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| 1 | PTCP Incast in Data Center Networks显示文摘In recent years,dual-homed topologies have appeared in data centers in order to offer higher aggregate bandwidth by using multiple paths simultaneously.Multipath TCP(MPTCP) has been proposed as a replacement for TCP in those topologies as it can efficiently offer improved throughput and better fairness.However,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 servers.In this paper,we investigate why the goodput collapses even if MPTCP is able to actively relieve hot spots.In 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 upgrade.In 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 servers.The goal is to mitigate incast collapse by allowing multiple MPTCP subflows to compete fairly with a single-TCP flow at the shared bottleneck.The simulation results show that our solution mitigates the incast problem and noticeably improves goodput in data centers. | LI Ming Andrey Lukyanenko Sasu Tarkoma Antti Yla-Jaaiski | 2014 | China Communications2014，11，4： | 6 |
| 2 | Optimizing content-based routers: posets and forests显示文摘 | Sasu Tarkoma Jaakko Kangasharju | 2006 | Distributed Computing2006，，1： | 1 |
| 3 | Publish/ Subscribe for Internet: PSIRP Perspective显示文摘 | LAGUTIN D VISALA K TARKOMA S | 2010 | Future Internet Assembly2010，84，： | 1 |
| 4 | Syxaw: Data Synchroni- zation Middleware for the Mobile Web 显示文摘 | Lindholm T Kangasharju J Tarkoma S | 2009 | Mobile Networks and Applications2009，14，5： | 1 |
| 5 | Facilitating Agent Messaging on PDAs显示文摘 | Tarkoma Sasu Laukkanen Mikko | 2002 | Computer Science2002，2521，： | 1 |
| 6 | Toward efficient filter privacy-a- ware content-based pub/sub systems 显示文摘 | Rao W Chen L Tarkoma S | 2013 | IEEE Transactions on Knowledge and Data Engineering2013，25，11： | 1 |
| 7 | Facilitating agent messaging on PDAs显示文摘 | Tarkoma S Laukkanen M | 2002 | Computer Science2002，2521，： | 1 |
| 8 | Tolerating path heterogeneity in multipath TCP with bounded receive buffers显示文摘 | LI M LUKYANENKO A TARKOMA S | 2014 | Computer Networks2014，64，0： | 1 |
| 9 | XML Security with Binary XML for Mobile Web Services显示文摘 | Jaakko Kangasharju Tancred Lindholm Sasu Tarkoma | 2008 | International Journal of Web Services Research2008，，3： | 1 |
| 10 | Theory and practice of bloom filters for distributed sys- tems显示文摘 | TARKOMA S ROTHENBERG C LAGERSPETZ E | 2012 | IEEE Communications Surveys & Tutorials2012，14，1： | 1 |
| 11 | Windowing Bit-Torrent for Video-on-Demand:Not All is Lost with Tit-for-Tat显示文摘 | Petri Savolainen Niklas Raatikainen Sasu Tarkoma | 2008 | IEEE GLOBECOM2008，，： | 1 |
| 12 | Theory and practice of Bloom filters for distributed systems显示文摘 | TARKOMA S ROTHENBERG C E LAGERSPETZ E | 2012 | IEEE Communica- tions Surveys & Tutorials2012，14，1： | 1 |
| 13 | Publish/Subscribe for Internet:PSIRP Perspective显示文摘 | LAGUTIN D VISALA K TARKOMA S | | 0，，04： | 1 |
| 14 | Toward efficient filter privacy-aware content-based pub/sub systems显示文摘 | RAO W CHEN L TARKOMA S | 2013 | IEEE Transactions on Knowledge and Data Engineering2013，25，11： | 1 |
| 15 | Real-Time Upstream Services Demonstration in Orthogonal Frequency Division Multiplexing- Passive Optical Network System显示文摘In recent years,dual-homed topologies have appeared in data centers in order to offer higher aggregate bandwidth by using multiple paths simultaneously.Multipath TCP(MPTCP) has been proposed as a replacement for TCP in those topologies as it can efficiently offer improved throughput and better fairness.However,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 servers.In this paper,we investigate why the goodput collapses even if MPTCP is able to actively relieve hot spots.In 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 upgrade.In 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 servers.The goal is to mitigate incast collapse by allowing multiple MPTCP subflows to compete fairly with a single-TCP flow at the shared bottleneck.The simulation results show that our solution mitigates the incast problem and noticeably improves goodput in data centers. | LI Ming Andrey Lukyanenko Sasu Tarkoma Antti Yl-Jski | 2014 | China Communications2014，11，1： | 0 |
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