Cisco WS-X6716-10G-3CXL is a Catalyst 6500 Series 16-port 10 Gigabit Ethernet module that pairs the WS-X6716-10G-3C base card with a DFC3CXL distributed forwarding daughter card to deliver 16 10 GbE fiber interfaces. It supports up to 1 million routes and a 40 Gbps switch fabric when paired with DFC3CXL, enabling scalable L3 routing in large networks. The module requires an X2 backplane/optics and is intended for Catalyst 6500 chassis that support distributed forwarding, typically used for high-density server access, data-center interconnect, and backbone aggregation.
