Title

Performance Sensitivity and Fairness of ECN-Aware 'Modified TCP'

Publication Type

Journal Article

Publication Date

8-2003

Abstract

The paper discusses how Explicit Congestion Notification (ECN) can be used to devise a congestion control mechanism for the Internet, which is more rapidly reactive and allows best-effort flows to rapidly adjust to fluctuations in available capacity. Our ECN-mod protocol involves simple modifications to TCP behavior and leverages more aggressive marking-based router feedback.Simulations show that ECN-mod is better than TCP NewReno even for Web-style intermittent traffic sources, and makes the link utilization significantly less sensitive to the variation in the number of active flows. Simulations also show that, while ECN-mod flows obtain a larger portion of the available capacity than conventional best-effort traffic, they do not starve or significantly penalize such TCP-based flows.

Discipline

Software Engineering

Research Areas

Software Systems

Publication

Performance Evaluation

Volume

53

Issue

3/4

First Page

255

Last Page

272

ISSN

0166-5316

Identifier

10.1016/S0166-5316(03)00065-8

Publisher

Elsevier

Additional URL

http://dx.doi.org/10.1016/S0166-5316(03)00065-8