Journal ArticleDOI
Random early detection gateways for congestion avoidance
Sally Floyd,Van Jacobson +1 more
TLDR
Red gateways are designed to accompany a transport-layer congestion control protocol such as TCP and have no bias against bursty traffic and avoids the global synchronization of many connections decreasing their window at the same time.Abstract:
The authors present random early detection (RED) gateways for congestion avoidance in packet-switched networks. The gateway detects incipient congestion by computing the average queue size. The gateway could notify connections of congestion either by dropping packets arriving at the gateway or by setting a bit in packet headers. When the average queue size exceeds a present threshold, the gateway drops or marks each arriving packet with a certain probability, where the exact probability is a function of the average queue size. RED gateways keep the average queue size low while allowing occasional bursts of packets in the queue. During congestion, the probability that the gateway notifies a particular connection to reduce its window is roughly proportional to that connection's share of the bandwidth through the gateway. RED gateways are designed to accompany a transport-layer congestion control protocol such as TCP. The RED gateway has no bias against bursty traffic and avoids the global synchronization of many connections decreasing their window at the same time. Simulations of a TCP/IP network are used to illustrate the performance of RED gateways. >read more
Citations
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References
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Journal ArticleDOI
Eliminating periodic packet losses in the 4.3-Tahoe BSD TCP congestion control algorithm
Zheng Wang,Jon Crowcroft +1 more
TL;DR: Simulation results show that modifications can eliminate the periodic packet losses and substantially reduce the traffic oscillation in a new congestion signal scheme and dual traffic adjustment strategy.
Dissertation
Analysis of Random Drop for Gateway Congestion Control
TL;DR: Network simulation was used to illustrate the character of Internet congestion and its causes and a modification of Random Drop to do congestion avoidance by applying the policy early was proposed, which has the advantage of avoiding the high drop rate of buffer overflow.
Journal ArticleDOI
Table erratum: A table of series and products [Prentice-Hall, Englewood Cliffs, N.J., 1975] by E. R. Hansen
H. van Haeringen,Lp Kok +1 more
Myths about Congestion Management in High Speed Networks
TL;DR: The circumstances under which backpressure is useful or not are discussed, and it is argued that a single congestion scheme is not sufficient, but that a combination of several schemes is required for complete congestion management in a network.
Posted Content
Myths about Congestion Management in High Speed Networks
TL;DR: In this paper, weaknesses in several recently proposed congestion control and avoidance in high-speed netwroks are identified, and it is argued that a single congestion scheme is not sufficient, but that a combination of several schemes is required for complete congestion management in a network.