Fay, Sharpe, Beall, Fagan, Minnich & McKee
Network management system and network status display method
 In a network management system, information items respectively of connection relationships, containment relationships, and display priority of a plurality of managed object instances (resources) are stored in a memory. According to a predetermined algorithm, there is calculated an evaluated value for display for each of the instances depending on the containment relationship information and display priority to select a limited number of instances representable on a screen. Displayed on the screen is a network layout diagram including icons representing the plural instances thus selected. When the user specifies one of the icons, the specified instance and a number of representable instances selected according to the evaluated values from a group of instances under the specified instance in the containment relationships are displayed in a new network layout diagram on the screen. When a fault occurs in either one of the instances, if an icon of the faulty instance is being displayed on the screen, the color thereof is changed into a second color. If the icon is not displayed on the screen, the color of icons being displayed for instances as high-ranking resources with respect to the faulty instance in the containment relationships is changed into a third color. 
Hitachi, Ltd.
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G06F H04L G06F H04L H04L Y10S
inventional inventional additional inventional inventional additional
Goro Masato Kohsuke Yasuhiko Yasuhiro Michio Takashi
Ikeba Saito Shinnai Nagai Tanaka Suzuki Kagei