A Cross-Layer Architecture and Protocols for Reliable File-Stream Distribution
Shuoshuo Chen · 2016
The growing deployment of OpenFlow/SDN networks makes it increasingly possible to leverage network multicast services.This work proposes a novel cross-layer Multicast-Push Unicast-Pull (MPUP) architecture that includes functionality in the application, transport and link layers to offer users a reliable file-stream distribution service to multiple subscribers.In addition, for the transport layer, a reliable multicast protocol named File Multicast Transport Protocol (FMTP) was designed and implemented.A prototype implementation of the MPUP architecture, which includes FMTP, was realized in a new version of Local Data Manager (LDM), LDM7, a software program that has been in use since 1994 for real-time meteorology data distribution.LDM6, the currently deployed version, uses application-layer multicast (ALM).Experiments were run on the GENI infrastructure to compare LDM7 and LDM6.The two main findings are (i) LDM7 can be run at a higher sending rate than LDM6 allowing for improved performance (lower file-delivery latency), and (ii) to achieve the same performance, LDM7 uses significantly lower bandwidth and compute capacity.A three-fold improvement in performance improvement was possible with LDM7, and a bandwidth reduction from 350 Mbps to 21.4 Mbps was observed with 24 receivers.bCorporation for Atmospheric Research.He gives me much insightful advice for the NSF CC-NIE project.As a rookie in developing large software, he teaches me a lot of the best practices in thread-safe and maintainable programming.His deep understanding in OS and C/C++ significantly shortens our developing duration and benefits my future career.I appreciate my fellow students in the high speed networking research group for their enlightenment in our group meetings and their help on my thesis writing.