CPVNF: Cost-Efficient Proactive VNF placement and chaining for value-added services in content delivery networks

Abstract : Value-added services (e.g., overlaid video advertisements) have become an integral part of today’s content delivery networks (CDNs). To offer cost-efficient, scalable, and more agile provisioning of new value-added services in CDNs, network functions virtualization paradigm may be leveraged to allow implementation of fine-grained services as a chain of virtual network functions (VNFs) to be placed in CDN. The manner in which these chains are placed is critical as it both affects the quality of service (QoS) and provider cost. The problem is however, very challenging due to the specifics of the chains (e.g., one of their end-points is not known prior to the placement). We formulate it as an integer linear program and propose a cost efficient proactive VNF placement and chaining algorithm. The objective is to find the optimal number of VNFs along with their locations 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 servers and end-users is an important feature of the proposed algorithm. Through simulations, the algorithm’s behavior for small-scale to large-scale CDN networks is analyzed.
Complete list of metadatas

Cited literature [44 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01879110
Contributor : Ehsan Ahvar <>
Submitted on : Wednesday, September 26, 2018 - 10:50:46 PM
Last modification on : Thursday, October 17, 2019 - 12:36:53 PM
Long-term archiving on : Thursday, December 27, 2018 - 6:20:17 PM

File

TNSMdeye1803.06025.pdf
Files produced by the author(s)

Identifiers

Citation

Mouhamad Dieye, Shohreh Ahvar, Jagruti Sahoo, Ehsan Ahvar, Roch Glitho, et al.. CPVNF: Cost-Efficient Proactive VNF placement and chaining for value-added services in content delivery networks. IEEE Transactions on Network and Service Management, IEEE, 2018, 15 (2), pp.774 - 786. ⟨10.1109/TNSM.2018.2815986⟩. ⟨hal-01879110⟩

Share

Metrics

Record views

248

Files downloads

644