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They offer realistic user simulation, too, which is a big benefit. There are several advantages associated with headless browsers, including the fact that they run quickly without requiring a heavy GUI. Headless browsers are usually built from WebKit, which is the engine driving both Chrome and Safari. Initial headless browsers included HtmlUnit, SlimerJS, and PhantomJS. Headless browser-based load simulation was designed in response to the increase in Web 2.0 technologies.Overall, HTTP/S tests aren’t as useful anymore, because they can’t cope with complex use cases at the protocol level. This type of test ignores the client-side scripts associated with modern Web 2.0 applications.

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HTTP/S-based tests, which were popular earlier on in the digital age, involve the test driver executing service requests and parsing responses.

There are three main types of load simulation: HTTP/S-based, real browser-based, and headless. A stress test tool can also be used to identify issues like slow-loading or unresponsive web pages.

When combined with a network traffic generator, it can give you insight into how a network will cope with varying levels of stress and load.

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The purpose of a simulator stress test tool is to test the performance of a network. There are some similarities between traffic generators and simulator stress test tools.

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A traffic generator might be used in a similar way to a bandwidth test utility and can also be used to create packets routed to the packet generator. Traffic generators send RAW packets through certain ports and collect the following data: jitter and latency values, lost packets, TX/RX rates, and out-of-order packets. Certain traffic generators may also need to respond to traffic from other devices-for example, when they need to establish an Address Resolution Protocol (ARP) in an IP network or a TCP connection.īasically, a traffic generator is a tool designed for evaluating the performance of devices under test or systems under test. When implemented, a traffic generator attaches to the network via the same interface as other devices to establish brand-new packets. This means it will have a physical, typically higher-level address. Traffic generators are a way of injecting traffic into a network for utilization by other devices.Ī traffic generator is meant to look like a device on a network, so it can target devices in receipt of traffic. A feature-heavy, intelligently designed, and super user-friendly tool, WAN Killer is part of SolarWinds Engineer’s Toolset (ETS), a suite of utilities working together to provide everything a network administrator should need.īefore going into my picks for the best generator software, I’ll briefly outline how traffic generators and stress test tools work. In this guide, I’ve ranked my favorite network traffic generator tools, with SolarWinds ® WAN Killer Network Traffic Generator squarely at the top. By implementing a network saturation or stress test, you can quickly identify any weaknesses so you can protect your daily activities from failure or downtime. If links can’t take the load, then these systems can stop functioning entirely, making day-to-day business extremely delicate. While this is important for every business, it’s especially fundamental to businesses with numerous branches needing to maintain constant communication via the wide area network (WAN). By doing so, they give you a clear understanding of what your network can cope with, where the areas of concern are, and at what point the network becomes congested.

These tools simulate stress or load to establish how much the network can handle. With a network traffic generator tool or network traffic simulator, you’re able to mimic actual network traffic. If they fail to get what they want from you quickly, they’re likely to seek out another organization to meet their needs more effectively. In this thriving digital age, end users have information and services at their fingertips, with rapid access. A customer isn’t likely to stick around if they experience a significant lag on their end, or if a page is unresponsive. As we know, network traffic is critical to the success of a business, as it determines how data flows and how effectively your applications interact.įor end users online today, speed and efficiency are everything. This includes stress testing and generating traffic on existing networks, both of which help you to identify any potentially flawed or vulnerable areas-for example, drops in connection and packet loss. Benchmarking the environment of a new network is a crucial part of ensuring its success when it goes live.