Connectivity encompasses all WAN protocols used to create networks for Broadband Access, ATM, Frame Relay, X.25, ISDN, Dial, PPP, and Tunneling. In each of these areas, Cisco offers comprehensive protocol support that adheres to relevant standards. Cisco supplements this standards-based approach with a range of functionality, in order to integrate Layer 2 WAN Connectivity Protocols with key network functionality, including integrated security options, integrated quality of service techniques, simplified configuration techniques, integrated IP support, and hardware support ranging from simple CPE devices to high-end aggregation platforms. This combination of elements allows Cisco customers to use the broadest array of Connectivity options to meet their WAN needs and deliver superior network performance and value.