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US-12184500-B1 · Dec 31, 2024 · US
Method and apparatus for automatic discovery in optical transport networks
US9203540B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9203540-B2 |
| Application number | US-201013394897-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 13, 2010 |
| Priority date | Sep 14, 2009 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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In order to improve the link adjacency discovery in an Optical Transport Network, a method and related network nodes are provided. A first network node ( 21 ) has a first discovery agent ( 216 ) and a second network node ( 22 ) has a second discovery agent ( 226 ). A discovery message ( 210 ) is transmitted from a first interface of the first network node ( 21 ) over one or more subsequent network links ( 25, 26, 27 ) to a second interface of the second network node ( 22 ). The discovery message ( 210 ) contains information indicative of an discovery agent identifier associated with the first discovery agent ( 216 ) and of a termination connection point identifier associated with the first interface. In order to transmit the discovery message ( 210 ), the first interface is configured to perform a tandem connection source function ( 217 ) using a reserved field in an overhead portion of signal frames to be transmitted. The second interface is configured to perform a Tandem Connection Monitoring function ( 227 ) on the same reserved field of received signal frames. The discovery message is sent using a Trail Trace Identifier (TT!) byte available in the reserved field.
First claim
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The invention claimed is: 1. A method for supporting automatic Layer Adjacency Discovery in an Optical Transport Network between a first network node having a first discovery agent and a second network node having a second discovery agent; the method comprising transmitting a Layer Adjacency Discovery message from a first interface of the first network node over one or more subsequent network links of said Optical Transport Network to a second interface of the second network node…
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Frequently asked questions
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- What does patent US9203540B2 cover?
- In order to improve the link adjacency discovery in an Optical Transport Network, a method and related network nodes are provided. A first network node ( 21 ) has a first discovery agent ( 216 ) and a second network node ( 22 ) has a second discovery agent ( 226 ). A discovery message ( 210 ) is transmitted from a first interface of the first network node ( 21 ) over one or more subsequent netw…
- Who is the assignee on this patent?
- Beller Dieter, Alcatel Lucent
- What technology area does this patent fall under?
- Primary CPC classification H04L41/12. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 01 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).