Network, Virtual Local Area Networks ( Vlans )

Virtualization is a combination of software and hardware engineering that creates Virtual Machines (VMs) - an abstraction of the computer hardware that allows a single machine to act as if it were many machines, or a computer that does not physically exist as a piece of hardware. The hardware that is seen by the operating system is emulated in an effort to separate the physical hardware from operating system. This allows the virtual machine to be moved and hosted on any machine independent of hardware. Virtualization technology is possibly the single most important issue in IT and has started a top to bottom overhaul of the computing industry which is why many companies around the world have are using its softwares to enhance their business opportunities.

“Networks are all around us. They are in our walls, in the air. At schools, hotels, hospitals, even coffee shops. Always there, always on…This power exists today. In our routers. In our switches... . (Cisco, n.d.)

To overcome the problems mentioned above we can use the concept of authentication servers. These authentication servers are used to define the VLAN membership with the help of the user id rather than the older methods where MAC addresses or IP addresses are used. This greatly enhances the integration levels with the network operating system and provides more flexibility. The most valued advantage of the authentication servers is that the VLAN which the user uses can be carried anywhere without any respect to the workstation or

The hospital’s administrative network consists of Apple iMACS and thin computers that use 1000Base T with CAT 6 cables. All work stations belonging to Executive Management has Apple iMAC computers with 24” monitors, 2.4 GHz speed, 2 GB RAM, and a 500 MB hard drive. Human Resources, OPNS, and the Finance Senior Managers have Apple iMACS with 20” monitors, 2 GHz speed, and a 350 MB hard drive. All of the systems have OS virtualization and use the MAC Operating System X, Leopard, and Windows XP. OS virtualization allows separate, isolated virtual environments to be used on a single server. The MAC Operating System X is a UNIX system that is both simple and powerful. Leopard further enhanced the system by making it faster and more reliable. Windows XP is a product of Microsoft but it is able to be installed on any MAC using a native version of Microsoft Office. This way users are able to create documents using MS Word, make presentations using PowerPoint, and

VNC is stands for a Virtual Network Computing which is an open source platform for accessing desktop on remote machines with the help of LAN over a WAN or Internet connection. In this project discuss various methods of developing or building a virtual network with provides a good security to each one of them. VNC is platform independent so we can use any operating system such as UNIX, Windows, MAC OS x etc. It will also cover the open connection and tunneled connection of SSH (Secure Shell). In my project, I will apply technique to build a secure virtual network. In this present era there are many multinational company in the market company users are able to share their resources and applications without any kind of high level on software and hardware resources. Mobility is important in this fast peace world therefore the

When businesses provide computers for public use, several challenges are presented. In addition to allowing the general public this service, and ultimately growing their market share, a business must define the line between appropriate use and securing the network.

Network switches are deployed throughout the enterprise. They are used to distribute data and provide LAN connectivity to end users. Without the network switches, systems will not be able to communicate with servers and applications. All devices are managed. Managing network devices is critical to any organization. It allows

In the Future Corporation LAN, I have decided to some Virtual Area LAN Network (VLAN) for better performance, easier administration, less cost, and better security. There will be two VLANs for each department, total will be 26 VLANs. The first VLAN in each department will be only for the employees' department, and the second VLAN will be for the guests. I have decided to use static VLANs, so every port will be configured to be belong to a VLAN. I have selected static VLANs instead

VLANs or Virtual Local Area Networks are logical local area networks that extend beyond the traditional LAN architecture. Because a VLAN is a logical entity, creating and configuring a VLAN is done completely in software. The advantages to using this type of LAN include but are not limited to the ability to conserve the network resources, to bridge geographical drawbacks, and to better manage the movement of personnel and equipment. To understand the need for VLANs you must first understand the Local Area Network (LAN). The definition of a LAN started as a group of computers that were connected in the same area, but today’s LAN is defined as a single broadcast domain. This is explained easily by looking at a large organization where each department would be on a separate LAN found behind a router or switch. With today’s expanding networks it has become important for these

contains the case narrative, related figures, and a set of questions and problems. These do not have one unique solution. There are too many alternatives when dealing with LANs, WANs, MANs, BNs, and the Internet, so a reallife network design and development problem can have several workable answers.

Typical data centers can occupy from one room to a complete building. Most equipment are server-like mounted in rack cabinets. Servers differ in size from single units to large independently standing storage units which are sometimes as big as the racks. Massive data centers even make use of shipping containers consisting of 1000’s of servers. Instead of repairing individual servers, the entire container is replaced during upgrades.

In the last week, we just got an idea about the network configuration which we are going to implement in the organization. As per the requirement, we have to implement 150 cameras in the network. So we have to have huge bandwidth in our network to transfer the data from 150 cameras. By implementing the technology called Virtual Local Area Network (VLAN), we can save the bandwidth of our LAN.

A VLAN or virtual local area network connects departments, which are not connected physically. VLANs will be implemented while using the Trunking VLAN Protocol. To ensure that all departments are grouped together, they will use network assigned VLANs. The VLAN information is stored on the VTP server so that it is centrally located for easy maintenance. By grouping the departments together, the sales departments will all be connected with each other along with the administrative departments connected with each other. This gives the administrator an easier way to manage the data flow and increase security when needed. The network will also implement the Spanning Tree Protocol

Virtualization also minimizes the cost of maintaining a datacenter by reducing energy cost, minimizing server sprawl and eliminating under utilization. As BMG embarks on their expansion projects, new virtual machines can be deployed quickly to accommodate the additional capacity required to grow their infrastructure dynamically without expending an enormous amount of capital.

As this demand for dynamic and unpredictable data grows, more and more devices have to be added to existing networks and configured accordingly. The need of the hour is to regulate networks centrally and as a whole rather than configure individual network devices and gain more control to achieve flexibility in existing networks.