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Abstract

Session
Control Mechanisms
Paper
2-2
Full Paper
ps.gz
Title
Endpoint Admission Control: Architectural Issues and Performance
Author(s)
Lee Breslau (AT&T Research)
Edward Knightly (Rice University)
Scott Shenker (AT&T Center for Internet Research at ICSI)
Ion Stoica (CMU)
Hui Zhang (CMU)
Abstract:
The traditional approach to implementing admission control, as exemplified by the Integrated Services proposals in the IETF, uses a signaling protocol to establish reservations at all routers along the path. While providing excellent quality-of-service, this approach has limited scalability because it requires routers to keep per-flow state and to process per-flow reservation messages. In an attempt to implement admission control without these scalability problems, several recent papers have proposed various forms of endpoint admission control. In these designs, the hosts (the endpoints) probe the network to detect the level of congestion; the host admits the flow only if the level of congestion is sufficiently low. This paper is devoted to the study of such algorithms. We first consider several architectural issues that guide (and constrain) the design of such systems. We then use simulations to evaluate the performance of such designs in various settings.