Rerouting method for a PVC route on an ATM network and a network management system using the rerouting method

A network management system connected to a plurality of network elements provided on a permanent virtual channel (PVC) route through a predetermined communication network, each network element including an element data collecting means and a fault notifying means, and the system comprising:

• an ATM network resource managing means for managing resources included in the ATM network;
• a PVC route connection managing means connected to the element data collecting means through the communication network for managing situation of connection of the PVC route;
• a PVC route searching means for searching a plurality of PVC routes;
• a fault event analyzing means for receiving a fault from the fault notifying means through the communication network when the fault occurs at any one of the network elements, and analyzing the fault;
• an alternate route defining means for previously defining a plurality of alternate routes for the PVC route;
• and
• an alternate route processing means for switching a faulty route to one of the plurality of alternate routes defined by the alternate route defining means when the fault occurs at any one of network elements.

A network management system connected to a plurality of network elements provided on a permanent virtual channel (PVC) route through a predetermined communication network, each network element including an element data collecting means and a recovery notifying means, the system comprising:

• an ATM network resource managing means for managing resources included in the ATM network;
• a PVC connection managing means connected to the element data collecting means through the communication network for managing a situation of connection of the PVC route;
• a PVC route searching means for searching a plurality of PVC routes;
• a recovery event analyzing means for receiving a recovery information from the recovery notifying means through the communication network when the fault recovered at any one of network elements, and analyzing the recovery information from the recovery notifying means;
• a previous route defining means for defining a route before alternation;
• and
• a recovery processing means for recovering the route.

A network management system connected to a plurality of network elements provided on a permanent virtual channel (PVC) route through a predetermined communication network, each network element including an element data collecting means and a fault notifying means, the system comprising:

• an ATM network resource managing means for managing resources included in the ATM network;
• a PVC connection managing means connected to the element data collecting means through the communication network for managing situation of connection of the PVC route;
• a PVC searching means for searching a plurality of PVC routes;
• a faulty event analyzing means for receiving a fault from the fault notifying means through the communication network when the fault occurs at any one of the network elements, and analyzing the fault;
• a sharing route defining means for previously defining a plurality of sharing routes for the PVC route;
• a sharing route processing means for selecting an alternate sharing route from among the plurality of sharing routes;
• and
• an alternate route processing means for switching a faulty route to the alternate route defined by the sharing route processing means when the fault occurs at any one of the network elements.