Patent ID: 8700758
Filing Date: 2014-04-15
Classification: H04L

Abstract:
1. A monitoring system comprising: at least one monitored apparatus to be monitored as an object of monitoring; and a monitoring apparatus that monitors the monitored apparatus, wherein said monitored apparatus comprises: an event detecting unit configured to detect an event in the monitored apparatus; an event kind holding unit configured to hold kind information of failure event which is to be reliably obtained by the monitoring apparatus as an important event; an event determining unit configured to determine whether or not the event detected by the event detecting unit is the important event held in the event kind holding unit on the basis of the kind of the event preliminarily held in the event kind holding unit; a first transmitting unit configured to transmit first information as event information related to an event detected by the event detecting unit to said monitoring apparatus by a connectionless communication method and; a second transmitting unit configured to transmit second information as said event information to said monitoring apparatus by a communication method different from said connectionless communication method, simultaneously with transmitting first information when the event determining unit determines that the event is the important event held in the event kind holding unit on the basis of the kind of the event preliminarily held in the event kind holding unit, wherein said second information as said event information not to be transmitted to said monitoring apparatus by said second transmitting unit when said event determining unit determines that the event detected by the event detecting unit is not the important event held in said event kind holding unit, said monitoring apparatus comprises: a first receiving unit configured to receive said first information transmitted from said first transmitting unit; a second receiving unit configured to receive said second information transmitted from said second transmitting unit, wherein said second information is information with which said monitoring apparatus confirms whether or not said monitoring apparatus receives said first information; a reception determining unit configured to determine whether or not said first receiving unit has received said first information corresponding to said second information when said second receiving unit received said second information; and a re-transmission requesting unit configured to request said first transmitting unit of said monitored apparatus to re-transmit said first information in the case where the reception determining unit determines that said first receiving unit has not received said first information corresponding to said second information received by said second receiving unit when the second transmitting unit configured to transmit second information as said event information to said monitoring apparatus simultaneously with transmitting first information, wherein the monitoring apparatus monitors the monitored apparatus based on said first information.