Effect analysis apparatus for analyzing network failure

An effect analysis apparatus for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, comprising:

• a storage device for storing real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path;
• and
• a processing device for extracting a line housed by a real path being affected by the network failure by referring to the real path constitution information.

A computer readable storage medium storing a program for a computer for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, wherein the program allows the computer to execute the processes of extracting virtual paths housed by a real path being affected by the network failure by reading, from a storage device, real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path;

• reading, from the storage device, dual route information for indicating combinations of virtual paths corresponding to the plurality of routes;
• and
• extracting a line housed by one of the extracted plurality of virtual paths by reading, out of the storage device, virtual path constitution information for indicating a line housed by each virtual path, if the extracted plurality of virtual paths identify with the combinations of virtual paths.

A computer readable storage medium storing a program for a computer for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, wherein the program makes the computer execute the processes of

• extracting a line housed by a real path being affected by the network failure by reading, from a storage device, real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path.

An effect analysis method for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, comprising the steps of

• storing real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path, virtual path constitution information for indicating a line housed by each virtual path and dual route information for indicating combinations of virtual paths corresponding to the plurality of routes;
• and
• extracting virtual paths housed by a real path being affected by the network failure by referring to the real path constitution information and extracting a line housed by one of the extracted plurality of virtual paths by referring to the virtual path constitution information, if the extracted plurality of virtual paths identify with the combinations of the virtual paths which are contained in the dual route information.

An effect analysis method for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, comprising the steps of

• storing real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path;
• and
• extracting a line housed by a real path being affected by the network failure by referring to the real path constitution information.

A carrier signal for carrying a program for a computer for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, wherein the program makes the computer execute the processes of extracting virtual paths housed by a real path affected by the network failure by reading, from a storage device, real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path;

• reading, out of the storage device, dual route information for indicating combinations of virtual paths corresponding to the plurality of routes;
• and
• extracting a line housed by one of the extracted plurality of virtual paths by reading, from the storage device, virtual path constitution information for indicating a line housed by each virtual path, if the extracted plurality of virtual paths identify with the combinations of virtual paths.

A carrier signal for carrying a program for a computer for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, wherein the program allows the computer to execute the processes of

• extracting a line housed by a real path being affected by the network failure by reading, from a storage device, real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path.

An effect analysis apparatus for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, comprising:

• a storage unit for storing real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path, virtual path constitution information for indicating a line housed by each virtual path and dual route information for indicating combinations of virtual paths corresponding to the plurality of routes;
• and
• a processing unit for extracting virtual paths housed by a real path affected by the network failure by referring to the real path constitution information and extracting a line housed by one of the extracted plurality of virtual paths by referring to the virtual path constitution information, if the extracted plurality of virtual paths identify with the combinations of the virtual paths which are contained in the dual route information.

An effect analysis apparatus for identifying a customer line affected by a network failure in a communication network including a plurality of routes connecting two nodes, comprising:

• a storage unit for storing real path constitution information for indicating a virtual path and a line both of which are housed by each real path constituting the communication network, by regarding each of the plurality of routes as a virtual path;
• and
• a processing unit for extracting a line housed by a real path being affected by the network failure by referring to the real path constitution information.