Reference : Real-Time Virtual Network Function (VNF) Migration toward Low Network Latency in Clou...
Scientific journals : Article
Engineering, computing & technology : Computer science
Real-Time Virtual Network Function (VNF) Migration toward Low Network Latency in Cloud Environments
Cho, Daewoong [> >]
Taheri, Javid [> >]
Zomaya, Albert Y. [> >]
Bouvry, Pascal mailto [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Computer Science and Communications Research Unit (CSC) >]
Proceedings of IEEE 10th International Conference on Cloud Computing - Cloud 2017
IEEE Cloud 2017
[en] Cloud computing, Heuristic algorithms, Real-time systems, Resource management, Virtual machining, Dynamic scheduling, Electronic mail
[en] Network Function Virtualization (NFV) is an emerging network architecture to increase flexibility and agility within operator's networks by placing virtualized services on demand in Cloud data centers (CDCs). One of the main challenges for the NFV environment is how to minimize network latency in the rapidly changing network environments. Although many researchers have already studied in the field of Virtual Machine (VM) migration and Virtual Network Function (VNF) placement for efficient resource management in CDCs, VNF migration problem for low network latency among VNFs has not been studied yet to the best of our knowledge. To address this issue in this article, we i) formulate the VNF migration problem and ii) develop a novel VNF migration algorithm called VNF Real-time Migration (VNF-RM) for lower network latency in dynamically changing resource availability. As a result of experiments, the effectiveness of our algorithm is demonstrated by reducing network latency by up to 70.90% after latency-aware VNF migrations.

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