Apparatus and method for determining routing paths in a communication network with selection attributes

摘要

A communications network routing unit (D) has a processor (M) to ascertain the node (N1-7) connections, calculate possible paths between terminals (T1-4) taking account of selected additive and non additive criteria including bandwidth, length, duration and forbidden links and choose an ideal path performance solution with assignment to each possible path of a weighting used to select the best k paths from which one is selected for routing.