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Registered METHOD FOR RESIZING NETWORK CONNECTION IN THE OPTICAL TRANSPORT NETWORK SUPPORTING PROTECTION SWITCHING
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METHOD FOR RESIZING NETWORK CONNECTION IN THE OPTICAL TRANSPORT NETWORK SUPPORTING PROTECTION SWITCHING
- Inventors
- Youn Ji Wook, Kim Kwangjoon, Lee Jong Hyun
- Application No.
- 13965788 (2013.08.13)
- Publication No.
- 20140050470 (2014.02.20)
- Registration No.
- 9136940 (2015.09.15)
- Country
- UNITED STATES
- Project Code
- 12VI1400, Terabit optical-circuit-packet converged switching system technology development for the next-generation optical transport network, Lee Jong Hyun
- Abstract
- There is provided a method for resizing a network connection in an optical transport network that supports protection switching and receives a flexible Optical channel Data (ODUflex(GFP)) signal. In addition, Hitless Adjustment of ODUflex(GFP) (HAO) procedure includes Suppress Bandwidth Resize (SBR) information that prevents a Bandwidth Resize (BWR) protocol from being initiated. Based on the SBR information, only the LCR protocol is executed at nodes located on a protection path for protection switching, except for the BWR protocol. On the other hand, both the LCR protocol and the BWR protocol are executed at nodes located on a working path.