Disclosed is a method of reorganizing a wavelength division multiplexing
network using dynamic watermarks and a computer readable recoding medium
for storing a program for executing the same method. The reorganization
method of organizing a wavelength division multiplexing (WDM) network
using a dynamic watermark of the invention includes the steps a)
collecting load information for optical paths of the WDM network from
nodes on the optical paths; b) detecting optical paths having maximum
load and minimum load from the collected load information and computing a
maximum value and a minimum value based on the collected load
information; and c) resetting an upper watermark and a lower watermark
based on the maximum value and the minimum value.