数据中心网络中的MPTCP Incast（英文）

作     者：LI Ming Andrey Lukyanenko Sasu Tarkoma Antti Yl-Jski 

作者机构：Department of Computer Science and EngineeringAalto University Department of Computer ScienceUniversity of Helsinki 

出 版 物：《China Communications》 (中国通信(英文版))

年 卷 期：2014年第11卷第4期

页      面：25-37页

核心收录：

学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported in part by the HUT Distributed and Mobile Cloud Systems research project and Tekes within the ITEA2 project 10014 EASI-CLOUDS 

主　　题：TCP MPTCP incast collapse congestion control data centers 

摘      要：In recent years,dual-homed topologies have appeared in data centers in order to offer higher aggregate bandwidth by using multiple paths *** TCP(MPTCP) has been proposed as a replacement for TCP in those topologies as it can efficiently offer improved throughput and better ***,we have found that MPTCP has a problem in terms of incast collapse where the receiver suffers a drastic goodput drop when it simultaneously requests data over multiple *** this paper,we investigate why the goodput collapses even if MPTCP is able to actively relieve hot *** order to address the problem,we propose an equally-weighted congestion control algorithm for MPTCP,namely EW-MPTCP,without need for centralized control,additional infrastructure and a hardware *** our scheme,in addition to the coupled congestion control performed on each subflow of an MPTCP connection,we allow each subflow to perform an additional congestion control operation by weighting the congestion window in reverse proportion to the number of *** goal is to mitigate incast collapse by allowing multiple MPTCP subflows to compete fairly with a single-TCP flow at the shared *** simulation results show that our solution mitigates the incast problem and noticeably improves goodput in data centers.