4 / RIPE NCC Regional Meeting
Type of Service Required Throughput
Sensitivity :
Delay Jitter Frame Loss
VoIP Low High High Medium
Video Conferencing High High High Medium
Streaming Video High Medium Medium Medium
Streaming Audio Low Medium Medium Medium
Email Low Low Low High
File Transfer Medium Low Low High
Service Sensitivity to KPI Parameters
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ITU-T Y.1564 Simultaneous Service Testing
4/22/2015 17SEE 4 / RIPE NCC Regional Meeting
Regulatory Agency for Electronic Communications and Postal Services (RATEL)
Višnjićeva 811 000 BelgradeRepublic of SerbiaPhone: +381 11 3229 970Fax: +381 11 3232 537
www.ratel.rs [email protected]
Thank you for your attention
4/22/2015 18SEE 4 / RIPE NCC Regional Meeting
