Guard Bands requirements for GMPLS controlled optical networks
Ericsson
Ericsson
Scuola Superiore S.Anna
Huawei Technologies
CTTC
The continuous increase of flexibility and bit rate in optical networks has higher and higher impacts on inter-channel effects (e.g. Cross-phase modulations). This effect leads to the introduction of Guard Bands between adjacent light paths in order to reduce the inter-channel detrimental effects. This document provides requirements for the devolpment of protocol extensions to support Generalized Multi-Protocol Label Switching (GMPLS) and Path Computation Element (PCE) management of Guard Bands.