Title :
An Energy Saving Routing Algorithm for a Green OSPF Protocol
Author :
Cianfrani, Antonio ; Eramo, Vincenzo ; Listanti, Marco ; Marazza, Marco ; Vittorini, Enrico
Author_Institution :
INFOCOM Dept., Univ. of Roma Sapienza, Rome, Italy
Abstract :
In this paper we analyze the challenging problem of energy saving in IP networks. A novel network-level strategy based on a modification of current link-state routing protocols, such as OSPF, is proposed; according to this strategy, IP routers are able to power off some network links during low traffic periods. The proposed solution is a three-phases algorithm: in the first phase some routers are elected as "exporter" of their own Shortest Path Trees (SPTs); in the second one the neighbors of these routers perform a modified Dijkstra algorithm to detect links to power off; in the last one new network paths on a modified network topology are computed. Performance study shows that, in an actual IP network, even more than the 60% of links can be switched off.
Keywords :
IP networks; routing protocols; telecommunication network topology; trees (mathematics); IP networks; IP routers; energy saving routing algorithm; green OSPF protocol; link-state routing protocols; modified Dijkstra algorithm; network links; network topology; network-level strategy; shortest path trees; three-phases algorithm; Communications Society; Computer networks; Costs; Ear; Energy consumption; IP networks; Network topology; Routing protocols; Switches; Telecommunication traffic;
Conference_Titel :
INFOCOM IEEE Conference on Computer Communications Workshops , 2010
Conference_Location :
San Diego, CA
Print_ISBN :
978-1-4244-6739-6
Electronic_ISBN :
978-1-4244-6739-6
DOI :
10.1109/INFCOMW.2010.5466646
