Journal ArticleDOI
Random early detection gateways for congestion avoidance
Sally Floyd,Van Jacobson +1 more
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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
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Journal ArticleDOI
Optimization flow control—I: basic algorithm and convergence
Steven H. Low,David Lapsley +1 more
TL;DR: An optimization approach to flow control where the objective is to maximize the aggregate source utility over their transmission rates to solve the dual problem using a gradient projection algorithm.
Journal ArticleDOI
Promoting the use of end-to-end congestion control in the Internet
Sally Floyd,Kevin Fall +1 more
TL;DR: It is argued that router mechanisms are needed to identify and restrict the bandwidth of selected high-bandwidth best-effort flows in times of congestion, and several general approaches are discussed for identifying those flows suitable for bandwidth regulation.
Proceedings ArticleDOI
Data center TCP (DCTCP)
Mohammad Alizadeh,Albert Greenberg,David A. Maltz,Jitendra Padhye,Parveen Patel,Balaji Prabhakar,Sudipta Sengupta,Murari Sridharan +7 more
TL;DR: DCTCP enables the applications to handle 10X the current background traffic, without impacting foreground traffic, thus largely eliminating incast problems, and delivers the same or better throughput than TCP, while using 90% less buffer space.
Proceedings ArticleDOI
The Click modular router
TL;DR: The Click IP router can forward 64-byte packets at 73,000 packets per second, just 10% slower than Linux alone, and is easy to extend by adding additional elements, which are demonstrated with augmented configurations.
Journal ArticleDOI
The macroscopic behavior of the TCP congestion avoidance algorithm
TL;DR: A performance model for the TCP Congestion Avoidance algorithm that predicts the bandwidth of a sustained TCP connection subjected to light to moderate packet losses, such as loss caused by network congestion is analyzed.
References
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