A signaling-double-aggregation-based resource-efficient restoration scheme in GMPLS-controlled WSON

According to the analysis on current restoration mechanisms, a signaling-double-aggregation-based resource-efficient restoration (SDABRER) scheme is presented in this paper which realizes low restoration latency, low protocol overhead and high network resource efficiency concurrently by aggregating the generalized multi-protocol label switching (GMPLS) signaling operations twice according to the distribution characteristics of the services. Experimental results show that the SDABRER performs better than the local restoration and pre-planned restoration schemes in large-scale wavelength switched optical network (WSON) concerning the above three restoration performance metrics.