The Cisco ASR 9001 is a compact, high-capacity provider edge router. It’s designed to deliver significant bandwidth in a relatively small 2-rack-unit form factor. This router is essential for service providers needing to handle high-density Ethernet aggregation and edge routing. It supports a variety of interfaces, including 10 Gigabit Ethernet, and is built to operate with the Cisco IOS XR operating system, known for its carrier-grade reliability.