PCPV: Pattern-based Cost-efficient Proactive VNF placement and chaining for value-added services in content delivery networks

Shohreh Ahvar, Jagruti Sahoo, Ehsan Ahvar, Mouhamad Dieye, Roch Glitho, Halima Elbiaze, Noel Crespi
2018 2018 4th IEEE Conference on Network Softwarization and Workshops (NetSoft)  
Value-added services (VASs) are an integral part of todays Content Delivery Networks (CDNs). They can be implemented as a chain of Virtual Network Functions (VNFs). These chains need to be placed in an efficient way in CDNs in order to optimize quality of service (QoS) for end-users(EUs) while minimizing cost for providers. We formulate the problem as an Integer Linear Program (ILP) and propose a Pattern-based Cost-efficient Proactive VNF placement and chaining (PCPV) algorithm. The objective
more » ... to find the optimal number, location and chaining of VNFs in such a manner that the cost is minimized while QoS is met. Apart from cost minimization, the support for large-scale CDNs with a large number of physical machines (servers) and EUs is an important feature of the proposed algorithm. Through simulations, the algorithm behavior for small-scale to large scale CDN networks is analyzed.
doi:10.1109/netsoft.2018.8459986 dblp:conf/netsoft/AhvarSADGEC18 fatcat:raracxibvvgk3nrfrs7st2n6qy