IxLoad: Testing Microsoft IPTV
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1 IxLoad: Testing Microsoft IPTV IxLoad provides a comprehensive solution for validating service delivery networks utilizing Microsoft IPTV. IxLoad offers a complete solution that simulates core systems of the Microsoft IPTV platform and allows service providers to scale to thousands of subscribers in order to determine quality of service under realistic load conditions. Several key performance indicators are measured, including Quality of Experience (QoE) using perceptual video quality metrics. IxLoad supports Instant Channel Change (ICC) capability across thousands of dynamic triple-play subscribers. IxLoad also emulates acquisition and distribution servers, called A-servers and D-servers. Each Ixia s high-performance XMV16 load module can simulate 12,800 MS IPTV clients, generating a video throughput of more than 14 Gbps. A fully loaded Optixia XM12 chassis can simulate over 150,000 clients and deliver 168 Gbps of video traffic. Large scale MS IPTV deployments can be created to measure the performance of the entire service delivery network. Key Features Emulation Simulation of large numbers of MS IPTV-like STBs per port, with the ability to scale to hundreds of ports Simulation of realistic tripleplay scenarios in which IPTV is actively used, along with voice and high-speed Internet access Use of multiple IPTV user profiles, each of which includes channel line-ups, viewing patterns and impairment options Flexible triple-play subscriber and service separation options using VLANs, 802.1p TOS, DHCP with option 82, and uplink/downlink persubscriber management Real World Testing Mixture of IPTV, voice and data traffic in the same test Support for RTP/UDP or UDP for video transmission Near wire-speed video transmission with very low jitter Support for interleaved ICC and VoD client commands Support for user-specified video content or synthetic data on A and D servers Comprehensive channel selection capability, including sequential, random and binomial distribution Dynamic channel watch behavior, including percent distributions Agoura Road Calabasas, CA USA Tel Document No.: Rev F August Page 1
2 What is MS IPTV? Microsoft IPTV (MS IPTV) offers digital television services over IP networks, including broadcast programming, and on-demand and rich interactive media services. These services are typically offered in a triple-play bundle to consumers, featuring voice, high-speed Internet, and IPTV. MS IPTV is a complete solution, built around industry-standard and Microsoft proprietary protocols. A number of high-end servers running on Microsoft platforms are used to provide content storage, content delivery, and security in a service provider s network. Acquisition servers perform live content acquisition from various local and terrestrial sources for linear broadcast TV. Distribution servers are placed at various points in the network to facilitate distribution of frequently used content. They also improves service response time and reduce channel change time. Customer premises IP set-top boxes (IP STB) run Microsoft proprietary software and protocols in order to maximize performance. This includes conditional access and digital rights management (CA/DRM) technologies that ensures that secure copyright content is only delivered to authorized set top boxes. Unlike channel switching on cable TV, where changes are instant, inherent switching and routing delays in an IP network cause channel changes to be visibly slower. Microsoft uses a combination of unicast requests from the STB to the D-Servers, followed by a multicast request to the network. The capability is referred to as Instant Channel Change (ICC). Testing MS IPTV The inherent complexity of MS IPTV poses a challenge for pre-deployment labs attempting to validate their service delivery network. The ability to measure their network s performance and reliability under realistic load scenarios is a crucial as part of capacity planning. IxLoad offers the optimal solution in ensuring network readiness. The core capabilities of IxLoad with respect to MS IPTV testing include: Subscriber simulation with Instant Channel Change behavior Triple-play subscriber simulation with ICC-like traffic, in conjunction with data and voice traffic A-server simulation for delivery of multicast channels into the network D-server simulation that provides initial unicast streams to subscribers Key performance metrics, including transport and perceptual video quality scores IxLoad, when used with the MS IPTV component simulations, can be used to: Measure the channel zap performance of an MS IPTV-like deployment Determine the ability of a transport network to carry triple-play traffic Measure the impact of network characteristics on video quality Measure the perceived quality of video delivered to the subscriber Key Features Emulation Simulation of large numbers of MS IPTV-like STBs per port, with the ability to scale to hundreds of ports Simulation of realistic triple-play scenarios in which IPTV is actively used, along with voice and high-speed Internet access Page 2
3 Use of multiple IPTV user profiles, each of which includes channel line-ups, viewing patterns and impairment options Flexible triple-play subscriber and service separation options using VLANs, 802.1p TOS, DHCP with option 82, and uplink/downlink per-subscriber management Real World Testing Mixture of IPTV, voice and data traffic in the same test Support for RTP/UDP or UDP for video transmission Near wire-speed video transmission with very low jitter Support for interleaved ICC and VoD client commands Support for user-specified video content or synthetic data on A and D servers Comprehensive channel selection capability, including sequential, random and binomial distribution Dynamic channel watch behavior, including percent distributions Customizable client headers for interoperation with portal services Configurable DSCP bit settings that may be used to test differentiated class of service for different video streams Specialized statistics for measuring channel change performance, including unicast-to-multicast switch Quality of Experience (QoE) Subscriber-level video quality metrics Transport-level video statistics including loss and jitter effects Perceptual video scores, including MDI and TVQM (MOS_V) Video/MPEG level analysis, including IPB frames received and impaired Sample Statistics and Performance Analysis ICC client requests sent/successful Video server requests processed Page 3
4 Key channel change performance measurements Video quality scores per subscriber, per stream Server Emulation Specifications Emulation Simulation of ICC behavior of A and D servers Simulation of V server for on-demand operation Content Synthetic and real payloads (MPEG2, MPEG4, H.264, VC-1) Features Distributed architecture to support hundreds of D servers Synchronization between A and D servers Single and multiple program transport stream, SPTS, MPTS RTP/UDP, UDP Options Unicast burst duration Maximum requests per channel Client Emulation OS/DSCP bits for A and D servers Emulation Simulation of Instant Channel Change behavior Simulation of on-demand clients Features Automatic selection of A and D server configured channel selections Channel viewing sequences to emulate channel watching patterns Channel selection to create random and prime-time scenarios Options Distributed D server selection Watch durations (per subscriber or groups of subscribers) Channel selection to simulate load patterns Page 4
5 D to A switchover behavior D to A switchover delay Jitter buffer configuration Video quality measurements Statistics Server 1. IPTV D Server Requests Received 2. IPTV D Server Requests Successful 3. IPTV D Server Requests Failed 4. IPTV D Server Requests Failed for Bandwidth 5. IPTV V Server Requests Received 6. IPTV V Server Requests Successful 7. IPTV V Server Requests Failed 8. IPTV V Server Requests Failed for Bandwidth 9. IPTV Active A Server Streams Playing 10. IPTV Active D Server Streams Playing 11. IPTV Active V Server Streams 12. IPTV Active V Server Streams Playing 13. IPTV Active V Server Streams Paused 14. V Server Streams Bit Rate (Kbps) 15. A Server Streams Bit Rate (Kbps) 16. D Server Streams Bit Rate (Kbps) 17. IPTV Total Streaming Bit Rate (Kbps) Ordering Information Chassis Licenses: IxLoad-Video-IPTV-2015, Software Bundle, Layer 4-7 Performance Test Application; Enables support for basic RTSP, IPTV (Multicast), Video-ADVANCED (VoD). Includes Video Quality VQMON engine for up to 10Gbps, ADVNET-DHCP to emulate DHCP enabled clients and Software Impairment on selected hardware IxLoad Multiplay-2015, Software Bundle, Layer 4-7 Performance Test Application; Data-Video-Voice package includes: Data: Enables support for HTTP, HTTPS, TCP Session, FTP, DNS, Mail (SMTP, POP3 and IMAP), SSH, RADIUS, TFTP, Application-Replay, DHCP, LDAP, Telnet, Stateless-Peer and StreamBlaster emulations; Video: Enables support for basic RTSP, IPTV (Multicast), Video-ADVANCED (VoD), Adobe Flash Client, Apple HLS Client, Microsoft Silverlight Client, Adobe HDS Client and DASH Client emulations. Includes Video Quality VQMON engine for up to 10Gbps and TCP VQ Video quality for TCP video traffic for up to 10 Gbps; Voice: Advanced VoIP SIP & RTP, Audio Codecs, H.323, VoLTE extensions, and Bulk SIP & MGCP. Also includes Voice Quality engine for up to 10Gbps, Video Quality engine for up to 10Gbps conversational video traffic; Access: Enables support for Advanced Access networking protocols such as DHCP for IP address acquisition, DHCP Server, PPP, L2TP and IPsec. Note: StreamBlaster, H.323 and Bulk SIP & MGCP are supported on selected load modules Page 5
6 Appliance Licenses: IxLoad PerfectStorm ONE VIDEO, Software Bundle, Layer 4-7 Performance Test Application Includes: RTSP, IPTV, Video-ADVANCED FLASH, APPLE HLS, Silverlight, Adobe HDS, MPEG-DASH Video Quality VQMON engine for up to 10Gbps TCP VQ - Video quality for TCP video traffic for up to 10 Gbps IxLoad, PerfectStorm ONE Multiplay, Software Bundle, Layer 4-7 Performance Test Application; Data, Voice, Video, Access, VPN and Storage bundle for PerfectStorm ONE appliances. Includes: IxLoad PerfectStorm ONE DATA, IxLoad PerfectStorm ONE VIDEO, IxLoad PerfectStorm ONE VOICE, IxLoad PerfectStorm ONE AUTH, IxLoad PerfectStorm ONE VPN/ACCESS, and IxLoad PerfectStorm ONE STORAGE IxVM License: IxVM, IxLoad Tier-3 FLOATING Subscription license. Includes the following IxLoad protocols supported on IxVM for the purchased term (List price is per unit, per year). HTTP, HTTPS, FTP, DNS, DHCP, LDAP, TFTP, Radius, Mail (IMAP, POP3, SMTP), Storage, IxLoad-Attack and AppLibrary. REQUIRES: License term to be specified (MUST be purchased in multiples of years). Enables 1Gig throughput per unit. INCLUDES IxVM Software Platform Framework, FLOATING. Enables support for IxVM IxServer This material is for informational purposes only and subject to change without notice. It describes Ixia's present plans to develop and make available to its customers certain products, features and functionality. Ixia is only obligated to provide those deliverables specifically included in a written agreement between Ixia and the customer. Page 6
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