Carriers need to modernize their networks to handle growing bandwidth demands and support new services and applications. Legacy networks are costly to maintain, inflexible, and unable to meet current needs. Modernizing with Ethernet switching, programmable optical core networks, and network automation can simplify operations, improve performance, reduce costs, and future-proof the network to support scalable bandwidth growth and new business models. Ciena offers solutions to help carriers optimize their infrastructure and modernize their networks.