| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a communication method of an integrated IP transfer network, including in the inside a plurality of separated IP transfer networks having various characteristics, such as IP telephone networks, IP image networks, IP electronic text networks, and IP base TV broadcasting networks. <P>SOLUTION: The integrated IP transfer network includes a plurality of network node devices and a plurality of IP transfer networks, and the network node devices are respectively connected to a plurality of terminals installed at the outside of the integrated IP transfer network and respectively connected at least to one or more IP transfer networks. In the method for communication between a transmission-side terminal 1 and a destination terminal 2 via the integrated IP network, by transmitting an IP packet transmitted from the transmission side terminal 1 to the destination terminal 2 via any one of the IP transfer networks connected to the network node devices 1 via the destination-side network node device 2, the network node device 1 determines the IP transfer network via which the IP packet is transmitted, on the basis of a port number included in the IP packet. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
