Solution Detail
Multiple Underlays, Application Recognition, Dynamic Routing, QoS and Failover
Reproduce realistic MPLS, broadband, LTE/5G, satellite and cloud impairments for SD-WAN development, selection and pre-deployment testing. Validate application recognition, routing, QoS, failover, tunnels and SLA performance.
Core Emulation Equipment
Products
4
Scenarios
10
Evidence
PCAP
Why
SD-WAN places applications on appropriate underlays according to policy, quality and security—not merely aggregated links. MPLS often carries critical traffic; broadband and LTE/5G add capacity, internet access or backup; satellite and cloud paths introduce delay and variability. Tunnel establishment alone cannot establish reliable routing, QoS, failover or experience.
MEF 70.2 defines externally visible SD-WAN service behavior through attributes and a framework. Test SD-WAN edges, controllers, CPE, Underlay Connectivity Services, Tunnel Virtual Connections, applications, policies and quality goals together, rather than single-link throughput alone.
Use for vendor R&D, enterprise bakeoffs, managed SD-WAN delivery, branch rollout, SASE/security integration and cloud-edge optimization. Turn claims about intelligent routing, application assurance, failover, economical links and secure access into repeatable, measurable evidence.
Topology
How
Model headquarters, branches, data centers, cloud entries and internet exits. Place SD-WAN gateways/CPE at the user side and ChaosBridge in each MPLS, broadband, LTE/5G, satellite or cloud path. Configure bandwidth, RTT, jitter, loss, reordering, bursts and outages independently as repeatable WAN profiles.
Configure background packets with different rates, sizes, addresses, ports and DSCP markings to inspect multi-stream forwarding and QoS. Real clients/servers run conferencing, VoIP, web and transfers; existing PCAP samples can assist recognition validation.
Move between normal, congested, lossy and delayed links. Check critical traffic uses MPLS or healthier paths, lower-priority traffic uses broadband/backup links, and markings, queues and bandwidth guarantees work. BestPerf records SLA/goodput; Flow Hunter observes recognition, tunnels, QoS and protocol stages.
Create failures, intermittent links, bandwidth drops, RTT spikes and burst loss. Measure detection, failover, interruption duration, loss, session persistence and recovery paths. Check LTE/5G or satellite backups still meet minimum SLA requirements after switching.
Replay and multiply production PCAPs, branch complaints, tunnel anomalies or policy samples. Run different SD-WAN products and policy versions with the same profiles, applications and samples. Report paths, SLA, QoS, failover, sessions and PCAP evidence for bakeoffs and deployment decisions.
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
Compare vendors, models and policies under identical MPLS/broadband/LTE/5G profiles and application mixes, reducing reliance on demonstrations and datasheets.
Expose recognition errors, policy conflicts, ineffective QoS, slow switching, inadequate backup SLA and congestion affecting critical services before users encounter them.
Report failover and interruption times, loss, recovery paths, session state and PCAP evidence for acceptance, remediation and vendor collaboration.
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
MEF 70.2 defines externally observable SD-WAN behavior, service attributes, key concepts and the service framework, providing terminology and behavioral modeling references for testing.
Explains the relationship between end-to-end TCP throughput, RTT, bottleneck bandwidth, buffering and user experience.
For validating throughput, loss, forwarding, frame-size combinations, filtering and behavior under abnormal conditions.
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.