The Cisco Nexus 7000 Series 48-Port Gigabit Ethernet Modules with XL Option are highly scalable modules designed for performance-driven, mission-critical Ethernet networks. The modules use the M1-XL forwarding engine, providing a throughput of up to 60 million packets per second (Mpps) and a large Forwarding Information Base (FIB) - making them ideal for deployment at an Internet exchange point (IXP), a service provider, or a large enterprise.