Solution Detail
HLS/MPEG-DASH, Live/VOD, IPTV/OTT, CDN and Voice Quality
Validate streaming and VoIP before launch or during troubleshooting under impairments, congestion and concurrency. Turn slow startup, buffering, bitrate drops, corruption and distorted/broken audio into repeatable metrics, session evidence and captures.
Core Emulation Equipment
Products
4
Scenarios
10
Evidence
PCAP
Why
Quality depends on more than bandwidth: cellular handovers, Wi-Fi jitter, home congestion, regional delay, slow CDN origins, failed segments, TLS/DNS issues, retransmissions, competing uploads and endpoint buffers all matter. Video emphasizes startup, rebuffer count/duration, adaptation, clarity and completion; voice emphasizes MOS, latency, jitter, loss, PESQ, POLQA and gaps.
RFC 8216 defines HLS delivery and client/server behavior; ISO/IEC 23009-1 defines DASH manifests and segments; ITU-T P.1203 models adaptive streaming QoE; RTSP/RTP remains common in surveillance and private networks. Cover impairments, segments, buffers, bitrate policies, CDN paths, voice quality and packet evidence—not throughput alone.
ChaosBridge reproduces cellular, Wi-Fi, broadband, dedicated, regional and satellite impairments. Traffic Generation supplies background loads and field PCAP replay alongside real players and voice endpoints. BestPerf establishes baselines, while Flow Hunter observes HLS, DASH, HTTP/TLS, DNS, RTSP/RTP, SIP and packet evidence for regression.
Topology
How
Identify live/VOD, IPTV/OTT, short video, CDN, enterprise/contact-center VoIP, broadcasting or surveillance. For video, define startup success/time, rebuffer count/duration, adaptation, average/minimum bitrate, completion, VMAF and experience thresholds. For voice, define MOS, latency, jitter, loss, PESQ, POLQA, gaps and call success.
Place ChaosBridge between endpoints, gateways, CDN edges, origins, voice gateways or surveillance platforms. Define cellular, Wi-Fi, broadband, enterprise, regional, satellite and peak-congestion profiles with directional bandwidth, RTT, jitter, burst loss, reordering, outages and recovery.
Generate upstream/downstream packets, IMIX and bursts, increasing streams and rates to find gateway, firewall, CPE, egress and QoS limits. Real players, voice endpoints or specialist tools execute live/VOD playback and calls.
Deploy Flow Hunter at exits, CDN edges, origins, voice gateways or TAPs. Correlate DNS, TLS, HTTP, HLS playlists, DASH MPDs, segments, RTSP, RTP, SIP, DSCP/QoS, retransmissions and captures. Review time windows for slow startup, buffering, bitrate drops, MOS decline and PESQ/POLQA anomalies.
Export PCAPs of stalls, black screens, slow startup, CDN origin faults, IPTV multicast issues, audio gaps or video corruption. Replay with configured rates, address/port rewrites and multiplication. Use separate hardware for simultaneous generation. Recheck packet processing after policy/version changes and validate playback/calls with real endpoints.
Product Stack
Core Emulation Equipment
Optional Supporting Tools
NetAccura Traffic Generation
Generate L2-L3 test streams. Software models also replay Ethernet PCAPs, rewrite IPv4 addresses and TCP/UDP ports, and multiply traffic for performance, security detection and issue reproduction. Stop all transmit tasks before switching modes. Simultaneous generation and replay require separate devices.
BestPerf
Actively measure RTT, directional loss, jitter, micro-outages, TCP goodput and quality under load to establish link baselines.
Flow Hunter
Capture passively through mirrored ports or TAPs for L2-L7 analysis, session investigation, protocol-stage diagnosis and PCAP export.
Result
Correlate startup, buffering, bitrate changes, VMAF, MOS, PESQ, POLQA, delay, jitter and loss with impairments, session stages, CDN paths, QoS and PCAP evidence.
Test live events, IPTV/OTT, CDN nodes, voice gateways and enterprise voice against mobile, Wi-Fi, broadband, regional and concurrent loads to find buffering, origin, QoS and capacity issues early.
Add Flow Hunter PCAPs and time windows to a Traffic Generation replay library so developers, operations teams, CDN providers, carriers and vendors can reproduce and validate the same scenario.
Deliver more than throughput or delay figures: include topology, parameters, timelines, quality curves, key sessions, anomalies, PCAP extracts and retest results. Development, testing, operations, vendors and customers can discuss the same evidence rather than relying on screenshots, verbal descriptions and repeated debate.
References
RFC 8216 specifies HLS file formats and client/server behavior for continuous multimedia delivery, providing protocol context for live and on-demand testing.
ISO/IEC 23009-1 defines MPEG-DASH MPD and segment formats for adaptive HTTP media delivery over the internet.
ITU-T P.1203 assesses progressive-download and adaptive audiovisual streaming quality, providing a reference for video QoE metrics.
RTSP 2.0 sets up and controls real-time media delivery, including live sources and stored content.
RTP provides end-to-end transport for real-time audio and video. RTCP provides quality feedback, synchronization and transmission monitoring.
SIP is an application-layer control protocol for creating, modifying and terminating multimedia sessions, commonly used in IMS/VoLTE/VoNR signaling.
Next Step
NetAccura can create a test topology, parameter table and POC plan based on your links, models, application protocols, available PCAPs and SLA goals.