Performance sensitivity and fairness of ECN-aware 'modified TCP'

Document Type

Conference Proceeding

Publication Date

8-1-2003

Abstract

The paper discusses how explicit congestion notification (ECN) can be used to devise an Internet congestion control mechanism that 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 for both persistent sources and 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. © 2003 Elsevier Science B.V. All rights reserved.

Identifier

0037715411 (Scopus)

Publication Title

Performance Evaluation

External Full Text Location

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

ISSN

01665316

First Page

255

Last Page

272

Issue

3-4

Volume

53

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