network virtualization for dummies

I. Creating and managing virtual machines using Virt-manager 1. Use the VNC Viewer connection to enter the virtualization platform host 2. Open the terminal input Virt-manager command to start the Virt-manager Virtual Machine management interface #virt-manager 3. Install CentOS 6.6 virtual machines via Virt-manager Click on the icon to create a new virtual machine: Choose PXE boot, there is a system Automation deployment server in My

group, by default, these different broadcast domains are isolated from each other. To communicate between different broadcast domains, you need to pass one or more routers. Such a broadcast domain is called a VLAN.What is a VLAN?Virtual LAN; LAN is the range of nodes that the broadcast frame can reach, that is, the scope of direct communication;How VLANs are divided:Based on MAC addressSwitch Port-based implementationBased on IP address implementationBased on user implementationType of Switch i

Competition for network virtualization technology of four major hosts in the data center Since it is the virtualization of the host network, it is actually the virtualization of network functions on the server. Server vendors who

In the previous two articles: Network virtualization flowvisor: Network virtual layer (top) and network virtualization Flowvisor: The network virtual layer (middle) respectively introduced the characteristics and implementation of

The purpose of a data center is only to deploy applications. Applications deployed have automated business processes that better serve customers and enter the new market ...... You understand my consciousness. These are all about applications. Server Virtualization An application consists of computing resources and network resources. Both are indispensable; they are symbiotic. However, in the past few deca

This month, Nicira Networks suddenly released a new network virtualization architecture and software, announcing the success of copying VMware in the server field. The company has been carefully planning its own development. After four years of operation, it not only released a network virtualization platform, but also

Server virtualization is becoming more and more common, and many companies are trying to run their existing business in a virtualized way--virtual multiple instances on a physical server, each isolated from each other as if they were using a real host, and so is network virtualization. Several network environments are

With the increasing demand for application integration, more and more users hope to improve resource utilization by integrating or sharing physical assets. The pooling of physical resources in the data center can not only increase by 50% ~ 60% utilization, and rapid deployment and re-deployment of resources, while also reducing physical equipment, cables, space, power, cooling, and other needs, it can meet the rapidly changing business development needs. The

With regard to the virtualized network of Windows Server, the previous configuration changes that occurred at the operating system level were described. Some of these configurations are implemented through widgets provided by Windows Server, such as the configuration of NIC groups, and some require server roles such as Hyper-V to install Windows Server, and then through Hyper-V Manager or its command-line tool to configure the virtual switch. But for

Network virtualization-FlowVisor: Network Virtual Layer (medium) 1. Concepts understanding and review As mentioned in the previous blog, slice is defined as an instance of a virtual network, and a sliced stream can be considered as a sub-space of the whole geometric space consisting of headers of all possible data pac

This article provides a brief overview of the 4 major virtualization IO models used by VMware, Redhat, Citrix, and Microsoft major virtualization vendors (emulation, para-virtualization, pass-through, SR-Iov). Mainly for everyone to go through, the information is relatively large, organizational layout is limited, crossing will look at the point.Network I/O is no

Virtualization can be relatively familiar with computational abstractions, perhaps with the experience of using a single machine such as Virtual PC or virtual box. The first impression of using these virtualization software is that our CPUs can run multiple sets of different operating systems at the same time, and that the application runs in parallel. The abstraction of computation allows the operating sys

Virtualization can be relatively familiar with computational abstractions, perhaps with the experience of using a single machine such as Virtual PC or virtual box. The first impression of using these virtualization software is that our CPUs can run multiple sets of different operating systems at the same time, and that the application runs in parallel. The abstraction of computation allows the operating sys

Several virtual NICs related to Linux Network virtualization-VETH/MACVLAN/MACVTAP/LANLinux Nic drivers contain many "virtual NICs ". Earlier articles have analyzed in detail virtual network adapters such as tun and ifb. Similar ideas: Under the trend of virtualization, the Linux source code tree is constantly increasin

Diagram of several virtual NICs related to Linux Network virtualization-VETH/MACVLAN/MACVTAP/LAN,-vethmacvlanLinux Nic drivers contain many "virtual NICs ". Earlier articles have analyzed in detail virtual network adapters such as tun and ifb. Similar ideas: Under the trend of virtualization, the Linux source code tree

Linux has a lot of "virtual network cards" in the driver. Earlier articles once detailed analysis of TUN,IFB and other virtual network cards, similar ideas, in the virtualization of the trend of the big line, the Linux source tree in the growing "network virtualization" supp

Fully integrated network virtualization technology (1) Server virtualization technology changes CPU, memory, disk, I/O, and other hardware into a "resource pool" that can be dynamically managed, thus improving resource utilization and making IT more adaptable to business changes. IT systems are composed of network ser

Linux Network virtualization-gre vpn network method, grevpn This article does not detail gre and vpn principles. This section describes how to use the Linux gre virtual network device to implement your own vpn network.1. Requirements Assume that the requirements are as fol

Virtualization has brought a lot of gifts to the IT department. It makes it impossible not only to become possible, to become more popular. From server consolidation to cloud computing, virtualization is currently the dominant computing platform in the world. In addition to expanding computing power, virtualization is also considered a way to increase

After completing this course, you will be able to: Describe the basic concepts of NFV Understand the development trend of NFV network technology Understanding the NFV Architecture Describe the relationship between NFV and SDN Understand the key capabilities of NFV Traditional carrier networks evolve to NFV Study Questions and retrieval What is NFVThe definition from Huawei: NFV,