METHOD FOR IMPROVING EFFICIENCY OF DATA TRANSMISSION IN AN OPTICAL TELECOMMUNICATION NETWORK IN WAVELENGTH MULTIPLEX AND OPTICAL TELECOMMUNICATION NETWORK, COMPUTER PROGRAM AND COMPUTER PROGRAM PRODUCT

摘要

A method is provided for more efficiently transmitting data in a wavelength division multiplex (WDM) optical telecommunication network of different optical wavelengths, the optical telecommunication network having a first parent network node, a second parent network node, and further a plurality of network elements. wherein the plurality of network elements comprises at least a first network element, wherein the optical telecommunication network comprises an optical transmission path comprising a plurality of optical transmission channels, wherein in a normal operating mode of the optical telecommunication network, the first higher-level network node and the first network element by means of an optical transmission channel of the optical transmission path and a first IP Interface of the first network element are connected to each other and / or the second parent network node and also the first network element also by means of an optical transmission channel of the optical transmission path and a second IP interface of the first network element, wherein the optical telecommunication network further comprises a further parent network node, the method comprising the step of, in an error fall mode of operation - instead of the first or second parent network node - The other parent network node and the first network element by means of the optical transmission path and either the first IP interface and / or the second IP interface of the first network element are interconnected.