Solution Detail
Pre-Migration Baselines, Cloud-Path Impairments, Pre-Cutover Loads and Post-Migration Comparison
Turn data center migration, hybrid/multicloud access, object storage moves, database synchronization and application cutover into a rehearsable, testable and observable engineering process.
Core Emulation Equipment
Products
4
Scenarios
14
Evidence
PCAP
Why
Migration changes access and synchronization paths, DNS, identity, database connections, storage, backups, disaster recovery and user entry points. Formerly local traffic may traverse dedicated circuits, VPN, SD-WAN, the internet, regional backbones or VPC/VNet boundaries. Bandwidth, delay, jitter, loss and detours affect cutover windows and performance.
Bulk transfers, object storage, replication and regional synchronization are network-sensitive. Limited bandwidth lengthens migration; delay reduces TCP goodput; loss and micro-outages cause retries, failures and timeouts. Problems may emerge only when migration scale, user concurrency and actual cloud paths combine, threatening windows, rollback and experience.
Establish a baseline, reproduce target cloud paths in the lab, and test migration and application access under varied conditions. Monitor during and after migration, then compare results to answer: what is the current baseline, can target paths carry the workload, and is performance maintained?
Topology
How
Deploy BestPerf across current data centers, branches, cloud entries and user sites. Record RTT, directional loss, jitter, micro-outages, TCP goodput, concurrent-load quality and time variation. Flow Hunter records current sessions, DNS/TLS/HTTP/API/database stages, retransmissions and failure windows through mirrors/TAPs.
Build target VPC/VNet, cross-region, storage, database and SaaS paths. Insert ChaosBridge to apply bandwidth limits, delay, jitter, loss, bursts, brief outages, regional differences and public-path variation often underestimated in planning.
Generate controlled multi-stream loads with configured sizes, rates, bursts, directional ratios and durations to observe circuit, VPN, SD-WAN, NAT and gateway limits. Actual applications or specialist tools run migrations, storage operations, replication and Web/API traffic.
Import Ethernet PCAPs into NetAccura Traffic Generation and replay on target paths with impairment profiles, optional IPv4/port rewrites and multiplication. Regress forwarding, recognition and abnormal-packet handling; validate authentication, transfers and database interactions with real endpoints.
During migration or phased cutover, Flow Hunter monitors critical sessions for DNS, TLS, HTTP, database, storage and API timeouts, retries and abnormal hosts. BestPerf continues scheduled checks. Combine post-migration results, baseline, lab tests and PCAPs for acceptance, optimization and review.
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
Test bandwidth limits, delay, loss and regional paths to estimate bulk transfer, storage migration and database synchronization windows before cutover day.
Load-test Web/API, SaaS, databases, transfers, remote work and branches over target VPC/VNet, circuits, VPN, SD-WAN and internet paths. Find reduced TCP goodput, slow TLS, DNS faults, unstable persistent connections and poor regional access early.
Use one evidence set spanning baselines, lab rehearsals, live monitoring, post-migration comparisons and retrospective analysis so business, cloud, network and vendor teams optimize from shared data.
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
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.
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.
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.