Spare capacity modelling and its applications in survivable iP-over-optical networks

摘要: As the interest in IP-over-optical networks are becoming preferred core network architecture, survivability has emerged as a major concern for service providers; result of potentially huge traffic volumes that will be supported by optical infrastructure. Therefore, implementing recovery strategies is critical. In addition to traditional schemes based around protection and restoration mechanisms, pre-allocated represents potential candidate effect maintain resilience under failure conditions. Preallocated technique particularly interesting because it provides trade-off terms performance resources between schemes. this paper, investigated single dual-link failures considering distributed GMPLSbased IP/WDM mesh network. Two load-based spare capacity optimisation methods proposed paper; Local Spare Capacity Optimisation (LSCO) Global (GSCO).