Dummynet: A Simple Approach to the Evaluation of Network Protocols (1997)
| Venue: | ACM Computer Communication Review |
| Citations: | 351 - 6 self |
BibTeX
@ARTICLE{Rizzo97dummynet:a,
author = {Luigi Rizzo},
title = {Dummynet: A Simple Approach to the Evaluation of Network Protocols},
journal = {ACM Computer Communication Review},
year = {1997},
volume = {27},
pages = {31--41}
}
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Abstract
Network protocols are usually tested in operational networks or in simulated environments. With the former approach it is not easy to set and control the various operational parameters such as bandwidth, delays, queue sizes. Simulators are easier to control, but they are often only an approximate model of the desired setting, especially for what regards the various traffic generators (both producers and consumers) and their interaction with the protocol itself. In this paper we show how a simple, yet flexible and accurate network simulator -- dummynet -- can be built with minimal modifications to an existing protocol stack, allowing experiments to be run on a standalone system. dummynet works by intercepting communications of the protocol layer under test and simulating the effects of finite queues, bandwidth limitations and communication delays. It runs in a fully operational system, hence allowing the use of real traffic generators and protocol implementations, while solving the prob...
