Abstract: A bottom-up (or upward) multilayer network recovery method and apparatus based on a root-cause analysis are disclosed to quickly and accurately perform a recovery operation. The bottom-up multilayer network recovery method based on a root-cause analysis includes: simultaneously counting, by a fault detection layer, a root-cause analysis (RA) time and a hold-off (HO) time, upon detecting an occurrence of a fault; performing, by the fault detection layer, a root-cause analysis during the RA time to recognize a layer in which a root-cause has occurred; when the root-cause has occurred in the fault detection layer, immediately recovering the fault by the fault detection layer, and when a root-cause has occurrence in a lower layer, waiting for the HO time until such time as the lower layer can recover the fault; and when the fault has not been recovered even after the HO time has lapsed, recovering the fault by the fault detection layer.

Abstract: A getter flashing method for a cathode ray tube includes the steps of loading a receptacle of the getter with an active metal, positioning the getter in a funnel such that the active metal is diffused toward an inner surface of the funnel in the vicinity of the getter, and heating and vaporizing the active metal. The getter has a receptacle for receiving the active metal and a support for supporting the receptacle. The receptacle and the support are connected to each other such that an opening portion of the receptacle is directed toward the neighboring funnel portion.