Product Brief Intel Ethernet 500 Series Network Adapters Intel Ethernet Server Adapter X520 for OCP Delivers proven reliable 10GbE performance and ultimate flexibility and scalability for Cloud deployments Key Features Overview The Open Compute Project (OCP) is a Facebook initiative to openly share OCP Mezzanine Card v2.0, Type 1 custom data center designs to improve cost and energy efficiency across Dual and Single Port 10GbE SFP+ the industry. OCP uses a minimalist approach to system design thereby PCI Express (PCIe) 2.0 x8 reducing complexity and cost, allowing data centers to scale out more effectively. Receive Side Scaling (RSS) for UDP for VxLAN Intel Data Direct I/O (Intel DDIO) This OCP adapter delivers the capabilities of the Intel Ethernet Converged for intelligent offloads Network Adapter X520 (performance, low-latency and flexibility) in an Open Compute Project Mezzanine Card v2.0 form factor. Intel Ethernet Flow Director for hardware based application traffic steering Increased I/O performance with Intel Data Direct I/O Technology (Intel Intel Virtualization Technology for DDIO) and support for intelligent offloads make this adapter a perfect connectivity (Intel VT-c) match for scaling performance on servers with Intel Xeon processors E5 and E7.conjunction with virtualization optimized drivers, Optimized for Multi-core Processor Servers PCI-SIG Single Root I/O Virtualization and Sharing Intel Ethernet Flow Director (SR-IOV) can be used to help reduce I/O bottlenecks, Data centers depend on the multiprocessing, high and improve the overall server performance. performance capability of servers to increase system Hypervisor BYPASS using SR-IOV throughput, responsiveness, and reliability through Bypassing the hypervisor and allowing direct the introduction of additional hardware threads, hardware access by virtual machines, reduces CPUs, or cores. But in a multiprocessing environment, CPU overhead and latency, and increases network it is essential to ensure a coordinated affinity of throughput. Most hypervisor releases are enabled protocol processing and network applications on the to partition a single physical controller into multiple same target cores. This affinity significantly reduces virtual controllers. Virtual controllers, known as contention for shared resources, minimizes software Virtual Functions (VF), use the PCI-SIG SR-IOV synchronization overheads between cores, and standard to enable additional QoS features in enhances cache efficiency. the controller silicon to manage and direct traffic Receive Side Scaling (RSS) resolves the single- isolation, port partitioning with bandwidth allocation, processor bottleneck by enabling the receive side and on-chip VF-VF switching. network load from a network adapter to be shared across multiple cores. RSS enables packet receive-processing to scale with the number of available cores. Intel Ethernet Flow Director (Intel Ethernet FD) and the Application Target Routing (ATR) service is an advanced network offload technology that provides the benefits of parallel receive processing in multiprocessing environments that automatically steer incoming network data to the same core on which its application process resides. These technologies preserve the traffic flow > Core (application) relationship. As a result, Intel Ethernet FD and ATR can significantly lower latency and improve CPU usage. Intel Ethernet FD enables administrators to define signature filters. The ATR service uses these filters to ensure that all packets in a TCP flow are processed by a single core. This intelligent offload capability supports advanced filters that direct receive packets by their flows to different queues, and enables tight control on routing a flow in the platform. It matches flows and CPU cores for flow affinity and supports multiple parameters for flexible flow classification and load balancing. Best Choice for Virtualization Intel leads the industry in virtualization by being the first to provide virtualization for all the major operating systems, and for working with the OEMs to implement virtualization on the adapter, and on the platform. Intel Virtualization Technology for connectivity (Intel VT-c) Intel VT-c delivers virtualized I/O performance optimizations and Quality of Service (QoS) features designed directly in the controller silicon. Working in 2 2