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IPTV Service Assurance Challenges For A Comprehensive Solution

IPTV Service Assurance Challenges For A Comprehensive Solution. Kaynam Hedayat CTO & VP, Engineering Brix Networks. New Business Requirements. Risk of not assuring the service Higher operational costs and expenses Customer churn

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IPTV Service Assurance Challenges For A Comprehensive Solution

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  1. IPTV Service AssuranceChallenges For A Comprehensive Solution Kaynam Hedayat CTO & VP, EngineeringBrix Networks

  2. New Business Requirements • Risk of not assuring the service • Higher operational costs and expenses • Customer churn • Streamline network and business operation for faster time-to-market • Need to increase ARPU and margin contribution with bundled, high-SLA services • Must assure the bundle • Gain market share, maximize customer retention • Win based on quality, not just price • Build customer loyalty

  3. The Impact of IPTV • IPTV is very complex • IP infrastructure, multicasting, middleware, DRM, xDSL, home gateway, STB, etc. • Increases traffic demands and network performance sensitivity • Picture quality and response time is everything • Users have high expectations and low tolerance • Quality of experience is elevated Source:Infonetics Research

  4. Key Performance Indicators IPTV Service Quality

  5. Top 3 Issues • Content availability • Availability of channel • Issues: content provider, multicast core, video source, access network, home network • Content quality • Quality of audio & video • Issues: multicast core, video source, access network, home network • Channel change time • User wait time while changing channels • Issues: IGMP performance, middleware, multicast core, UDP performance

  6. National Head-end National Content Regional Head-end Local Content Local Head-end Local Head-end Infrastructure Quality • Video-over-IP applications have unique, user-visible impairments • Caused by video-over-IP distribution and underlying IP network architecture • Key performance indicators (KPIs) that impact IP video service quality include jitter, latency, and frame loss • Infrastructure Verification • Evaluate quality and performance of multicast distribution layer • Monitor and report results on multicast IP video distribution for IGMP (join/leave) times for channel change response times

  7. Content Servers National Headends Content Servers Regional Headends Content Receivers Local Office Multicast Verification • National/regional verifiers distribute high- & standard-def channels • Local verifiers join/leave channels • High-availability deployment – hot-standby verifiers • KPIs – VQI, MOS, per channel change time

  8. Content Quality • Video content quality…picture quality is imperative • Brix Video Quality Index: Objective video quality score (1-5 scale) similar to MOS for voice • Video reference monitoring • Synthetic transactions of true video traffic • User control over traffic pattern • Well suited for troubleshooting,root cause analysis, and baselining • Live video session analysis • VoD services • Broadcast TV • Ideal for behavioral analysis and video quality issues

  9. Quality of experience • Testing channel change response time • Test and monitor IGMP (join/leave) latency, video start delay, and access to first I-frame • Test simulate channels by emulating set-top box for zap and VoD function delays • Live channel monitoring - join test channel • Monitor channel change performance • Monitor customer traffic • Capture customer’s experience • Provide usage statistics

  10. User Premises Edge Core Aggregate Service Assurance Architecture Visualize Analyze Aggregate Measure

  11. Element Integration (Last mile & STB) Live Channel Monitoring (Last mile & STB) User Channel Monitoring (Last mile & STB) InfrstructureTesting (Core to Edge) IPTV Service Assurance VODServer AcquisitionServer Distribution Server Subscription Server Content Encoder TVChannels CoreTransport IP Multicast Core Network Access Trasnport Broadband 3G Mobile Consumer

  12. Standards • Packet metrics • IETF IPPM – Accuracy and definition of metrics • Types of packet loss, effects of jitter, round-trip & one-way latency • Protocols • RTCP-XR: RFC3611, reporting of packet/frame-based statistics & video content metrics by endpoints • Video quality algorithms • Active full-reference: J.144 • Passive no-reference: ongoing work in VQEG & ITU-T

  13. Brix Networks285 Mill RoadChelmsford, MA 01824www.brixnet.comwww.TestYourVoIP.comwww.TestYourIPVideo.com

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