METHOD AND DEVICE FOR COMBINING COMMUNICATION CHANNELS

摘要

A combination of communication networks is treated as a communication network. A nested structure in which a combination of communication networks is designated in addition to the elements of the combination enables a complicated combination to be treated. The model of a communication channel provided by a plurality of communication networks is adapted to the model of a communication channel exclusively used for the combination of communication networks. Therefore, the system where communication channels are provided by a plurality of communication networks can be adapted without greatly changing a conventional communication network design system in which acceptance of provision of communication channels from one communication network for every communication link is premised. The serial connection of communication channels is achieved by a combination of a central communication channel and the accessing communication channels used for making access to the central communication channel. It is possible to make a combination ofcommunication channels connected in many stages. This is practical in that the communication channels which are decisive factors in determining the price and quality are determined first. This invention is effective to utilize communication channels provided by internets and many commercial communication networks.