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A Load-Balancing Mechanism for Distributed SDN Control Plane Using Response Time

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posted on 2020-07-31, 08:28 authored by Jie Cui, Qinghe Lu, Hong Zhong, Miaomiao Tian, Lu Liu
Software-defined networking (SDN) has become a popular paradigm for managing large-scale networks including cloud servers and data centers because of its advantages of centralized management and programmability. The issues of scalability and reliability that a single centralized controller suffers makes distributed controller architectures emerge. One key limitation of distributed controllers is the statically configured switch-controller mapping, easily causing uneven load distribution among controllers. Previous works have proposed load-balancing methods with switch migration to address this issue. However, the higher-load controller is always directly considered as the overloaded controller that need to shift its load to other controllers, even if it has no response time delay. The pursuit of absolute load-balancing effect can also result in frequent network delays and service interruptions. Additionally, if there are several overloaded controllers, just one controller with the maximum load can be addressed within a single load-balancing operation, reducing load-balancing efficiency. To address these problems, we propose SMCLBRT, a load-balancing strategy of multiple SDN controllers based on response time, considering the changing features of real-time response times versus controller loads. By selecting the appropriate response time threshold and dealing with multiple overloading controllers simultaneously, it can well solve load-balancing problem in SDN control plane with multiple overloaded controllers. Simulation experiments exhibit the effectiveness of our scheme.

History

Citation

IEEE Transactions on Network and Service Management ( Volume: 15 , Issue: 4 , Dec. 2018 )

Author affiliation

School of Informatics

Version

  • AM (Accepted Manuscript)

Published in

IEEE Transactions on Network and Service Management

Volume

15

Issue

4

Pagination

1197 - 1206

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

eissn

1932-4537

Copyright date

2018

Language

en

Publisher version

https://ieeexplore.ieee.org/document/8493344

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