Patent ID: 7103845

Claim:
A terminal apparatus for an operator used when connected to an arbitrary node in a network system including a plurality of ring networks each of which includes a plurality of nodes connected to each other through a communication line, said terminal apparatus for an operator comprising: a display unit; operating means for accepting click operations by a user; information acquiring means for acquiring from a connected node notification information concerning a ring network to which said node belongs; information processing means for managing occurrence statuses of failures in said network system based on said notification information acquired by said information acquiring means; and display controlling means for displaying information processed by said information processing means on said display unit, wherein said display controlling means displays a node icon associated with each node belonging to a ring network to which a node connected with its own apparatus belongs, displays a line associated with said communication line between said node icons on said display unit, and causes display modes of said node icon and said line to differ from each other depending on presence/absence of a failure in a corresponding node or communication line.