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Transmission Scheduling for Multi-homed Transport Protocols with Network Failure Tolerance

By Yuansong Qiao, Enda Fallon, John Murphy and Liam MurphyZhiqiang Shi, Austin Hanley, Yuansong Qiao, Zhiqiang Shi, Enda Fallon, John Murphy and Liam Murphy

Abstract

Abstract In heterogeneous network environments, the network connections of a multi-homed device may have significant bandwidth differential. For a multihomed transmission protocol designed for network failure tolerance, such as SCTP, path selection algorithms for data transmission drastically affect performance. This article studies the effect of path bandwidth differential on the performance of retransmission strategies in multi-homing environments. It identifies that fast retransmission on an alternate path may cause receive buffer blocking when path bandwidth differential is significant and the receive buffer is limited. A theoretical model is proposed for selecting retransmission path during the fast retransmission phase, based on receive buffer and path conditions. From these observations and analysis results, this article proposes that path selection strategies for transmitting new data and retransmitted data should be decoupled. A new path selection scheme is proposed and evaluated through SCTP simulations. Keywords Multi-homing, Transmission Protocol

Topics: SCTP, Path Selection
Year: 2010
OAI identifier: oai:CiteSeerX.psu:10.1.1.161.5861
Provided by: CiteSeerX
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