# US 12,119,995 B2 · Network management apparatus, method, and program

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- Number: US 12,119,995 B2
- Document ID: US12119995B2
- Status: Granted
- Kind: B2
- Application number: 17/433,111
- Filed: 2020-02-25
- Published: 2022-06-23
- Granted: 2024-10-15
- Earliest claimed: 2019-02-25
- Assignees: Nippon Telegraph and Telephone Corporation
- Applicants: Nippon Telegraph and Telephone Corporation
- Inventors: Masataka Sato; Kazuaki Akashi; Shingo Horiuchi; Kenichi Tayama; Kenji Murase; Kimihiko Fukami; Shohei Nishikawa
- Web page: https://patentgrep.com/patent/US12119995B2

## CPC

- H04L 41/0889: {Techniques to speed-up the configuration process}
- H04L 45/24: Multipath
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A network management device according to an embodiment includes: a path selection processing unit configured to perform path selection processing of selecting a path of a physical layer between a start point and an end point of a network based on a first entity stored in a first storage device configured to store the first entity, the first entity representing an entity of an information object of the network; and an entity generation processing unit configured to perform entity generation processing of generating a second entity of a logical layer corresponding to the path of the physical layer selected by the path selection processing unit based on a specification of the information object stored in a second storage device configured to store the specification.

## Claims

### Claim 1

A network management device comprising:
a processor; and
a storage medium having computer program instructions stored thereon, when executed by the processor, perform to:
select a path of a physical layer between a start point and an end point of a network based on a first entity stored in a first storage device configured to store the first entity, the first entity representing an entity of an information object of the network; and
generat a second entity of a logical layer corresponding to the path of the physical layer selected based on a specification of the information object stored in a second storage device configured to store the specification;
wherein the second storage device stores, as the specification of the information object, information that defines a relationship between the physical layer and a logical layer that is a lowest layer and a relationship among a plurality of the logical layers including the lowest layer; and
the computer program instructions further perform to
acquire, from the second storage device, a first specification of the logical layer that is the lowest layer defined as a higher layer than the physical layer in the path selected by the path selection processing unit,
acquire, from the second storage device, a second specification of a logical layer defined as a higher layer than the logical layer that is the lowest layer, and
generate the second entity of each logical layer corresponding to the path of the physical layer selected based on the first specification and/or the second specification that is acquired.

### Claim 2

A network management device comprising:
a processor; and
a storage medium having computer program instructions stored thereon, when executed by the processor, perform to:
select a path of a physical layer between a start point and an end point of a network based on a first entity stored in a first storage device configured to store the first entity, the first entity representing an entity of an information object of the network;
generate a second entity of a logical layer corresponding to the path of the physical layer selected based on a specification of the information object stored in a second storage device configured to store the specification;
maintain a relationship with a third entity in an identical layer or a next lower layer when the second entity of the logical layer corresponding to the path of the physical layer selected by the path selection processing unit is generated, and
generate the second entity of each logical layer corresponding to the path of the physical layer selected based on the held relationship.

### Claim 3

A network management method that is performed by a network management device, the network management method comprising:
performing path selection processing of selecting a path of a physical layer between a start point and an end point of a network based on a first entity stored in a first storage device configured to store the first entity, the first entity representing an entity of an information object of the network;
performing entity generation processing of generating a second entity of a logical layer corresponding to the path of the physical layer selected in the path selection processing based on a specification of the information object stored in a second storage device configured to store the specification, wherein the second storage device stores, as the specification of the information object, information that defines a relationship between the physical layer and a logical layer that is a lowest layer and a relationship among a plurality of the logical layers including the lowest layer;
acquiring, from the second storage device, a first specification of the logical layer that is the lowest layer defined as a higher layer than the physical layer in the path selected in the path selection processing;
acquiring, from the second storage device, a second specification of a logical layer defined as a higher layer than the logical layer that is the lowest layer; and
generating the second entity of each logical layer corresponding to the path of the physical layer selected in the path selection processing based on the first specification and/or the second specification that is acquired.

### Claim 4

A network management method that is performed by a network management device, the network management method comprising:
performing path selection processing of selecting a path of a physical layer between a start point and an end point of a network based on a first entity stored in a first storage device configured to store the first entity, the first entity representing an entity of an information object of the network; and
performing entity generation processing of generating a second entity of a logical layer corresponding to the path of the physical layer selected in the path selection processing based on a specification of the information object stored in a second storage device configured to store the specification
wherein the performing of the entity generation processing includes
maintaining a relationship with a third entity in an identical layer or a next lower layer when the second entity of the logical layer corresponding to the path of the physical layer selected by the path selection processing unit is generated, and
generating the second entity of each logical layer corresponding to the path of the physical layer selected in the path selection processing based on the maintained relationship.