DCUDP: A Novel UDP for Reliable Transmission in Data Center Networks

MPhil Thesis Defence


Title: "DCUDP: A Novel UDP for Reliable Transmission in Data Center Networks"

By

Miss Lisha Ye


Abstract

Recent researchers find out that TCP fails to provide satisfying performance 
for data center networks in many cases including throughput, fairness and 
latency requirements since TCP never cares about the traffic characteristics of 
data centers. There is great need in designing practical and efficient 
protocols which can take into consideration of the data center traffic 
characteristics. As another popular transport protocol, UDP emerges as a 
cost-effective alternative to TCP in dealing with this challenging problem but 
is seldom used for reliable transmissions.

In our work, we propose DCUDP, a protocol based on UDP for data center reliable 
transmissions. DCUDP can avoid TCP’s limitations in data centers during 
transmissions and also inherits advantages of UDP. It achieves excellent 
throughput both for normal and short flows with congestion control mechanisms. 
In addition, it also guarantees fairness and convergence during periods of 
congestion. We use a simulator to evaluate DCUDP and compare it with other 
TCP-like protocols currently proposed for data centers. Our experiments 
demonstrate that DCUDP outperforms these protocols in aspects like throughput, 
fairness and convergence. Besides, in our latest work, we also try to fulfill 
the latency requirements by many MapReduce applications in data centers, so we 
propose SP-DCUDP , an updated version of DCUDP. SP-DCUDP can greatly reduce 
traffic latency for MapReduce traffic in data center networks and provide 
perfect queue length control in switch sides than ever before. We use 
experiments to validate the performance of SP-DCUDP compared with other traffic 
protocols in aspects like latency, queue length control and so on.


Date:			Monday, 20 August 2012

Time:			10:30am – 12:30pm

Venue:			Room 3501
 			Lifts 25/26

Committee Members:	Prof. Mounir Hamdi (Supervisor)
 			Dr. Jogesh Muppala (Chairperson)
 			Dr. Lin Gu


**** ALL are Welcome ****