Apparatus and method for selecting a channel to be set to a path in a communication network
AssigneeFujitsu Limited
InventorsMineshi NAKASHIMA, Yasuko Nozu
Life of this patent
Estimating the term…
Abstract
An apparatus stores information identifying unallocated channels for each of spans, where a span indicates a section between adjacent nodes of a plurality of nodes in a communication network. The apparatus extracts unallocated channels for each of all spans provided between a start point node and an end point node of a path in the communication network, by referring to the information, and determines a channel including consecutive unallocated spans which are arranged on routes including the path and spans outside the path, and whose number is minimum among the extracted unallocated channels, as a channel to be set to the path.
Claims6
An apparatus for designing a communication network, the apparatus comprising:
- a memory configured to store information identifying unallocated channels for each of spans, a span indicating a section between adjacent nodes of a plurality of nodes in a communication network;
- a processor configured:
- to extract unallocated channels for each of all spans provided between a start point node and an end point node of a path in the communication network, by referring to the memory, and
- to determine a channel including consecutive unallocated spans which are arranged on routes including the path and spans outside the path, and whose number is minimum among the extracted unallocated channels, as a channel to be set to the path.
A method performed by a computer, the method comprising:
- extracting unallocated channels for each of all spans provided between a start point node and an end point node of a path in a communication network, by referring to a memory configured to store information identifying unallocated channels for each of spans, a span indicating a section between adjacent nodes of a plurality of nodes forming the communication network;
- and
- determining a channel including consecutive unallocated spans which are arranged on routes including the path and spans outside the path, and whose number is minimum among the extracted unallocated channels, as a channel to be set to the path.
A system comprising:
- a network designing apparatus;
- and
- nodes configured to form a communication network, the nodes being connected in communication with the network designing apparatus, wherein
- the network designing apparatus is configured:
- to store information identifying unallocated channels for each of spans, a span indicating a section between adjacent nodes of a plurality of nodes in a communication network,
- to extract unallocated channels for each of all spans provided between a start point node and an end point node of a path in the communication network, by referring to the information,
- to determine a channel including consecutive unallocated spans which are arranged on routes including the path and spans outside the path and whose number is minimum among the extracted unallocated channels, as a channel to be set to the path, and
- to notify the nodes of the determined channel;
- and
- each of the nodes is configured to set the channel notified from the network designing apparatus to the path.
Dependencies are inferred from the claim text.