Transcript KPI`s
ITU Workshop on “Quality of Service and Quality of Experience of Multimedia Services in Emerging Networks” (Istanbul, Turkey, 9-11 February 2015) Network Performance Measurement Methodologies in Türk Telekom Mehmet Özdem SLA Manager, Türk Telekom [email protected] Agenda Evolution of Broadband Türk Telekom Facts and Figures Türk Telekom’ s Experience THE STRUCTURE OF TURK TELEKOM GROUP Mobile Subsc: 16.3 mn Fixed Voice Subsc: 11.4 mn Total BB Connection: 7.6mn IPTv Subsc: 300 K Consumer IP Traffic Growth (2013-2018) Global consumer IP traffic is expected to reach 108 exabytes per month in 2018 IP traffic is growing fastest in the Middle East and Africa Source: CiscoVNI, 2014 Global IP traffic has increased more than fivefold in the past 5 years, and will increase threefold over the next 5 years. Evolution of BB In Turkey #BB Customers in Turkey including Fixed and Mobile BB Customers 240.000 km fiber length Data Usage Per User Source: BTK quarter based reports Traffic Characterization in TT Globally, IP video traffic will be 79 percent of all consumer Internet traffic in 2018 TT Network Topology TT’s Experience on KPI’s Measurement Broadband Topology Broadband KPI’s Regulative KPI’s • Time to Repair for each line: 24h • • • • Annual Availability for each • line: %99.6 (35.4h outage) • • • • • Hourly CRC Errors (<30) DownStream Noise Margin (>12) Total FEC Errors (<5K) per sec. LossofFraming Waiting periods in each team (repertitor, NMS, site ) Repetitive fault rate DSLAM / BNG Traffic Utilizations Current/Attainable Speeds Measurement Systems • DLM • NMS • Fault Management System (xDSL CRM) • ACS International Standarts • ITU-T G.997.1 • ETSI EG 202 057-1 • ETSI EG 202 057-4 • TR 111 IPTv Topology IPTv KPI’s KPI’s KPI’s • Channel Availability per node • Channel Outages per node • IP Packet Loss (<= 5.85E-06 ) per node • RTPSE,RTPLS • • • • Overruns (<0.4) Underruns (<0.4) I Lost Frames (<0.3) MPEG Packet Discounter (<0.5) • Waiting periods in each team (repertitor, NMS, site ) • Repetitive fault rate • DHCP/NTP Server Availability Measurement System • • • • External IPTv Probes ACS NMS Fault Management System (xDSL CRM) • Umbrella Management International Standarts • ITU-T Y.1544 • ITU-T G.1080, G.1081,G.1082 • TR 126 • TR 135 NGN Topology NGN KPI’s Regulative KPI’s • Call Drop Rate for National Calls (<%1.5) • Call Drop Rate for International Calls (<%2.5) • Call Setup Time for National Calls (<3sn) • Call Setup Time for International Calls (<7sn) • Delay, Jitter,MoS Values between MGW’s and SoftSwitches • Availability per subscriber (from SS-MSAN outages) • Availability per MSAN (from SS-MSAN outages) • Trunk Utilizations (< %90) • SS CPU /Memory Values Measurement System • Signal Analysis System • External IP/SLA Probes • Umbrella Management • NMS International Standarts • ITU-T P 862 • RFC 3550 • RFC 6076 IP/MPLS Topology IP/MPLS KPI’s Regulative • Time to repair (min:12h) • Availability (min:%99.7) KPI’s • • • • • • • • Backbone delay Bacbone jitter Backbone Packet Delivery Traffic Utilizations (<%80) DNS Availability TCP Retransmissions TCP RTT TCP Quality Parameters Measurement System • Umbrella Management System • Fault Ticket System • External Probe International Standarts • ITU-T Y.1540 • ITU-T Y.1541 • ITU-T Y.1560 Conclusion KPI’s need to be clear, measurable and trackable. Periodic Quality Reports International Standarts (Y.1541,G1080) Service Quality Group (BTK,vendors,operators, academicians) Thank You! [email protected]