Title
Scalable and coordinated allocation of service function chains.
Abstract
Network Functions Virtualization is an emerging initiative where standard IT virtualization evolves to consolidate network functions onto high volume servers, switches and storage that can be located anywhere in the network. In NFV, network services are built by chaining a set of Virtual Network Functions (VNFs) that must be allocated on top of the physical network infrastructure (commodity hardware). This challenge is commonly known as the NFV resource allocation problem, that is divided in two problem stages: 1) service chain composition and 2) service chain embedding. Up to now, existing approaches do not scale with regard to problem size. In this paper, we address this problem and propose CoordVNF, a heuristic method to coordinate the composition of VNF chains and their embedding into the substrate network. Evaluation results show that the heuristic is able to quickly solve the allocation problem even in substrate network topologies with hundreds of nodes.
Year
DOI
Venue
2017
10.1016/j.comcom.2016.09.010
Computer Communications
Keywords
Field
DocType
Network function virtualization,Chaining of network functions,Orchestration and resource allocation,Service function chaining
Virtualization,Virtual network,Computer science,Server,Network simulation,Computer network,Real-time computing,Network topology,Resource allocation,Network management station,Distributed computing,Intelligent computer network
Journal
Volume
Issue
ISSN
102
C
0140-3664
Citations 
PageRank 
References 
16
0.82
11
Authors
2
Name
Order
Citations
PageRank
Michael Beck154925.12
Juan Felipe Botero280740.10