2001/04/07 by David G. Andersen, Deepak Bansal, Dorothy Curtis +2
Computer Science · #cs.NI #cs.OS
published as Proc. OSDI 2000 · 14 pages, appeared in OSDI 2000
arxiv created 2001/04/07 · arxiv updated 2009/11/30
This paper describes the implementation and evaluation of an operating system module, the Congestion Manager (CM), which provides integrated network flow management and exports a convenient programming interface that allows applications to be notified of, and adapt to, changing network conditions. We describe the API by which applications interface with the CM, and the architectural considerations that factored into the design. To evaluate the architecture and API, we describe our implementations of TCP; a streaming layered audio/video application; and an interactive audio application using the CM, and show that they achieve adaptive behavior without incurring much end-system overhead. All flows including TCP benefit from the sharing of congestion information, and applications are able to incorporate new functionality such as congestion control and adaptive behavior.