Transparent optical networks will play an important role in the near future
. The aim of this work is to provide a simplified design approach how to ut
ilize the new feature "optical transparency" in WDM based optical networks.
Therefore optical nodes and transmission links are characterized and a set
of simplified parameters and rules describing the transparent sub-networks
is presented. In this way the complexity originating from physical constra
ints is reduced substantially, simplifying the management of these optical
networks and the physical parameters which will be implemented in the routi
ng protocols. This contribution is a compendium of results of the BMBF KomN
et project in the field of optical networks optimisation.