Overlays have enabled several new and popular distributed applications such as Akamai, Kazaa, and Bittorrent. However, the lack of an overlay-aware network stack has hindered the widespread use of general purpose overlay packet delivery services. In this paper, we describe the design and implementation of Oasis, a system and toolkit that enables legacy operating systems to access overlay-based packet delivery services. Oasis combines a set of ideas - network address translation, name resolution, packet capture, dynamic code execution - to provide greater user choice. We are in the process of making the Oasis toolkit available for public use, specifically, to ease the development of PlanetLab-based packet delivery services.
展开▼
