The Cisco XR 12000 Series routers accelerate the service provider evolution toward IP Next-Generation Networks, combining the unparalleled innovation of Cisco IOS XR Software with the investment protection of the market-leading Cisco 12000 Series.The Cisco XR 12406 Router is a 6-slot, 10-Gbps-per-slot chassis that delivers 120 Gbps of switching capacity in a compact 1/4-rack form factor. The Cisco XR 12406 offers secure virtualization, continuous system operation, and multiservice scale, enabling next-generation IP/MPLS networks.