The Cisco Coarse Wavelength-Division Multiplexing (CWDM) Gigabit Interface Converter (GBIC) Solution allows enterprise companies and service providers to provide scalable and easy-to-deploy Gigabit Ethernet services in their networks. The product set enables the flexible design of highly available multiservice networks. The Cisco CWDM GBIC Solution offers a convenient and cost-effective solution for the adoption of Gigabit Ethernet in campus, data center, and metropolitan-area access networks.The Cisco CWDM GBIC Solution enables enterprises and service providers to increase the bandwidth of an existing Gigabit Ethernet optical infrastructure without adding new fiber strands. The Cisco CWDM GBICs can be used in parallel with other Cisco GBICs on the same platform.