Cisco end-to-end enterprise network solutions form the most comprehensive line of networking products available in the industry. From the branch office to the WAN and campus backbone, Cisco products are the leading choice of the enterprise.Network interfaces reside on modular interface processors, which provide a direct connection between the CyBus and the external network, and support any combination of ATM, channelized T3, Ethernet, Fast Ethernet, FDDI, IBM channel attachment, multichannel E1 and T1, HSSI, synchronous serial, Token Ring, Packet OC-3 and Gigabit Ethernet interfaces.