The Cisco 7200 VXR routers are the multiservice members of the Cisco 7200 series routers. The Cisco 7200 VXR routers are designed to support gigabit capabilities & to improve data, voice, & video integration in both service provider & enterprise environments. The Cisco 7200 VXR routers incorporate an integrated Multiservice Interchange (MIX) capability to support future voice applications. MIX interconnections on the midplane provide the ability to switch DS-0 time slots between multichannel T1 or E1 interfaces, much like a digital cross-connect or an add-drop multiplexer. This feature enables the Cisco 7200 VXR routers to switch DS-0 voice channels on a T1 or E1 interface from one voice processing port adapter to another voice processing port adapter. It also enables DS-0s to be switched through the Cisco 7200 VXR routers without any processing, a requirement in certain voice configurations. The Cisco 7200 VXR routers support a high-speed network services engine (NSE) as well as the high-speed network processing engine. The Cisco 7206VXR supports multiprotocol, multimedia routing & bridging with a wide variety of protocols & port adapter combinations available for 7200 series routers. In addition, the Cisco 7206VXR midplane provides increased support for multiple high-bandwidth port adapters.