SUPERVISION PROGRAM, SUPERVISION DEVICE AND SUPERVISION METHOD

摘要

PROBLEM TO BE SOLVED: To improve accuracy in identifying a link of fault occurrence among aggregated links.;SOLUTION: On deciding the occurrence of a fault in the aggregated links, a supervision device 101 identifies the number of links of a fault occurrence cause, based on a transmission source address of a passing packet and the number of lost packets in a lost packet group. The supervision device 101 then disconnects one link among the aggregated links. Next, based on the transmission source address of a passing packet after the link disconnection and the number of lost packets in the lost packet group, the supervision device 101 identifies the number of links of the fault occurrence cause after the link disconnection. If the number of links of the fault occurrence cause is decreased after the link disconnection as compared to before the link disconnection, the supervision device 101 identifies that the disconnected link is the fault occurrence cause, while if the number of links of the fault occurrence cause coincides between before and after the disconnection, the supervision device 101 identifies that the disconnected link is not the fault occurrence cause.;COPYRIGHT: (C)2012,JPO&INPIT