network function virtualization ppt

Resets the file descriptor of the character device, andthe QEMU process receives it through a select call. qemu call Tap_send function, the network datagram through the e1000_receive function written to the network card buffer, then call PCI_DMA _write qemu_get_ram_ptr make a memory copy. In a virtual machine

. VLAN is a convenient way to isolate different types of traffic in a shared LAN infrastructure. Data centers use server virtualization in large quantities, and restrictions on the number of VLANs may cause problems. Especially when a large number of tenants need support and each tenant needs multiple VLANs. With the 802.1Q trunk link, you can expand VLANs in the data center to support the mobility of VMS, but this increases operating costs and comple

Why learn a network namespaceName spaceMany containers and virtualization technologies are dependent on the network namespace.Typical representatives of container virtualization technologies such as LXC, Docker. Neutron also uses the Linux network namespace.When virtual swit

TechnologyThe single Root I/O virtualization is a standard for sharing pci-e devices with virtual machines. Multi-use on network devices, in theory can also support other PCI devicesSR-Iov Technology is a hardware solution that provides a virtualization layer that bypasses the system from hardware, and allows no virtual functions to have separate memory addresse

kb. 4. remote Replication of virtual machines-Replication is a feature provided by vSphere 5.1 in many versions (originally part of vCenter Site Recovery Manager 5.0 ), A virtual machine that is running on one local ESXi host can be continuously copied to an ESXi host in another place. It will store the VM in a local cluster or on another platform, create a copy, and this data source will help you quickly restore the virtual machine. Compared with restoring a VM from backup data, restoring thro

The operating environment of the previous few posts is under IVM, IVM can be regarded as part of the Vios, or an extension to the Vios function, a IVM can only manage 1 physical servers, while the HMC is a one-to-many. In the case where the HMC is managing the physical server, the IVM feature in the Vios will be masked and its corresponding function will be taken over by the HMC.The following is a command t

RedHat announced its cooperation with NEC, a global leader in innovative IT, network and communication products and solutions, to jointly develop the NetworkFunctionsVirtualization and NFV functions, assists in providing the Red Hat Enterprise LinuxOpenStack platform solution with the NFV function of the Telecom grade. With the transformation of the business of communication service providers and the modern

The book "Internet Evolution" suggests that "the function and structure will be highly similar to the human brain, and will also have Internet virtual sensation, virtual motion." Virtual backbone. Virtual memory nervous system ", and mapped an Internet virtual brain structure diagram.According to this view, the most popular concept of the internet-------------Big data, cloud computing, Internet of Things, mobile n