Experimenting Content-Centric Networks in the future internet testbed environment

摘要

Future Internet Testbed with Security (FITS) is a testbed for experimenting Next-Generation Internet proposals that provides two virtualization schemes based on Xen and on OpenFlow. Experimenting new protocol proposals for the Future Internet requires a realistic condition environment for packet forwarding. FITS nodes are spread in Brazilian and European universities. In this paper, we present FITS and we use it to test a Content Centric Network (CCN), which is one of the main proposals for the Future Internet. The experiment creates a virtual network on the testbed with CCNx stack and measure the file transfer performance under real Internet traffic conditions. The results show that CCN presents an overhead of 19% when compared with the conventional TCP/IP stack. Nevertheless, CCN outperforms TCP as the number of consumers increases and CCN download time is approximately 25% smaller than TCP on the Internet.