Open AccessCost‐Efficient Virtual Optical Network Embedding for Manageable Inter‐Data‐Center Connectivity
Author(s) -
Perelló Jordi,
PavónMariño Pablo,
Spadaro Salvatore
Publication year - 2013
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.13.0212.0271
Subject(s) - computer science , flexibility (engineering) , network virtualization , data center , node (physics) , virtualization , distributed computing , computer network , embedding , focus (optics) , integer programming , cloud computing , engineering , operating system , algorithm , artificial intelligence , statistics , physics , mathematics , structural engineering , optics
Network virtualization opens the door to novel infrastructure services offering connectivity and node manageability. In this letter, we focus on the cost‐efficient embedding of on‐demand virtual optical network requests for interconnecting geographically distributed data centers. We present a mixed integer linear programming formulation that introduces flexibility in the virtual‐physical node mapping to optimize the usage of the underlying physical resources. Illustrative results show that flexibility in the node mapping can reduce the number of add‐drop ports required to serve the offered demands by 40%.