Abstract
Concurrent multipath transfer effectively improves network throughput and reliability by utilizing the unoccupied network links. However, the performance of concurrent multipath transfer degrades significantly in the heterogeneous Internet of Things. The reason is that the disorder and retransmission will increase sharply if the quality of links are greatly different. This paper proposes a multipath stateful forwarding mechanism in the granularity of flowlet, which is featured with planning the flowlet forwarding dynamically to improve the transmission success rate. Besides, our mechanism implements stateful forwarding by improving the state information processing capability of the data plane. It can adjust the size of the flowlet based on the network performance of the path, thereby improving the bandwidth resource utilization of the system. In particular, the proposed mechanism can sense network congestion status dynamically, detect network anomalies, and re-plan the forwarding strategy. Experimental results show that in the harsh environment (link quality varies greatly among the three test paths), the proposed mechanism can improve the throughput by 114.7% and reduce the percentage of out of order packets by 29.5% compared with the Round-Robin Scheduling mechanism.
Highlights
The Internet of Things (IoT) is an essential part of the new generation of Internet technology, which is considered to be the third wave of the development of the information industry [1]–[5]
The development of IoT technologies is based on the realization of the Internet of Everything, so, the core of the Internet of Things is still the Internet
Based on the above research, and considering the emergence of new network technologies and programmable data plane technology, we propose a flowlet-based stateful multipath forwarding mechanism (FSMF) to improve the network transmission performance
Summary
The Internet of Things (IoT) is an essential part of the new generation of Internet technology, which is considered to be the third wave of the development of the information industry [1]–[5]. To deliver higher network transmission performance to meet users’ network needs is receiving widespread attention [9] Under this background, the concurrent multipath transfer (CMT), as an access technology that can effectively improve data throughput, network resource utilization, and system robustness, has become one of the most popular research hotspots. CMT is a technique for transmitting packets in more than one path It can improve the network performance of the system by aggregating network resources. Based on the above research, and considering the emergence of new network technologies and programmable data plane technology, we propose a flowlet-based stateful multipath forwarding mechanism (FSMF) to improve the network transmission performance. T hird, we design a dynamic forwarding mechanism based on congestion state awareness, which makes the system have a better performance when dealing with network link interruption
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