Future Internet Congestion Control : The Diminishing Feedback Problem

Welzl, Michael and Teymoori, Peyman and Islam, Safiqul and Hutchison, David and Gjessing, Stein (2022) Future Internet Congestion Control : The Diminishing Feedback Problem. IEEE Communications Magazine, 60 (9): 9. pp. 87-92. ISSN 0163-6804

[thumbnail of future_cc_acceptedversion]
Text (future_cc_acceptedversion)
future_cc_acceptedversion.pdf - Accepted Version
Available under License Creative Commons Attribution-NonCommercial.

Download (1MB)


It is increasingly difficult for Internet congestion control mechanisms to obtain the feedback that they need. This lack of feedback can have severe performance implications, and it is bound to become worse. In the long run, the problem may only be fixable by fundamentally changing the way congestion control is done in the Internet. We substantiate this claim by looking at the evolution of the Internet's infrastructure over the past 30 years, and by examining the most common behavior of Internet traffic. Considering the goals that congestion control mechanisms are intended to address, and taking into account contextual developments in the Internet ecosystem, we arrive at conclusions and recommendations about possible future congestion control design directions. In particular, we argue that congestion control mechanisms should move away from their strict 'end-to-end' adherence. This change would benefit from avoiding a 'one size fits all circumstances' approach, and moving toward a more selective set of mechanisms that will result in a better performing Internet. We also discuss how this future vision differs from today's use of performance enhancing proxies.

Item Type:
Journal Article
Journal or Publication Title:
IEEE Communications Magazine
Additional Information:
©2022 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
Uncontrolled Keywords:
?? computer networks and communicationscomputer science applicationselectrical and electronic engineering ??
ID Code:
Deposited By:
Deposited On:
16 Jun 2022 12:05
Last Modified:
22 Apr 2024 00:11