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On routing scalability in flat SDN architectures

Hemanth Kumar Ravuri (UGent) , Maria Torres Vega (UGent) , Jeroen van der Hooft (UGent) , Tim Wauters (UGent) , B. Da and Filip De Turck (UGent)
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Abstract
The rigidity of traditional network architectures, with tightly coupled control and data planes, impair their ability to adapt to the dynamic requirements of future application domains, such as the Tactile Internet or Holographic-Type Communications. Software-Defined Networking (SDN) architectures, which provide programmability to configure the network, have the potential to provide the required dynamism. However, given its centralized essence, SDN suffers from scalability issues. Therefore, efforts have been made to propose alternative decentralized solutions, such as the flat distributed SDN architecture. Despite its potential, the real applicability and scalability of decentralized SDN solutions are still open research questions. This paper presents a comparative analysis of the effects of different routing approaches on the scalability of flat distributed SDN architectures. Using the Open Network Operating System (ONOS) as our evaluation architecture, we have studied the tradeoff between routing overhead in the control data plane and inter-controller communications for different degrees of decentralization. We have found that routing applications, which only require control-data plane communication for setting the path, benefit more from decentralization than the ones which utilize inter-controller communications and ensure Quality of Service (QoS). Our findings highlight the need for efficient routing mechanisms to deal with inter-controller overhead while lowering the amount of control-data plane communication.

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MLA
Ravuri, Hemanth Kumar, et al. “On Routing Scalability in Flat SDN Architectures.” 2020 11th International Conference on Network of the Future (NoF), IEEE, 2020, pp. 1–5, doi:10.1109/NoF50125.2020.9249170.
APA
Ravuri, H. K., Torres Vega, M., van der Hooft, J., Wauters, T., Da, B., & De Turck, F. (2020). On routing scalability in flat SDN architectures. In 2020 11th International Conference on Network of the Future (NoF) (pp. 1–5). Bordeaux, France: IEEE. https://doi.org/10.1109/NoF50125.2020.9249170
Chicago author-date
Ravuri, Hemanth Kumar, Maria Torres Vega, Jeroen van der Hooft, Tim Wauters, B. Da, and Filip De Turck. 2020. “On Routing Scalability in Flat SDN Architectures.” In 2020 11th International Conference on Network of the Future (NoF), 1–5. IEEE. https://doi.org/10.1109/NoF50125.2020.9249170.
Chicago author-date (all authors)
Ravuri, Hemanth Kumar, Maria Torres Vega, Jeroen van der Hooft, Tim Wauters, B. Da, and Filip De Turck. 2020. “On Routing Scalability in Flat SDN Architectures.” In 2020 11th International Conference on Network of the Future (NoF), 1–5. IEEE. doi:10.1109/NoF50125.2020.9249170.
Vancouver
1.
Ravuri HK, Torres Vega M, van der Hooft J, Wauters T, Da B, De Turck F. On routing scalability in flat SDN architectures. In: 2020 11th International Conference on Network of the Future (NoF). IEEE; 2020. p. 1–5.
IEEE
[1]
H. K. Ravuri, M. Torres Vega, J. van der Hooft, T. Wauters, B. Da, and F. De Turck, “On routing scalability in flat SDN architectures,” in 2020 11th International Conference on Network of the Future (NoF), Bordeaux, France, 2020, pp. 1–5.
@inproceedings{8678234,
  abstract     = {{The rigidity of traditional network architectures, with tightly coupled control and data planes, impair their ability to adapt to the dynamic requirements of future application domains, such as the Tactile Internet or Holographic-Type Communications. Software-Defined Networking (SDN) architectures, which provide programmability to configure the network, have the potential to provide the required dynamism. However, given its centralized essence, SDN suffers from scalability issues. Therefore, efforts have been made to propose alternative decentralized solutions, such as the flat distributed SDN architecture. Despite its potential, the real applicability and scalability of decentralized SDN solutions are still open research questions. This paper presents a comparative analysis of the effects of different routing approaches on the scalability of flat distributed SDN architectures. Using the Open Network Operating System (ONOS) as our evaluation architecture, we have studied the tradeoff between routing overhead in the control data plane and inter-controller communications for different degrees of decentralization. We have found that routing applications, which only require control-data plane communication for setting the path, benefit more from decentralization than the ones which utilize inter-controller communications and ensure Quality of Service (QoS). Our findings highlight the need for efficient routing mechanisms to deal with inter-controller overhead while lowering the amount of control-data plane communication.}},
  author       = {{Ravuri, Hemanth Kumar and Torres Vega, Maria and van der Hooft, Jeroen and Wauters, Tim and Da, B. and De Turck, Filip}},
  booktitle    = {{2020 11th International Conference on Network of the Future (NoF)}},
  isbn         = {{9781728180557}},
  language     = {{eng}},
  location     = {{Bordeaux, France}},
  pages        = {{1--5}},
  publisher    = {{IEEE}},
  title        = {{On routing scalability in flat SDN architectures}},
  url          = {{http://dx.doi.org/10.1109/NoF50125.2020.9249170}},
  year         = {{2020}},
}

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