FIELD: physics, computer engineering.
SUBSTANCE: invention relates to a method in a border node of an AS#n and a border node comprising a border route control unit. The border node is configured to route data packets from a source node ON in an originating autonomous system AS#0 to a destination node TN in a terminating autonomous system AS#T, via intermediate autonomous systems. The method determines one inter-autonomous system (AS) path or multiple inter AS paths constituting a route or multiple routes, respectively, between the originating autonomous system and terminating autonomous system based on at least an energy consumption metric ECMBNP of transit paths through the own autonomous system and other autonomous systems and a total energy consumption metric ECMASROUTE for each possible inter-autonomous system path. The border node is adapted to store the route or the multiple routes in a border gateway routing table.
EFFECT: reducing power consumption on the Internet.
14 cl, 5 dwg
