Abstract: When there occurs a fault in any path of the MPLS or GMPLS network, a node which has detected the fault sends a notify message which is fault event information. A node which performs fault recovery receives the notify message (S1) and counting of the waiting time is triggered by this reception (S2). During this waiting time, LSA of OSPF is collected. When the waiting time is terminated, the node which performs fault recovery calculates alternative path based on the notify message and the LSA of OSPF (S3) and carries out fault recovery by restoration (S4).

Abstract: A fuel injection control device in which the amount of fuel injected by the fuel injector is increased at the time of acceleration. Namely, at the time of acceleration, the lean time and the rich time of the air-fuel mixture are calculated during the lean-rich discriminating time, which is basically equal to a time of an occurence of the lean time and the rich time when the air-fuel ratio is maintained at the stoichiometric air-fuel ratio at the time of acceleration. When the lean time becomes considerably longer than the rich time, the amount of fuel injected by the fuel injector is further increased.