Abstract
As network technologies have been infiltrated into our daily life, reliability of networks and technologies which compose them is important. In order to guarantee them to be safe, various network experiments are performed and researchers discuss these methodologies to improve them. We have developed and managed StarBED; large-scale general purpose network testbed which enables to verify actual hardware and software implementations for real environments such as the Internet. In this paper, we describe characteristics and components of network experiments and supported areas by existing network testbeds. Finally, we discuss the future of network testbed researches.
