DASON: Dependability Assessment Framework for Imperfect Distributed SDN Implementations

TitleDASON: Dependability Assessment Framework for Imperfect Distributed SDN Implementations
Publication TypeJournal Article
Year of Publication2020
AuthorsP Vizarreta, K Trivedi, V Mendiratta, W Kellerer, and C Mas-Machuca
JournalIeee Transactions on Network and Service Management
Volume17
Issue2
Start Page652
Pagination652 - 667
Date Published06/2020
Abstract

In Software Defined Networking (SDN), network programmability is enabled through a logically centralized control plane. Production networks deploy multiple controllers for scalability and reliability reasons, which in turn rely on distributed consensus protocols to operate in a logically centralized manner. However, bugs in distributed control plane can have disastrous effects on the data plane, e.g., losing traffic by installing paths containing blackholes. In this paper we study the prevalence of issues in state-of-the-art distributed frameworks in SDN, by analyzing 500+ issues reported in two of the largest open source SDN controller platforms: Open Network Operating System (ONOS) and OpenDaylight (ODL), during the period between 2014-2019. We identify system vulnerabilities, localize dependability bottlenecks, and provide stochastic models for a holistic assessment of system dependability.

DOI10.1109/TNSM.2020.2973925
Short TitleIeee Transactions on Network and Service Management