Dynamics of Congestion Control and Avoidance of Two-Way Traffic in an OSI Testbed. (1991)
| Venue: | ACM Computer Communication Review |
| Citations: | 16 - 4 self |
BibTeX
@ARTICLE{Wilder91dynamicsof,
author = {Rick Wilder and K.K. Ramakrishnan and Allison Mankin and The Mitre Corporation and The Mitre Corporation},
title = {Dynamics of Congestion Control and Avoidance of Two-Way Traffic in an OSI Testbed.},
journal = {ACM Computer Communication Review},
year = {1991},
volume = {21},
pages = {43--58}
}
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Abstract
An extensive set of measurements were made in an OSI testbed to study the behavior of congestion control and avoidance. Testbed systems used the Connectionless Network Protocol (CLNP) and Transport Protocol Class 4 (TP4), which had been modified to perform the CE-bit [10] congestion avoidance and the "CUTE" [6] congestion recovery algorithms. We found that two-way traffic has dynamics which can significantly decrease fairness among competing connections using congestion avoidance. We present experiments that demonstrate this problem and our analysis of how twoway traffic results in reduced fairness. This analysis led us to develop an effective modification to the congestion avoidance algorithms to maintain fairness with two-way traffic. Our analysis of experimental results also points to undesirable interactions between two-way traffic dynamics and a sending strategy that times data transmissions by the receipt of acknowledgements. These interactions reinforce burstiness of transmiss...
