With the exponential increase in usage of data and the creation of new applications,the demand for the highest throughput,lowest latency,virtualization and sophisticated data acceleration engines continues to rise. ConnectX-4 Lx EN enables data centers to leverage the world’s leading interconnect adapter for increasing their operational efficiency,improving servers’utilization,maximizing applications productivity,while reducing total cost of ownership (TCO). ConnectX-4 Lx EN provides an unmatched combination of 1,10,25,40,and 50GbE bandwidth,sub-microsecond latency and 75 million packets per second message rate. It includes native hardware support for RDMA over Converged Ethernet,Ethernet stateless offload engines,Overlay Networks,and GPUDirect Technology. Virtual Protocol Interconnect (VPI) adapter ConnectX-4 offers high throughput VPI adapter,supporting EDR InfiniBand and Ethernet and enabling any standard networking,clustering,or storage to operate seamlessly over any converged network leveraging a consolidated software stack. Virtualization ConnectX-4 SR-IOV technology provides dedicated adapter resources and guaranteed isolation and protection for virtual machines (VMs) within the server. I/O virtualization with ConnectX-4 gives data center administrators better server utilization while reducing cost,power,and cable complexity,allowing more Virtual Machines and more tenants on the same hardware. Overlay networks In order to better scale their networks,data center operators often create overlay networks that carry traffic from individual virtual machines over logical tunnels in encapsulated formats such as NVGRE and VXLAN. While this solves network scalability issues,it hides the TCP packet from the hardware offloading engines,placing higher loads on the host CPU. ConnectX-4 effectively addresses this by providing advanced NVGRE and VXLAN hardware offloading engines that encapsulate and de-capsulate the overlay protocol headers,enabling the traditional offloads to be performed on the encapsulated traffic. With ConnectX-4,data center operators can achieve native performance in the network architecture.