Revisiting the Controller Placement Problem www.data61.csiro.au
“SDN reduces the network upgrading cost by ~50% compared to the legacy technologies” Dimension Data, 2013 "Worldwide Software-Defined Networking Market Expected to Reach $8 Billion by 2018“ International Data Corporation (IDC), 2014
Software defined network (SDN) applications
Content distribution network (CDN)
Cellular network
Vehicular area network (VAN)
Data center network (DCN)
Key findings
“Google launches Andromeda, a software defined network underlying its cloud” GIGAOM Research, 2 April 2014
LiDy: the proposed solution
R.2
YBLG: the considered standard solution Cost efficiency of the LiDy Wide area network
Challenges
Power consumption efficiency of the LiDy A single SDN controller is not capable enough to handle all traffic loads of an urban area.R.2 Random placement of controllers in the SDN results ~5 times worse latency than their optimal placement. R.1
Methodology Controller module concept
Utilization efficiency of the LiDy
Controller module Consists of a group of controllers, and results a less distributed control plane
Controller module placement Latency is used as a mean to place the controller module in the network
Controller utilization Offer a dynamic traffic load management policy of the control plane
FOR FURTHER INFORMATION
REFERENCES
[email protected] [email protected] [email protected] The Mobile Systems Research Group, NICTA
[R.1] B. Heller, R. Sherwood, and N. McKeown, The Controller Placement Problem, SIGCOMM Comp. Comm. Rev., Vol 42, No 4, pp. 473-478, September 2012. [R.2] M. T. I. Huque, G. Jourjon, V. Gramoli, Revisiting the Controller Placement Problem, Technical Report, NICTA, July 2015. [R.3] G. Yao, J. Bi, Y. Li, L. Guo, On the Capacitated Controller Placement Problem in Software Defined Networks, IEEE Comm. L., Vol.18, No.8, pp.13391342, August 2014.
COLLABORATORS
R.3
