To distribute or not to distribute? Impact of latency on Virtual Network Function distribution at the edge of FMC networks

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


The Network Function Virtualization paradigm enables the possibility to dynamically instantiate Virtual Network Functions (VNFs) in Commercial-Off-The-Shelf (COTS) hardware. Such VNFs are then concatenated together in Service Chains (SCs) to provide specific Internet services to the users. Depending on latency requirements for such services and considering the aim of maximally consolidating the VNFs (i.e., of minimizing the COTS hardware), the VNFs can be centralized in few datacenters in the core network or they can be distributed closer to the edge of the network. In this paper we evaluate the impact of latency requirements of SCs on VNF distribution towards the edge of the network, by also showing the benefits of a Fixed and Mobile Convergent (FMC) metro/access network, with respect to a non-convergent network, in terms of consolidation.


  • Marco Savi
  • Ali Hmaity
  • Giacomo Verticale
  • Stefan Höst
  • Massimo Tornatore
External organisations
  • Polytechnic University of Milan
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Communication Systems


  • fixed and mobile convergence, metro network, network function virtualization, service chaining
Original languageEnglish
Title of host publication2016 18th International Conference on Transparent Optical Networks, ICTON 2016
PublisherIEEE Computer Society
ISBN (Electronic)9781509014675
Publication statusPublished - 2016 Aug 23
Publication categoryResearch
Event18th International Conference on Transparent Optical Networks, ICTON 2016 - Trento, Italy
Duration: 2016 Jul 102016 Jul 14

Publication series

NameTransparent Optical Networks (ICTON)
ISSN (Electronic)2161-2064


Conference18th International Conference on Transparent Optical Networks, ICTON 2016