Lossless adjustment method of the bandwidth of an ODUflex channel and ODUflex channel

摘要

In a source network node, a method of adjustment without loss of the bandwidth of an ODUflex channel, characterized in that the method comprises: obtaining (201), by the originating network node, information on the current state of the bandwidth the ODUflex channel through a network management system, and make a bandwidth reservation on the ODUflex channel; and, if the bandwidth reservation is successful: adjust (202), by the source network node, the number of time slots occupied by an ODUflex frame in a Higher Order Optical Channel Data Unit, HO ODU, on the output side of the source network node in an ODUflex channel; adjust (203), by the originating network node, the transmission rate of the ODUflex frame.