Cisco Content Services Gateway (CSG) is the ideal solution for service providers seeking to apply advanced processing of IP flows through dynamic application-layer content examination, subscriber service access control, and subscriber account balance enforcement. The Cisco CSG is a specialized line card designed for the Cisco Catalyst 6500 Series Switch and Cisco 7600 Series Router. It provides the capability for billing, service control, traffic analysis, and data mining in a highly scalable, fault-tolerant package.