Software latency generator

This great ManageEngine utility is actually a Ping and Traceroute tool. The free package also includes a DNS Lookup feature and a specialist measure of response times for websites. The Ping section of this tool shows each of the given hosts and the Ping data for each, including the round trip time.

One problem with the tool is that you have to enter each address individually rather than by entering an address range. However, once you have those entered on the screen, they will stay there even when you have to stop the monitor to switch to other utilities. The Ping results can also be shown on a time series line graph. The Traceroute utility shows you the round trip time on each hop of a route to a given destination and shows a bar alongside.

This makes that RTT easy to understand, highlighting the hops that took the longest to cross. The Web Response tab gives you a nice graph of the response time to the Web server for a given website address. This graph will continue to update and it shows you the RTT broken down between TCP session establishment, redirection time, and web page response time.

This is a great little tool and you can also get reports printed from it in PDF format , which you can save or email. PingPlotter is available in three editions: Free, Standard, and Professional. The free version is actually a day free trial of the Professional edition.

All versions of the tool implement Ping and Traceroute , giving results of both tests in graphical format. The console for the tool has a tabbed display panel, much like a Web browser. For each target, you start a new tab, which shows a list of the hops between your computer and the destination.

Tests keep running live and accumulated results for the latency on each hop is shown in three data columns. These show the average, minimum, and current round-trip times for that hop. A visualization column at the end of each row plots the minimum, maximum , and average RTT on a line. A vertical line graph runs along all of the records in the display which plots the current RTT for all hops. A lower panel in the main screen shows both the latency and jitter for the current connection over time.

A summary tab shows you latency results for all currently open network connections in the test system. The free version only stores the history for 10 minutes, but the two paid versions show data transmission over an unlimited time frame. Related post: Best PingPlotter Alternatives. NirSoft NetworkLatencyView. The NetworkLatencyView tool from NirSoft is a little different than all of the other latency testers on this list.

Rather than examining links to a given destination, the utility listens for all new TCP connections and monitors while they persist. The reports of the tool are based on Ping , so you will get the same latency feedback that the other tools will give you. This is a free tool and it installs on Windows. The display window can show up to 10 Ping test RTT values for each detected network connection.

It also shows the average of those ten tests. This makes the display area very wide. However, you can resize columns, stretch the window, or scroll to the right to see all of the data. The straightforward layout of the interface makes this a useful tool for busy system administrators. It is also possible to enter a non-consecutive list of IP addresses by loading them into the interface from a file. The tool will ping every address within the given range and show each in the output.

This can result in a lot of unused addresses appearing on the screen. You can avoid this large number of irrelevant records by setting in the Preferences section of the tool that only live IP addresses should be shown. This requirement can be refined further by an option that limits the output list to show just those hosts that have open ports. Although the utility will ping many hosts in one run, it will only run each Ping probe on demand.

The service does not repeat continuously. If you want to refresh the report, you will need to push the Start button again. The default output only shows the average RTT for each discovered IP address along with the hostname of that destination and the number of open ports on that device.

You can customize the output screen by selecting extra data categories. These include a Packet Loss field. The number of tests issued is dictated by one of the settings in the Preferences screen. The default number of probes is three per address. Pinkie is a suite of network monitoring tools that includes a Ping sweep option.

The tool is free to use and will run on Windows. The tool also includes a straightforward Ping option, which will probe just one destination IP address, which can also be entered as a URL.

The Ping Sweep option will test a range of addresses. However, the test is not continuous and you have to relaunch the utility by pressing a Start Ping Sweep button to get the results refreshed. A checkbox in the search section of the screen enables you to exclude IP addresses that are not live.

The Ping Sweep output can be copied to the clipboard and then pasted into a text file. Other utilities in Pinkie are a port scanner , a Traceroute implementation, a DNS lookup function, and a bulk DNS reference facility, which uses a list of addresses from a file. There is also a subnet calculator and a TFTP server in the bundle. This is a very useful pack of tools that help you keep all of the facilities you need to check on your entire network in one interface.

The tool is free because it is supported by advertisements. If you want to get rid of those ads, you can buy NetScan Tools Pro. You get three Ping-based utilities in both editions of NetScan Tools. The package also includes a Traceroute facility, so you have four ways to test the latency of your network.

The first of your Ping options is a straightforward graphical interpretation of the standard command. You enter a domain name, a hostname, or an IP address and the tool will send out five Ping probes to that destination. The output will show the RTT and time to live of each probe. We were able to play with various modes of operation that TRex supports and found out, to our delight, that there were many. Some combination of TRex settings did not allow for time synchronization to happen at all, as PTP packets were handled by hardware.

Still, we were able to find other combinations that worked. During the process we also found a bug in the DPDK documentation and implementation. We placed another machine between two TRex instances and were able to simulate a network appliance. Finally, we implemented our solution in Google Cloud Platform. What is great about TRex is that you can modify the source code to suit particular project needs. Our modification to TRex enabled us to work with it in the cloud and use it as a transmitter and receiver at the same time.

Thanks to the synchronization of clock times between different servers or service providers, even ones that are very distant from one another, we can perform reliable testing of cloud systems. Last but not least, our modification of TRex will allow you, too, to test your network performance in cloud environments and check the validity of new ideas without incurring serious costs.

Testing Test design and execution PoC realization Test automation. Cloud Telco cloud Hybrid cloud. Automation Network orchestration Day2 operations. Testing tool for network traffic To test a network connection, a significant amount of traffic must be created, transmitted through the System Under Test SUT and analyzed on the other end. A viable solution—TRex We chose TRex , a traffic generator originally developed at Cisco and published as an open-source project a few years ago.

Problem with measuring latency TRex is definitely one of the best on-premises usually labs traffic generators. Fig 3. Linear scenario with different clock sources on all machines Aiming at more precise clocks Currently, there is a state-of-the-art solution delivering sub-microsecond precision. Into the battle with our modifications We started testing our modifications in a Docker-based environment.

Business benefits of a customized network traffic generator What is great about TRex is that you can modify the source code to suit particular project needs. Read also 15 minutes. It can also be used as a simple ping utility to identify active hosts. Trex is a traffic generator tool fueled by DPDK. It is an open source software that works well in both stateful and stateless modes. Download a fully functional version for a trial period of 30 days from here.

You can download a trial version here. Set any packet size and circuit bandwidth percent to load random data on your WAN. Pricing 30 Day Free Trial Download below! Download Down a Fully Functional free trial below! Features The features of Ostinato are: Ideal for load and functional testing. You can stack protocols in any order to test error cases. Many controllers can share an agent, and one agent can have many controllers. Another comprehensive monitoring application, Paessler PRTG Network Monitor is a good option for medium or large businesses with a substantial number of servers, switches, and firewalls in need of monitoring, as it allows you to do so from a single platform.

This has the benefit of allowing you to visually assess patterns related to network performance and to consolidate your alerts in one centralized location. PRTG monitors everything on your network, from traffic, bandwidth, and uptime to disk usage, IoT devices, and cloud services. The monitoring system is proactive and extensive, offering more than simple Ping-based queries. Sensors monitor CPU usage, hard drive space, memory, and even specific processes. This allows you to track over time which servers and devices require more resources and to reallocate bandwidth for optimized performance.

PRTG also includes an autodiscovery feature, meaning it will discover new systems or changes to the network and automatically apply sensor templates, ensuring each new device is monitored for CPU, RAM, hard disk, and network capacity as soon as possible. The preset templates are streamlined, economical, and efficient. As with Network Performance Monitor, PRTG comes with a robust dashboard system to let you visualize your network performance in real time with color-coded maps.

The map designer function integrates data from all your network sensors and sorts it according to various metrics, including by device type or by traffic. Your network maps can be tailored with custom HTML, and can even be shared both within and outside of your company networks, if needed, by using unique dashboard URLs. This can occasionally cause some compatibility issues, and it prevents network administrators from writing their own SQL queries against the database.

Compiling data from these metrics can help network administrators determine the quality with which VoIP calls are being delivered. This aids in the problem-solving process and helps prevent VoIP call downtime. It also designed to be deployed in less than an hour, as the platform uses SolarWinds auto-discovery technology to identify Cisco IP SLA-enabled devices across your network. This saves you the hassle of having to manually configure each device individually.

The tool is built to provide basic VoIP and network monitoring, though it will not monitor routers, switches, or bandwidth utilization. But the program provides a lot of information in easy-to-understand dashboards, including defined paths between offices and monitoring for latency, jitter, and packet loss at each network hop. The ability to access IP SLA and call-path monitoring means you can drill down on specific operations and call paths to see if issues occurred during the call and to troubleshoot the problem more quickly.

The alerting system in VNQM offers several options you can personalize, as well. The NetScanTools Basic edition is another freeware option for home users and those managing smaller networks, giving you several powerful networking tools in a single bundle. NetScanTools Pro brings more than 40 networking tools—including configuration functions, security testing services, tools for data gathering, and network and service diagnostics—into one central interface.

NetScanTools collects a lot of data automatically and is specifically designed to save you time. A great deal of information can be gleaned from examining DNS entries, scanning hosts, and doing Whois lookups, but running those tasks individually is time-consuming.

NetScanTools creates automated reports to provide a range of detailed information, including not only Whois records and DNS details, but also blacklists, traceroutes, port scans, and more. Testing and packet tools allow you to illuminate potential problem areas on the network, as well. While not as expansive or comprehensive as some of the other applications listed here, NetScanTools is a cost-effective and affordable bundle of network management tools. Designed for use with NetFlow, this free network testing toolkit includes three handy, easy-to-install network traffic analysis tools to give you the capacity to rapidly distribute, test, and configure flow traffic.