The present invention relates to a method and an arrangement for distributing fault information from a lower level network management node to a higher level network management node in a network management architecture comprising modules logically representing network nodes and network links under management. The higher level network management node subscribes to at least some detailed fault information. And, a notification comprising a summary of fault information sent by the lower level network management node is received by the higher level network management node. Then, the higher level network management node retrieves the subscribed detailed fault information from said received notification.