| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To reduce a processing period for duplicating call information to scalably improve a call processing performance as an entire cluster when the number of nodes of a cluster is increased or decreased. <P>SOLUTION: In a signal distribution duplication destination determination system 1 including plural nodes 20 for performing call processing, and a signal distribution duplication destination determination device 10 for receiving call control signals in a lump, distributing them to individual nodes 20 and determining a duplication destination of call information required for continuing a session, the signal distribution duplication destination determination device 10 is configured to: dispose the ID of each node 20 in a closed ID space; determining another node 20, to be the duplication destination of the call information stored by a subject node, first disposed in a predetermined rotational direction from a position at which a subject node 20 is disposed; and, upon receiving call control information to be processed by a failed node 20 when the node fails, determining a node 20 (buddy) storing a duplication of the call information of the failing node 20 to be the distribution destination. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
