Title
Network function consolidation in service function chaining orchestration
Abstract
Network Function Virtualization (NFV) is an emerging technology proposed to improve service provisioning in telecommunication industry. The flexibility of NFV enables network operator to dynamically deploy Virtual Network Functions (VNFs) according to real-time requirements. However, a large amount of VNFs with low utilization may be deployed in network due to dynamic arrival and departure of services and excessive deployment of VNFs. In this paper, we analyse this phenomenon and model it as the Network Function Consolidation (NFC) problem, followed by an Integer Linear Programming (ILP) formulation. We also design a greedy based heuristic to solve large scale cases. We conduct simulations on both real-world and random generated network topologies, and the results show that we can reduce 32% number of VNFs in average.
Year
DOI
Venue
2016
10.1109/ICC.2016.7510679
2016 IEEE International Conference on Communications (ICC)
Keywords
Field
DocType
Network Function Virtualization,Service Function Chaining,Network Function Consolidation
Virtual network,Virtualization,Heuristic,Chaining,Computer science,Server,Computer network,Real-time computing,Network topology,Integer programming,Orchestration (computing),Distributed computing
Conference
ISSN
ISBN
Citations 
1550-3607
978-1-4799-6665-3
6
PageRank 
References 
Authors
0.46
9
4
Name
Order
Citations
PageRank
Tao Wen15012.66
Hongfang Yu267962.42
Gang Sun346336.98
Liu Liu4142.01