CRI: CRD: Synthetic Traffic Generation Tools and Resources: A Community Resource for Experimental Networking Research, Michele C. Weigle, NSF - CNS 0709058, 2007-2011, $201,794.
In order to perform realistic network simulations, one needs a traffic generator that is capable of generating realistic synthetic traffic in a closed-loop fashion that "looks like" traffic found on an actual network. Unfortunately, the networking community suffers from a lack of validated tools and models suitable for synthetic traffic generation. As a result, all too often, networking technology is evaluated using ad hoc workloads with an unknown relationship to traffic seen on real links and hence begs the question of how believable the results of the evaluation are.
This project is a collaborative effort to develop a synthetic traffic generation resource for the experimental networking research community. The resource consists of
We take connection vectors and generate TCP connections starting at the specified time and sending the specified amount of data. Each connection has an initiator (the node that starts the connection) and an acceptor (the node that accepts the connection). These are generally on opposite sides of the network from each other. The typical topology for Tmix in ns is shown below: