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A congestion-aware and robust multicast protocol in SDN-based data center networks.

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Title: A congestion-aware and robust multicast protocol in SDN-based data center networks.
Authors: Zhu, Tingwei1 twzh@hust.edu.cn, Feng, Dan1 dfeng@hust.edu.cn, Wang, Fang1 wangfang@hust.edu.cn, Hua, Yu1 csyhua@hust.edu.cn, Shi, Qingyu1 qingyushi@hust.edu.cn, Xie, Yanwen1 ywxie@hust.edu.cn, Wan, Yong2 wanabc@hust.edu.cn
Source: Journal of Network & Computer Applications. Oct2017, Vol. 95, p105-117. 13p.
Subjects: Software-defined networking, Multicasting protocols, Data libraries, Robust optimization, Problem solving
Abstract: Continuously enriched distributed systems in data centers generate much network traffic in push-style one-to-many group mode, raising new requirements for multicast transport in terms of efficiency and robustness. Existing reliable multicast solutions, which suffer from low robustness and inefficiency in either host-side protocols or multicast routing, are not suitable for data centers. In order to address the problems of inefficiency and low robustness, we present a sender-initiated, efficient, congestion-aware and robust reliable multicast solution mainly for small groups in SDN-based data centers, called MCTCP. The main idea behind MCTCP is to manage the multicast groups in a centralized manner, and reactively schedule multicast flows to active and low-utilized links, by extending TCP as the host-side protocol and managing multicast groups in the SDN-controller. The multicast spanning trees are calculated and adjusted according to the network status to perform a better allocation of resources. Our experiments show that, MCTCP can dynamically bypass the congested and failing links, achieving high efficiency and robustness. As a result, MCTCP outperforms the state-of-the-art reliable multicast schemes. Moreover, MCTCP improves the performance of data replication in HDFS (Hadoop Distributed File System) compared with the original and TCP-SMO (an alternative reliable multicast scheme) based ones, e.g., achieves up to 1.5 × and 1.1 × improvements in terms of throughput, respectively. [ABSTRACT FROM AUTHOR]
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Database: Engineering Source
Description
Abstract:Continuously enriched distributed systems in data centers generate much network traffic in push-style one-to-many group mode, raising new requirements for multicast transport in terms of efficiency and robustness. Existing reliable multicast solutions, which suffer from low robustness and inefficiency in either host-side protocols or multicast routing, are not suitable for data centers. In order to address the problems of inefficiency and low robustness, we present a sender-initiated, efficient, congestion-aware and robust reliable multicast solution mainly for small groups in SDN-based data centers, called MCTCP. The main idea behind MCTCP is to manage the multicast groups in a centralized manner, and reactively schedule multicast flows to active and low-utilized links, by extending TCP as the host-side protocol and managing multicast groups in the SDN-controller. The multicast spanning trees are calculated and adjusted according to the network status to perform a better allocation of resources. Our experiments show that, MCTCP can dynamically bypass the congested and failing links, achieving high efficiency and robustness. As a result, MCTCP outperforms the state-of-the-art reliable multicast schemes. Moreover, MCTCP improves the performance of data replication in HDFS (Hadoop Distributed File System) compared with the original and TCP-SMO (an alternative reliable multicast scheme) based ones, e.g., achieves up to 1.5 × and 1.1 × improvements in terms of throughput, respectively. [ABSTRACT FROM AUTHOR]
ISSN:10848045
DOI:10.1016/j.jnca.2017.07.013