toggle visibility Search & Display Options

Select All    Deselect All
 |   | 
  Record Links
Author (up) Borquez-Paredes, D.; Beghelli, A.; Leiva, A.; Jara, N.; Lozada, A.; Morales, P.; Saavedra, G.; Olivares, R. doi  openurl
  Title Agent-based distributed protocol for resource discovery and allocation of virtual networks over elastic optical networks Type
  Year 2022 Publication Journal of Optical Communications and Networking Abbreviated Journal J. Opt. Commun. Netw.  
  Volume 14 Issue 8 Pages 667-679  
  Keywords Optical fiber networks; Resource management; SubstratesVirtual links; ProtocolsVirtualization; Optical fiber communication  
  Abstract Network virtualization is a key enabling technology for “Infrastructure as a Service” provisioning, increasing the flexibility and cost savings offered to customers. By extending the concept of server virtualization to the network infrastructure, the allocation of different, independent virtual networks over a single physical network is carried out on demand. A fundamental challenge in network virtualization systems is to choose which physical nodes and links to use for hosting virtual networks in the physical infrastructure, known as the “virtual network allocation” problem. All virtual network allocation proposals on elastic optical networks assume a centralized operation, deploying a single node with access to the network state global information and assigning resources accordingly. However, such configuration might exhibit the inherent problems of centralized systems: survivability and scalability. In this paper, we present a distributed protocol for resource discovery, mapping, and allocation of network virtualization systems. The distributed protocol is generic enough as to be used with different substrate networks. However, in this paper, it has been adapted to work over an elastic optical network infrastructure, where further considerations regarding the spectrum continuity and contiguity constraints must also be taken into account. The distributed protocol is based on the concept of alliances: upon the arrival of a virtual network request, agents located in the physical network nodes compete to form the first alliance able to host the virtual network. Because the first alliances to be formed are also the ones composed by nearby nodes, a good network resource usage is achieved. The feasibility of the distributed protocol was studied by evaluating its ability to successfully establish virtual networks within acceptable time and with low bandwidth consumption from the coordination messages.  
  Corporate Author Thesis  
  Publisher Place of Publication Editor  
  Language Summary Language Original Title  
  Series Editor Series Title Abbreviated Series Title  
  Series Volume Series Issue Edition  
  ISSN 1943-0620 ISBN Medium  
  Area Expedition Conference  
  Notes WOS:000837452500002 Approved  
  Call Number UAI @ alexi.delcanto @ Serial 1632  
Permanent link to this record
Select All    Deselect All
 |   | 

Save Citations:
Export Records: