Reviving delay-based TCP for data centers

CODE TCP: A competitive delay-based TCP

TCP Vegas is a well-known delay-based congestion control mechanism. Studies have indicated that TCP Vegas outperforms TCP Reno in many aspects. However, Reno currently remains the most widely deployed TCP variant in the Internet. This is mainly because of the incompatibility of Vegas with Reno. The performance of Vegas is generally mediocre in environments where it coexists with Reno. Hence, th...

VFAST TCP: A delay-based enhanced version of FAST TCP

This paper is aimed at describing a delay-based endto-end (e2e) congestion control algorithm, called Very FAST TCP (VFAST), which is an enhanced version of FAST TCP. The main idea behind this enhancement is to smoothly estimate the Round-Trip Time (RTT) based on a nonlinear filter, which eliminates throughput and queue oscillation when RTT fluctuates. In this context, an evaluation of the sugge...

TCP with sender-based delay control

This paper describes a congestion control method for TCP that adjusts the transmission rate of a TCP connection by changing not only the congestion window size as in normal TCP, but also by delaying the transmission of packets at the sender. We refer to this method as TCP with sender-based delay control, or simply SDC. SDC can keep the window size of a TCP connection above a certain threshold e...

exploring delay - based tcp congestion control

Active delay control for TCP

Active Delay Control is a novel extension for TCP, where TCP endpoints impose delays on the transmission of packets to improve performance. The amount of delay can be calculated by routers from the level of congestions, or by endpoints from the received congestion signals. In particular, when there are many TCP flows competing for the bandwidth of a link, they can reduce their transmission rate...