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We encourage researchers and network application testers/developers to consider KauNet as a testing platform. If you're interested, please contact us for detailed information on KauNet.
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KauNet - An Extention to Dummynet
KauNet is a Dummynet extention, developed at Karlstad University, providing deterministic network emulation. The original Dummynet system has the ability to lose packets packets at a certain rate, and to apply bandwidth restrictions and delays to packets thus emulating link or network conditions.
KauNet extends this functionality, by providing per-packet, or per-millisecond, control over the emulated effects using patterns. Patterns can be created using different types of input, e.g. analytical expressions, and are created by a user before the emulation is initiated. Currently, four types of patterns are supported: packet loss patterns, bit-error patterns, bandwidth change patterns, and delay change patterns. Thus, KauNet introduces deterministic support for the original KauNet features, as well as new functionality for bit-errors.
To simplify pattern creation we have developed a pattern generation tool that is able to create patterns from user input, and also to create patterns using mathematical distributions. Furthermore, the tool also let users import data from other sources and create patterns of it.
The KauNet team gratefully acknowledges the support from Internetfonden.
Please use the menu above to obtain more information on KauNet. There are a number of papers written on KauNet, or with the help of KauNet. We have also taken some neat screenshots of how KauNet applies deterministic packet losses to a ping session.
24 Feb 2009, 09:00