Cisco offers a comprehensive range of pluggable optical modules for the Cisco ONS family of multiservice platforms. The wide variety of modules gives you flexible and cost-effective options for all types of client interfaces. Cisco offers a range of GBICs for Gigabit Ethernet use. a wide variety of SFP modules. XFP modules and has recently introduced SFP+. CXP and CFP pluggable modules. These small. modular optical interface transceivers offer a convenient and cost-effective solution for an array of applications in the data center. campus. metropolitan-area access and ring network. storage area network. and long-haul network.