Method for resizing network connection in the optical transport network supporting protection switching
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United States of America Patent
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Sep 15, 2015
Grant Date -
Feb 20, 2014
app pub date -
Aug 13, 2013
filing date -
Aug 14, 2012
priority date (Note) -
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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.
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