Method, apparatus and system for interconnected ring protection
US-9210037-B2 · Dec 8, 2015 · US
Method of switching optical transport network and node device
US8965197B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8965197-B2 |
| Application number | US-201213532047-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 25, 2012 |
| Priority date | Dec 28, 2009 |
| Publication date | Feb 24, 2015 |
| Grant date | Feb 24, 2015 |
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- Title
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Abstract
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A node device in an optical transport ring network including plural node devices connected in a ring form using plural optical transmission paths so that optical transport frames of a working line and a protection line are transmitted using the plural optical transmission paths, includes a control information transmitter, when a failure occurs in the optical transmission paths, transmitting the optical transport frame to an opposing node device as a transmission destination node in the optical transmission paths, the optical transport frame including switching control information; and a switcher receiving the optical transport frame including switching control information, the optical transport frame being transmitted to the node device as the transmission destination node, forming a loop back to fold a transmission path between the plural optical transmission paths, and switching the optical transmission path from the work line to the protection line.
First claim
Opening claim text (preview).
What is claimed is: 1. A node device in an optical transport ring network including plural node devices connected in a ring form using plural optical transmission paths so that optical transport frames of a working line and a protection line are transmitted using the plural optical transmission paths, the node device comprising: a control information transmitter configured to, when a failure occurs in an optical transmission path of the optical transmission paths, transmit the opt…
Assignees
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Classifications
Electricity · mapped topic
- H04L12/437Primary
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
Electricity · mapped topic
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Frequently asked questions
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- What does patent US8965197B2 cover?
- A node device in an optical transport ring network including plural node devices connected in a ring form using plural optical transmission paths so that optical transport frames of a working line and a protection line are transmitted using the plural optical transmission paths, includes a control information transmitter, when a failure occurs in the optical transmission paths, transmitting the…
- Who is the assignee on this patent?
- Shirai Katsuhiro, Takeguchi Koji, Honda Takashi, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification H04L12/437. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Feb 24 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).