Hands-On Network Device Virtualization With VRF (Virtual Routing and Forwarding)

Virtual Routing and Forwarding (VRF) is a technology that allows multiple instances of IP (Internet Protocol) routing table to co-exist within the same Router at the same time. The routing instances are independent, allowing the same or overlapping IP addresses to be used without conflict. Using VRF technology, users can virtualize a network device from a Layer 3 standpoint of creating different “Virtual Routers” in the same physical device. Internet Service Providers (ISP) often use VRF technology to create separate routing table in a single physical Router which are completely isolated one from the others. This chapter discusses about the configuration of VRF-Lite in GNS3 (Graphical Network Simulator-3) on RIP/v2, EIGRP and OSPF protocols.

Virtual Network With Virtual Router/Firewall Using Endian Firewall Community (EFW)

With Open source virtualization software like VMware Player and Virtualbox, it is easy to install and run Virtual machines (VMs) in a home desktop computer. Endian Firewall provides a service called VPN (Virtual Private Network); it offers a secure communication between two different networks by using internet connection. In this chapter, we will install an Endian Firewall Community OS in one of the virtual machines (VM) and network it with the other VM for creating a firewall/router/proxy/VPN.

An Insight Into Openstack

OpenStack is a cloud operating system that controls large pools of compute, storage, and networking resources throughout a data center. All of the above components are managed through a dashboard which gives administrators control while empowering their users to provision resources through a web interface. OpenStack lets users deploy virtual machines and other instances which handle different tasks for managing a cloud environment on the fly. It makes horizontal scaling easy, which means that tasks which benefit from running concurrently can easily serve more or less users on the fly by just spinning up more instances.

Hands-On Vagrant

A vagrant is a freeware tool that facilitates to easily manage and configure multiple virtual machines. The main goal of its creation is to simplify the environment maintenance in a large project with multi technical tasks. It provides the better manageability and maintainability for the developers and prevents needless maintenance and improve the productivity for development using simple functions. Vagrant supports almost all main languages for the development, but it is written in the Ruby language. Vagrant was initially supported by Virtual Box, but the version 1.1 has the full vital support for VMware, KVM and other virtualization environment as well as for the server like Amazon EC2. It supports many programming languages such as C#, Python, PHP and JavaScript to enhance the project efficiency. Recently, version 1.6 may serve as a fully virtualized operating system due to the added support for Docker containers.

Fog Computing and Virtualization

The essence of Cloud computing is moving out the processing from the local systems to remote systems. Cloud is an umbrella of physical/virtual services/resources easily accessible over the internet. With more companies adopting cloud either fully through public cloud or Hybrid model, the challenges in maintaining a cloud capable infrastructure is also increasing. About 42% of CTOs say that security is their main concern for moving into cloud. Another problem which is mainly problem with infrastructure is the connectivity issue. The datacenter could be considered as the backbone of cloud computing architecture. As the processing power and storage capabilities of the end devices like mobile phones, routers, sensor hubs improve we can increasing leverage these resources to improve your quality and reliability of services.

Applications of Virtualization Technology in Grid Systems and Cloud Servers

Grid systems and cloud servers are two distributed networks that deliver computing resources (e.g., file storages) to users' services via a large and often global network of computers. Virtualization technology can enhance the efficiency of these networks by dedicating the available resources to multiple execution environments. This chapter describes applications of virtualization technology in grid systems and cloud servers. It presents different aspects of virtualized networks in systematic and teaching issues. Virtual machine abstraction virtualizes high-performance computing environments to increase the service quality. Besides, grid virtualization engine and virtual clusters are used in grid systems to accomplish users' services in virtualized environments, efficiently. The chapter, also, explains various virtualization technologies in cloud severs. The evaluation results analyze performance rate of the high-performance computing and virtualized grid systems in terms of bandwidth, latency, number of nodes, and throughput.

Hands-On Guide to Virtual Box

VirtualBox is a cross-platform virtualization application. What does that mean? For one thing, it installs on your existing Intel or AMD-based computers, whether they are running Windows, Mac, Linux or Solaris operating systems. Secondly, it extends the capabilities of your existing computer so that it can run multiple operating systems (inside multiple virtual machines) at the same time. So, for example, you can run Windows and Linux on your Mac, run Windows Server 2008 on your Linux server, run Linux on your Windows PC, and so on, all alongside your existing applications. You can install and run as many virtual machines as you like—the only practical limits are disk space and memory.

OpenGL® API-Based Analysis of Large Datasets in a Cloud Environment

Modern applications for analysing 2D/3D data require complex visual output features which are often based on the multi-platform OpenGL® API for rendering vector graphics. Instead of providing classical workstations, the provision of powerful virtual machines (VMs) with GPU support in a scientific cloud with direct access to high performance storage is an efficient and cost effective solution. However, the automatic deployment, operation and remote access of OpenGL® API-capable VMs with professional visualization applications is a non-trivial task. In this chapter the authors demonstrate the concept of such a flexible cloud-like analysis infrastructure within the framework of the project ASTOR. The authors present an Analysis-as-a-Service (AaaS) approach based on VMware™-ESX for on demand allocation of VMs with dedicated GPU cores and up to 256 GByte RAM per machine.

Mobile Cloud Computing Integrating Cloud, Mobile Computing, and Networking Services Through Virtualization

Mobile computing is a critical technology area which is actively integrated with field of cloud computing. It is broadly an application of virtualization technology at both ends of client server architecture. The mobile and cloud computing is a natural combination as mobile devices have limited computing and storage capacity, thus to reap the benefits of high end computing, cloud is the answer. Thus, amalgamation of mobile platform with cloud platform is inevitable. This chapter shall deliberate on the various aspects of mobile computing, mobile cloud computing and its relationship with virtualization technology. The detailed integration aspects and virtualization shall be signified through case study and suitable real time examples. The chapter shall envisage a case study, modeling the virtualization in the context of mobile cloud.

Hands-On Xen

Xen is an open source virtualization framework in distributed system based on rapid elasticity on broad network access. It is a cost-effective platform for resource pooling and allows easy access to run any code any time from everywhere by any user. It is a hypervisor using a microkernel design, provides services that allow multiple operating systems to execute on the same computer concurrently. In other words, the hypervisor was made accessible to the world directly from any location, anticipating a fully virtualized cloud base environment, which is turned into cloud computing.