Alexander Krentsel and Nitika Saran and Bikash Koley and Subhasree Mandal and Ashok Narayanan and Sylvia Ratnasamy and Ali Al-Shabibi and Anees Shaikh and Rob Shakir and Ankit Singla and Hakim Weatherspoon

EECS Department, University of California, Berkeley

Technical Report No. UCB/

December 1, 2024

http://www2.eecs.berkeley.edu/Pubs/TechRpts/Hold/88a958725ad1bcd97fe2313d398e340c.pdf

Motivated by our experiences operating a global WAN, we argue that SDN’s reliance on infrastructure external to the data plane has substantially complicated the challenge of maintaining high availability. We propose a new decentralized SDN (dSDN) architecture in which SDN control logic instead runs within routers, eliminating the control plane’s reliance on external infrastructure and restoring fate-sharing between control and data planes. We present dSDN as a simpler approach to realizing the benefits of SDN in the WAN. Despite its much simpler design, we show that dSDN is practical from an implementation viewpoint, and outperforms centralized SDN in terms of routing convergence and SLO impact.

Advisors: Scott Shenker and Sylvia Ratnasamy

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BibTeX citation:

@mastersthesis{Krentsel:31528,
    Author= {Krentsel, Alexander and Saran, Nitika and Koley, Bikash and Mandal, Subhasree and Narayanan, Ashok and Ratnasamy, Sylvia and Al-Shabibi, Ali and Shaikh, Anees and Shakir, Rob and Singla, Ankit and Weatherspoon, Hakim},
    Title= {A Decentralized SDN Architecture for the WAN},
    School= {EECS Department, University of California, Berkeley},
    Year= {2024},
    Number= {UCB/},
    Abstract= {Motivated by our experiences operating a global WAN, we argue that SDN’s reliance on infrastructure external to the data plane has substantially complicated the challenge of maintaining high availability. We propose a new decentralized SDN (dSDN) architecture in which SDN control logic instead runs within routers, eliminating the control plane’s reliance on external infrastructure and restoring fate-sharing between control and data planes. We present dSDN as a simpler approach to realizing the benefits of SDN in the WAN. Despite its much simpler design, we show that dSDN is practical from an implementation viewpoint, and outperforms centralized SDN in terms of routing convergence and SLO impact.},
}

EndNote citation:

%0 Thesis
%A Krentsel, Alexander 
%A Saran, Nitika 
%A Koley, Bikash 
%A Mandal, Subhasree 
%A Narayanan, Ashok 
%A Ratnasamy, Sylvia 
%A Al-Shabibi, Ali 
%A Shaikh, Anees 
%A Shakir, Rob 
%A Singla, Ankit 
%A Weatherspoon, Hakim 
%T A Decentralized SDN Architecture for the WAN
%I EECS Department, University of California, Berkeley
%D 2024
%8 December 1
%@ UCB/
%F Krentsel:31528