Formal modeling and verification of software-defined networking with multiple controllers

Miyoung Kang, Jin Young Choi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    Traditional SDN has one controller, but more recent SDN approaches use multiple controllers on one network. However, the multiple controllers need to be synchronized with each other in order to guarantee a consistent network view, and complicated control management and additional control overhead are required. To overcome these limitations, Kandoo [5] has been proposed in which a root controller manages multiple unsynchronized local controllers. However, in this approach, loops can form between the local controllers because they manage different topologies. We propose a method for modeling a hierarchical design to detect loops in the topology and prevent them from occurring using UPPAAL model checker. In addition, the properties of multiple controllers are defined and verified based UPPAAL framework. In particular, we verify the following properties in a multiple controller: (1) elephant flows go through the root controller, (2) all flows go through the switch that is required to maintain security, and (3) they avoid unnecessary switches for energy efficiency.

    Original languageEnglish
    Title of host publicationTestbeds and Research Infrastructures for the Development of Networks and Communications - 14th EAI International Conference, TridentCom 2019, Proceedings
    EditorsHonghao Gao, Kuang Li, Xiaoxian Yang, Yuyu Yin
    PublisherSpringer
    Pages81-94
    Number of pages14
    ISBN (Print)9783030432140
    DOIs
    Publication statusPublished - 2020
    Event14th EAI International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communications, TridentCom 2019 - Changsha, China
    Duration: 2019 Dec 72019 Dec 8

    Publication series

    NameLecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
    Volume309 LNICST
    ISSN (Print)1867-8211

    Conference

    Conference14th EAI International Conference on Testbeds and Research Infrastructures for the Development of Networks and Communications, TridentCom 2019
    Country/TerritoryChina
    CityChangsha
    Period19/12/719/12/8

    Bibliographical note

    Publisher Copyright:
    © ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering. 2020.

    Keywords

    • Formal modeling
    • Formal verification
    • SDN
    • UPPAAL

    ASJC Scopus subject areas

    • Computer Networks and Communications

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