At present, with the rapid development of the information age, virtualization technology is widely used in computers. Virtualization uses software to redefine and divide it resources, and fully realizes high-performance applications such as dynamic allocation of IT resources and cross domain sharing. In fact, SR-IOV technology is a virtualization solution based on hardware, which can improve performance and scalability.
SR-IOV is an IOV specification of pci-sig. The purpose of SR-IOV is to provide a standard specification. It can virtualize the network controller of a PCIe into multiple PCIe devices, and each device can be directly assigned to a virtual machine, which allows efficient sharing of PCIe devices among virtual machines. Most importantly, it is implemented in hardware, and can obtain I / O comparable to the performance of the local machine Performance.
SR-IOV has a high stability performance, which can make up for the performance degradation and packet loss of the network card in the traditional network bridge mode when the network is unstable. On the basis of this performance, LR-LINK electronic devotes itself to research and development, and recently launched a domestic PCI Express v2.0 X4 dual port optical fiber Gigabit Ethernet network adapter, which supports pci-sig SR-IOV technology can support up to 8 VF (virtual machine) network cards. We compare the VF network card of SR-IOV in the virtual machine with vnic, and the VF network card of SR-IOV is superior to vnic in all aspects of performance. At the same time, in terms of cost, the network card can effectively reduce customer costs, simplify product layout and reduce switch ports.
At the same time, due to the use of home-made master controller configuration, the network card has completely independent intellectual property rights, belonging to the independent and controllable level. In terms of performance indicators such as data transmission, data network bandwidth, average transmission delay and actual packet transmission rate, the network card has reached the industry-leading level. At the same time, it is of great significance to break the foreign technology monopoly and ensure the national information security.
In addition, the network card also has other high performance advantages. In theory, the throughput can reach 2GB single port two-way communication transmission rate on the connection of the PCIe v2.0 X4 bus. At the same time, it can be compatible with PCIe X8 and x16, and downward compatible with PCIe v1.1. It has strong compatibility and can meet the different needs of customers.
This series of
network card products are widely used in industrial automation, data center
processing, network storage, cloud computing and other industries.