The Juniper Networks QFX5220 is fixed-configuration spine-and-leaf switch. It offers flexible, cost-effective, high-density interfaces for server and intra-fabric connectivity, and delivers a versatile, future-proofed solution for today's data centers. QFX5220 switches support advanced layer 2, layer 3, and MPLS features. For large public cloud providers - early adopters of high-performance servers to meet explosive workload growth - the QFX5220 supports very large, dense, and fast IP fabrics based on proven Internet scale technology.