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Proceedings Paper

Script-driven packet marking for quality-of-service support in legacy applications
Author(s): Timothy Roscoe; Gene Bowen
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Paper Abstract

This paper describes the implementation of a system to deliver Quality of Service for IP flows using a DiffServ- like packet marking mechanism. The system uses an unmodified commodity operating system (Windows NT), and a policy daemon is employed to implement arbitrary policies for QoS via a scripting mechanism. By interposing an agent in the protocol stack used by the application runtime system, off-the-shelf applications can have different packet forwarding policies assigned to different flows they originate, without any need to recompile either the operating system or the application. The principle of the system can be naturally extended to implement more widely coordinated policy-based networking, and network reservations using protocols such as RSVP, without any need to recompile applications.

Paper Details

Date Published: 27 December 1999
PDF: 11 pages
Proc. SPIE 3969, Multimedia Computing and Networking 2000, (27 December 1999); doi: 10.1117/12.373519
Show Author Affiliations
Timothy Roscoe, Sprint Advanced Technology Labs. (United States)
Gene Bowen, Sprint Advanced Technology Labs. (United States)

Published in SPIE Proceedings Vol. 3969:
Multimedia Computing and Networking 2000
Klara Nahrstedt; Wu-chi Feng, Editor(s)

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