# US 8,787,770 B2 · Transport apparatus

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- Number: US 8,787,770 B2
- Document ID: US8787770B2
- Status: Granted
- Kind: B2
- Application number: 12/656,276
- Filed: 2010-01-22
- Published: 2010-06-03
- Granted: 2014-07-22
- Earliest claimed: 2007-08-14
- Assignees: Fujitsu Limited
- Applicants: Hideaki Arao
- Inventors: Hideaki Arao
- Web page: https://patentgrep.com/patent/US8787770B2

## CPC

- H04L 43/00: Arrangements for monitoring or testing data switching networks
- H04J 3/14: Monitoring arrangements {(for SDH/SONET rings H04J3/085)}
- H04L 41/0806: for initial configuration or provisioning, e.g. plug-and-play
- H04J 2203/0057: Operations, administration and maintenance [OAM]
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)

## Abstract

A transport apparatus includes a plurality of transport processing units. The transport processing unit transports optical signals on an optical network which controls, by transmitting or receiving the optical signals including control information, apparatuses that are managed on the basis of areas. The transport processing unit includes a setting-information storage unit that stores therein setting information indicating a group to which a plurality of apparatuses within the area belongs, a frame generating unit that, upon receiving the optical signal, determines on the basis of the setting information whether the control information is to be terminated or to be passed through itself, sets a destination depending on the result of the determination, and generates a frame including the control information, and a path switching unit that switches a path of the frame on the basis of the destination of the frame.

## Claims

### Claim 1

A transport apparatus comprising:
a plurality of transport processing units that transport a plurality of optical signals on an optical network and which control, by transmitting or receiving the optical signals including control information, apparatuses that are managed on the basis of areas, each transport processing unit including
a setting-information storage unit that stores therein setting information indicating a group to which a plurality of apparatuses within one of the plurality of areas belongs,
a frame generating unit that, upon receiving one of the plurality of optical signals, determines on the basis of the setting information whether the control information is to be terminated or to be passed through itself, sets a destination depending on the result of the determination, and generates a frame including the control information, and
a path switching unit that switches a path of the frame on the basis of the destination of the frame.

### Claim 2 (depends on 1)

The transport apparatus according to claim 1, wherein
the path switching unit comprises a function of a layer2 switch and switches the path of the frame on the basis of the destination set in the frame.

### Claim 3 (depends on 1)

The transport apparatus according to claim 1, wherein
the frame generating unit allots a logical channel to the frame.