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A traffic generator built on the bench it runs on

Stateful L4-7 traffic from an application-mix library, line-rate L2-3 streams, live counters and captures in the browser. Built by the TEST4NET lab for its own customer runs, checked next to commercial units in every session, priced per gigabit. In beta this autumn: book a demo on CloudLAB or join the beta list.

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One run in the browser Profile in, device under load, counters back
App-mix library web, video, VoIP, enterprise apps Traffic generator L4-7 and L2-3 streams Your device firewall or router Live counters four live counters throughputCPSlatencyloss Capture · at the measurement points 14:02:11.482 10.1.0.7:51320 → 10.2.0.10:443 TLS 1.3 ClientHello len 517
  • L4-7stateful HTTP, HTTPS, TLS, app mix
  • L2-3line-rate streams, RFC 2544 cases
  • Per gigabitlicence model, no port tax
  • Weeksbetween updates, release notes with each

What it does

Three jobs, one window

The generator is built around the cases the bench runs every week: throughput and sessions on a firewall, convergence on a router pair, an application mix on a load balancer

  1. 1

    Stateful L4-7 load

    HTTP, HTTPS, TLS

    Connections per second, concurrent sessions, throughput with the device features on. TLS handshakes in the mix, at the rates the profile sets

    RFC 9411 style cases

  2. 2

    Application mix

    library

    Web, video, VoIP, file transfer and enterprise applications as weighted flows. Build a profile from your own traffic statistics or take one from the library and adjust the weights

    Profile saved with the report

  3. 3

    L2-3 streams

    line rate

    Frame sizes, VLANs, IMIX, loss and latency per stream for RFC 2544 and RFC 2889 cases on switches and routers; convergence timing with a route withdrawal

    Same counters as the L4-7 run

How it differs

Where it beats what is on the market, and where it does not yet

The two references are the open-source generators engineers already run and the commercial testers in our rack. The columns say what the beta does today; the release notes say what changes.

CriterionOpen-source generatorsCommercial testersTEST4NET generator
01Price per gigabit free software, your hardware and your hours licence per port and per feature per gigabit, features included
02Speed of changes when the community gets to it yearly releases every few weeks, driven by bench runs
03Availability build it yourself lead time and budget approval on CloudLAB today, licence after the demo
04Functionality stateless and basic stateful the widest, including protocol emulation stateful L4-7, app mix, L2-3 streams; protocol emulation on the roadmap
05Content library pcap replay vendor catalogue profiles from real bench runs, extended on request
06Updates irregular with the support contract included, with release notes

Commercial units stay on the bench for the cases they do best; the report names the instrument behind every number

Status

Beta this autumn, shown at DigiTec 2026

The build runs customer sessions on CloudLAB with a commercial tester next to it. Known gaps are in the release notes; what matches the reference is marked as such.

Beta
customer runs on the bench since autumn 2026
Side by side
checked against a commercial unit in every run
Nov 2026
public demo at DigiTec, Yerevan

A licence for your own lab follows the beta. The price is quoted per gigabit with the plan.

In the beta build
Stateful HTTP and HTTPS CPS, concurrent sessions, throughput included TLS handshakes in the profile mix included Application-mix profiles library and your own weights included L2-3 streams RFC 2544 and 2889 cases included Counters and captures live in the browser, exported with the report included

How to get it

Demo on the bench, then a seat, then a licence

The sequence is the same for every customer and every build

  1. 1

    Demo

    one session

    Your device in the rack or ours, a profile close to your traffic, a commercial unit next to the generator. You see both columns live

    Report with both instruments

  2. 2

    Beta seat

    autumn 2026

    Early builds every few weeks, release notes, direct chat with the developers, your cases first in the queue

    Within your bench plan on CloudLAB

  3. 3

    Licence

    after the beta

    The generator in your own lab, priced per gigabit, updates included. The profiles and suites from the bench come with it

    Quoted with the plan

FAQ

Questions about the generator

All products WANemu How CloudLAB works Load and performance testing

What hardware does it need?

On CloudLAB, none on your side. For your own lab the requirements come with the demo report: server class, network cards and the rates each gives.

Does it replace the commercial testers on the bench?

No. It covers the common L4-7 and L2-3 cases at a lower price per gigabit; commercial units stay for protocol emulation and the cases where they are the reference. The report names the instrument behind every number.

Can we bring our own traffic profile?

Yes. Flow statistics or a capture from your network become a weighted profile; the data itself never leaves your side. The profile is saved with the report and reused on the next release.

How are results validated?

Every beta run goes next to a commercial unit on the same device. Counters that match the reference are marked as validated in the release notes; the rest is listed as a known gap.

What does a beta seat cost?

On CloudLAB it comes within the bench plan you book. A licence for your own lab is priced per gigabit after the beta.

See the generator on your device

A demo session on CloudLAB with a commercial unit next to it. Device, profile and dates in the form.

Book a demo All products

Demo and beta access

See the tool on your own traffic profile

Tell us which product you want to see and what you plan to run through it. An engineer replies within one business day with a slot or an invitation.

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