'Institute of Electrical and Electronics Engineers (IEEE)'
Doi
Abstract
Large optical backbone networks may be composed of several domains, each one controlled by different
administrators/operators. Besides, the bandwidth granularity of these domains may be different. Label Switched
Paths (LSPs) provisioning in multi-domain/multi-operators/multi-layer network scenarios is a challenging
problem actually, which has to be properly faced. In this paper, some open issues related to end-to-end
bandwidth provisioning are discussed. Among others, the grooming problem in multi-layer/multi-domain optical
networks and the performance degradation of recovery mechanisms due to limited inter-domain knowledge are
analyzed.Postprint (published version
