Open AccessFault-Tolerance Distributed Control Plane for Software Defined Networks
Author(s) -
Василий Николаевич Пашков
Publication year - 2019
Publication title -
modelirovanie i analiz informacionnyh sistem
Language(s) - English
Resource type - Journals
eISSN - 2313-5417
pISSN - 1818-1015
DOI - 10.18255/1818-1015-2019-1-101-121
Subject(s) - openflow , redundancy (engineering) , backup , computer science , fault tolerance , software defined networking , controller (irrigation) , distributed computing , forwarding plane , routing control plane , computer network , operating system , network packet , agronomy , biology
The architecture of the high availability distributed control plane for SDN/OpenFlow networks are considered. High availability is achieved by redundancy of controller instances, active switch-controller communications, computing resources and tools for a controller instance failure and overloading detection and recovery. The proactive backup controller allocation algorithm which allows to minimize the time to repair in the case of a single controller instance failure is discussed. The algorithm for controller load-balancing allows dynamically reconfigure the control plane with a minimum number of switch control transfer operations to avoid controller instance overloading. The initial experimental results of the proposed algorithms for the HA distributed SDN control plane are described.