| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To identify the establishment of a plurality of logical communication links between nodes. <P>SOLUTION: To the logical links (A and B) established between a first node (#1) and a second node (#2) by use of a first protocol belonging to a first layer, a signal, which is a signal of a second protocol belonging to a second layer higher than the first layer and to which information identifying a transmission source node is added, is transmitted (502, 503, 504, and 505). The first and the second nodes (#1 and #2) manage the communications links (A and B) in association with the node identifying information added to the signal received through the communications links (A and B). <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
