Patent ID: 7583796
Filing Date: 2009-09-01
Classification: H04L,H04M

Abstract:
1. A distribution route generation apparatus, comprising: a collection device collecting information about a communications cost between a plurality of nodes of a communications network the nodes including a plurality of redistribution servers which copy and branch streaming data at respective branch points in the communication network to multi-cast the streaming data in an application layer where route cost is based on delay and number of hops, stream rate, reference rate, predetermined value as an additional cost and coefficients used to convert delay to number of hops where route cost=number of hops+α*max(0, (delay-β))*stream rate/reference rate+predetermined value; a generation device automatically generating distribution route information, which indicates a plurality of distribution routes to a plurality of clients on the communications network forced to pass through at least one of the redistribution servers from a source, based on the information about the communications cost when the streaming data are originated and distributed from the source to the plurality of clients; and an output device outputting the distribution route information.