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Joint Optimization of Latency Monitoring and Traffic Scheduling in Software Defined Heterogeneous Networks

  • Xu Zhang
  • Weigang Hou
  • Lei Guo
  • Siqi Wang
  • Qihan Zhang
  • Pengxing Guo
  • Ruijia Li
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 234)

Abstract

Since the current Internet is only able to provide best-effort services, the quality of service (QoS) for many emerging businesses cannot be well guaranteed. Meanwhile, due to the privatization of networks management, multi-vendor heterogeneous networks are difficult to provide end-to-end QoS assurance on demand. Therefore, heterogeneous devices from different vendors also bring new challenges to the flexible control of network equipment. Software defined network (SDN) is an emerging paradigm which separates the network’s control logic from the underlying routers and switches. In this paper, we design a monitoring loop of link latency by using both LLDP and Echo probing modules. Then, a dynamic routing algorithm is proposed to select optimized transmission path based on the information of link latency. In addition, we develop a routing application assorted with the monitoring mechanism by extending the RYU controller. We implement our solution in a semi-practical SDN testbed. Finally, the overall feasibility and efficiency of the proposed solution are experimentally verified and evaluated.

Keywords

SDN Latency monitoring Traffic engineering QoS Heterogeneous network 

Notes

Acknowledgements

This work is supported by the National Nature Science Foundation of China under Grant 61401082, in part by the General Armament Department and Ministry of Education United Fund under Grant 6141A0224-003, in part by the Fundamental Research Funds for the Central Universities under Grant N161604004 and Grant N161608001, and in part by National Scholarship Foundation of China.

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018

Authors and Affiliations

  1. 1.College of Computer Science and EngineeringNortheastern UniversityShenyangChina

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