Jitter-based TCP for Incast Communication on Data Center Networks

Autor: Ching-hsiang Chu, 朱慶翔
Rok vydání: 2012
Druh dokumentu: 學位論文 ; thesis
Popis: 100
In the last decade, various cloud-based applications are proposed to meet the user’s requirements. Data center is the core component of the cloud-based application. It provides large-scale storage and computing resource to response the client’s request immediately over high-bandwidth and low-delay links. However, a unique incast communication pattern on data center causing the performance degradation to the commodity TCP variants. Unfortunately, few solutions can solve the problem fundamentally at low cost and based on TCP-level solution. In this thesis, we proposed JDCTCP, a jitter-based TCP for data center networks. JDCTCP extends the concept of a jitter ratio to aware the immediate queue condition and adjust the congestion window size properly to avoiding TCP timeout. JDCTCP only have to modify the sender side which means this is an end-to-end and TCP-level solution at very low cost compare to other solutions. The simulation results reveal that JDCTCP not only maintain the stability, fairness properies, but also conduct better goodput and delay performance than popular TCP variants such as Newreno, Westwood, SACK and DCTCP.
Databáze: Networked Digital Library of Theses & Dissertations