The holding company that owns NDAS has just purchased a regional trucking compan
ID: 3840148 • Letter: T
Question
The holding company that owns NDAS has just purchased a regional trucking company called Sunshine Trucking (ST). NDAS believes that ST offers a way to build revenues in an area in which it has experience (package delivery), even though ST will not operate directly with NDAS. ST focuses on large commercial shipments (e.g., food products for wholesalers, packaged goods for department stores). At present, ST has a very poor data communications network. Because you have done such a good job on the NDAS network, President Coone offers your expertise to ST to help with their new network. ST operates three regional shipping hubs: Miami, Dallas, and Atlanta. Each of these regional hubs is responsible for taking shipping requests from customers and scheduling pickups and deliveries. Each regional hub has about four dozen computers are networked to each other using a small LAN and need to be connected onto a WAN. The computers access the network server (a Windows NT file server) and the corporate minicomputer (see below) almost constantly. The current LAN is a 10 Mbps Ethernet that is beginning to become overloaded with the network traffic. The regional hubs communicate with one another fairly regularly via a VPN connection, usually a dozen times an hour. The Atlanta hub also houses the corporate head office and therefore has an additional 20 computers for use by corporate staff. This office also has the corporate minicomputer that processes all accounting data (a UNIX computer). There has been some discussion about establishing a corporate Web site, but no plans have been made. ST has a series of seven local offices for short-term storage, truck maintenance, and managing the local drivers: Houston, New Orleans, J ackson, Birmingham, Tallahassee, Charlotte, and Memphis. Each regional office has 5 to 10 computers that are peer networked together but need to be connected to the WAN. These computers have fairly minimal networking requirements. At present, each local office sends data to the corporate minicomputer at the end of each day by sending one diskette via overnight courier (NDAS). ST would like to automate this process so that it can transmit the data via a network. ST also would like to enable the local offices to communicate with all the regional hubs (and perhaps with one another) but do not anticipate needing to send a large amount of data. Exercises 1. Based on your assessment of the large number of changes that need to occur, you quickly realize that you don’t have the time to design and implement the new network yourself. Thus, you suggest that a vendor help with this project. Being a nice guy though, you volunteer to create an RFP which will be sent ou t to some local networking vendors for their consideration. create an RFP for ST’s new network
(1) Background information with subsections for Organizational profile, Overview of current network, Overview of new network, and Goals of new network,
2) Network requirements with subsections for Choice sets of possible network designs (hardware, software, circuits), Mandatory, desirable, and wish-list items, Security and control requirements, Response-time requirements, and Guidelines for proposing new network designs,
3) Service requirements with subsections for Implementation time plan, Training courses and materials, Support services (e.g., spare parts on site), and Reliability and performance guarantees,
4) Bidding process with subsections for Time schedule for the bidding process, Ground rules, Bid evaluation criteria, and Availability of additional information
5) Information required from vendor with subsections for Vendor corporate profile, Experience with similar networks, Hardware and software benchmarks). Keep in mind that you need to think about their network at the LAN, MAN, WAN, and BN levels.
Explanation / Answer
The characteristics of Network in order to convince the business are :
Generation 2 Virtual Machines : Virtual machine generation determines the virtual hardware and functionality that is presented to the virtual machine. Network in Server includes two supported virtual machine generations i.e Generation 1 and Generation 2.These new Generation 2 VMs are built exclusively to be run only as VMs. They leave all the legacy VM belongins behind. The new VMs are UEFI-based. They can boot off network adapters. These can run only the Windows 8.The most forward-thinking enhancement in Server 2012 R2 Network is the new Generation-2 virtual machines.There’s no BIOS and no legacy devices. When creating a new virtual machine in Network Manager you need to specify a virtual machine generation.
Storage Quality of Service: Network in Server includes storage Quality of Service.Storage QoS enables you to manage storage throughput for virtual hard disks that are accessed by your virtual machines.Server Network introduces the ability to provide Quality of Service for storage. Storage Quality of service gives you the ability to control back I/O-intensive Virtual Machines, making sure that one or two overly active VMs don’t take the greatest share of the host storage subsystems.Storage QoS enables you to specify the maximum and minimum I/O loads in terms of I/O operations per second for each virtual disk in your virtual machines.
Improvements To Network :
Live Migration: Network live migration has been updated to allow the administrator to select the optimal performance options when moving virtual machines to a different server.New Network release also features two ways to achieve live migrations. First, it enables the VM memory and data to be compressed when performing the live migration. This compression can enable up to a 2x performance improvement for live migration.Network administrators can configure the appropriate live migration performance options based on their environment and requirements.
Live VM Export :Network is updated to support exporting a virtual machine or a virtual machine checkpoint while the virtual machine is running. It is no longer need to shut down a virtual machine before exporting.The new Network also provides the ability to perform live exports of running VMs. This feature can help you more easily clone and move VMs. The export process takes a snapshot of the VM’s current state.Exporting a virtual machine while the virtual machine is running allows the administrator to export the virtual machine without incurring any downtime.The Export option is now available as an action for a running virtual machine from Network Manager.
Extended Replica : In extended replication,replica server forwards information about changes that occur on the primary virtual machines to a third server . After a planned or unplanned failover from the primary server to the Replica server, the extended Replica server provides further business continuity protection. As with ordinary replication, you configure extended replication by using Network Manager. Network Replica is one of the most popular features in Server . With Server Network, you can now replicate a target VM that has been replicated from another Network instance. This allows a hosting company that might be acting as a Network Replica target to back up or replicate the VM for redundancy. Addition to these Server Network lets you control the interval by which the replication logs are sent from the source to the replica target.The frequency of replication, which previously was a fixed value, is now configurable. You can also access recovery points for 24 hours.
Network for 60 plus workstations with 30 plus or more on each floor in bulilding is possible by using Ethernet.There are many commonly used ethernets such as 10BaseT,10 BaseF,10Base2 etc.Let us use 10BaseT for our network plan.This includes uses four-pair UTP wire using connectors. Each cable is connected from each network device to a central hub in a physical star topology. Within the hub, the signals are repeated and forwarded to all other nodes on the network because it is a logical bus topology. Old NIC's are configured with jumpers to set addresses and interrupts.Network interface cards can be managed through a program, or automatically configure themselves through plug and play technology. There is a limit of 1024 devices on an Ethernet segment, plus you can have a maximum of 1024 network segments. A UTP cable has a maximum distance of 100 meters, which is equivalent to 328 feet.
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