Tsung is a distributed load testing tool. It is protocol-independent and can currently be used to stress HTTP, WebDAV, PostgreSQL, MySQL, LDAP, AMQP, and XMPP/Jabber servers. It simulates user behavior using an XML description file, reports many measurements in real time (statistics can be customized with transactions, and graphics generated using gnuplot). For HTTP, it supports 1.0 and 1.1, has a proxy mode to record sessions, supports GET, POST, PUT, and DELETE methods, cookies, and basic/digest authentication. It also has support for SSL, WebSocket, and BOSH.
LANforge is a unified multi-protocol network traffic generation and WAN emulation application. It allows users to generate real world customer traffic in a controllable manner. The WAN emulator allows the injection of latency and other network oddities like dropped, duplicated, and re-ordered packets. LANforge includes a drag-and-drop virtual network builder that supports virtual routers, WAN links, traffic-generating nodes, and more. It provides a scriptable command line interface with Perl libraries as well as a graphical user interface.
PushToTest TestMaker is a distributed test automation platform for application performance management and monitoring. It repurposes tests written in Selenium, soapUI, TestGen4Web, and Mozmill, and unit tests in Java, .NET, Jython, Groovy, PHP, Ruby, and Perl into functional tests, load and performance tests, and business service monitors. TestMaker is ideal for Web applications, Service Oriented Architecture (SOA) applications, Rich Internet Application (RIA using Ajax, Flex, Flash) and Business Process Management (BPM) applications.
FunkLoad is a functional and load Web tester whose main use cases are functional testing of Web projects (and thus regression testing as well), performance testing, load testing (such as volume testing or longevity testing), and stress testing. It can also be used to write Web agents to script any Web repetitive task.
Scapy is a powerful interactive packet manipulation tool, packet generator, network scanner, network discovery tool, and packet sniffer. It provides classes to interactively create packets or sets of packets, manipulate them, send them over the wire, sniff other packets from the wire, match answers and replies, and more. Interaction is provided by the Python interpreter, so Python programming structures can be used (such as variables, loops, and functions). Report modules are possible and easy to make. It is intended to do about the same things as ttlscan, nmap, hping, queso, p0f, xprobe, arping, arp-sk, arpspoof, firewalk, irpas, tethereal, tcpdump, etc.
PyNetSim targets the generation of background traffic and anomaly generation for testing anomaly detection algorithms. It is written basically without simulation in terms of computer science, but it uses parts of simulation theory. Therefore, it is a generator of such traffic types. It deploys its full power when running on many virtual machines.
Seagull is a multi-protocol traffic generator test tool. Primarily aimed at IMS protocols, it is a powerful traffic generator for functional, load, endurance, stress, and performance tests for almost any kind of protocol. It currently supports Diameter, SIP, HTTP, XCAP, H.248 (ASCII) over UDP/TCP/SCTP/TLS, and TCAP over SS7 or SIGTRAN.