Transmission quality determination method, transmission path selection method and network management system
AssigneeFujitsu Limited
InventorsTakehiro Fujita, Shigeru Ishii, Takuya Miyashita
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Abstract
There is provided a method of determining transmission quality of a path in an optical communication network system obtained by connecting a plurality of networks, the method including: acquiring a value representing transmission performance corresponding to a network condition of each of spans in the path in the optical communication network system; and determining the transmission quality of the path on the basis of the acquired value representing transmission performance corresponding to the network condition of each of spans.
Claims12
A method of determining transmission quality of a path in an optical communication network system obtained by connecting a plurality of networks, the method comprising:
- acquiring a value representing transmission performance corresponding to a network condition of each of spans in the path in the optical communication network system;
- and
- determining the transmission quality of the path on the basis of the acquired value representing transmission performance corresponding to the network condition of each of spans.
A method of selecting a single path connecting a start node and an end node specified in an optical communication network system obtained by connecting a plurality of networks, the method comprising:
- extracting all paths connecting the start node and the end node;
- acquiring a value representing transmission performance corresponding to a network condition of each of spans in each of the extracted paths;
- obtaining values representing transmission qualities of the extracted paths on the basis of the value representing transmission performance acquired for each of spans in each of the extracted paths;
- and
- selecting the single path on the basis of comparison of the values representing transmission qualities of the extracted paths.
A network management system for determining transmission quality of a path in an optical communication network system obtained by connecting a plurality of networks, the network management system comprising:
- a memory in which values representing transmission performance obtained under network conditions are stored, for each of the plurality of networks;
- and
- a processor configured to execute a procedure, the procedure comprising:
- acquiring, from the memory for each of spans in the path in the optical communication network system, a value representing transmission performance corresponding to a network condition of each of spans;
- and
- determining the transmission quality of the path on the basis of the acquired value representing transmission performance corresponding to the network condition of each of spans.
A network management system for selecting a single path connecting a start node and an end node specified in an optical communication network system obtained by connecting a plurality of networks, the network management system comprising:
- a memory in which values representing transmission performance obtained under network conditions are stored, for each of the plurality of networks;
- and
- a processor configured to execute a procedure, the procedure comprising:
- extracting all paths connecting the start node and the end node;
- acquiring, from the memory for each of spans in each of the extracted paths, a value representing transmission performance corresponding to a network condition of each of spans;
- obtaining values representing transmission qualities of the extracted paths on the basis of the value representing transmission performance acquired for each of spans in each of the extracted paths;
- and
- selecting the single path by comparing the values representing transmission qualities of the extracted paths.
Dependencies are inferred from the claim text.