%0 Conference Proceedings %T Virtualized Controller Placement for Multi-domain Optical Transport Networks %+ University of California [Davis] (UC Davis) %+ Politecnico di Milano [Milan] (POLIMI) %+ Indian Institute of Technology Kharagpur (IIT Kharagpur) %A Rahman, Sabidur %A Ahmed, Tanjila %A Ferdousi, Sifat %A Bhaumik, Partha %A Chowdhury, Pulak %A Tornatore, Massimo %A Das, Goutam %A Mukherjee, Biswanath %Z Part 1: Regular Papers %< avec comité de lecture %( Lecture Notes in Computer Science %B 23th International IFIP Conference on Optical Network Design and Modeling (ONDM) %C Athens, Greece %Y Anna Tzanakaki %Y Manos Varvarigos %Y Raul Muñoz %Y Reza Nejabati %Y Noboru Yoshikane %Y Markos Anastasopoulos %Y Johann Marquez-Barja %I Springer International Publishing %3 Optical Network Design and Modeling %V LNCS-11616 %P 39-50 %8 2019-05-13 %D 2019 %R 10.1007/978-3-030-38085-4_4 %K SDN and optical controller %K Optical transport network %K Cost savings %K Network virtualization %K Edge computing %Z Computer Science [cs] %Z Computer Science [cs]/Networking and Internet Architecture [cs.NI]Conference papers %X Optical multi-domain transport networks are often controlled by a hierarchical distributed architecture of controllers. Optimal placement of these controllers is very important for their efficient management and control. Traditional SDN controller placement methods focus mostly on controller placement in datacenter networks. But the problem of virtualized controller placement for multi-domain transport networks needs to be solved in the context of geographically-distributed heterogeneous multi-domain networks. In this context, Edge Datacenters have enabled network operators to place virtualized controller instances closer to users, besides providing more candidate locations for controller placement. In this study, we propose a dynamic controller placement method for optical transport networks that considers the heterogeneity of optical controllers, resource limitations at edge hosting locations, latency requirements, and costs. Simulation studies considering practical scenarios show significant cost savings and delay reductions compared to standard placement approaches. %G English %Z TC 6 %Z WG 6.10 %2 https://inria.hal.science/hal-03200672/document %2 https://inria.hal.science/hal-03200672/file/484327_1_En_4_Chapter.pdf %L hal-03200672 %U https://inria.hal.science/hal-03200672 %~ IFIP-LNCS %~ IFIP %~ IFIP-TC %~ IFIP-WG %~ IFIP-TC6 %~ IFIP-LNCS-11616 %~ IFIP-ONDM %~ IFIP-WG6-10