In CCA 610: Cloud Services and Technology, you assumed the role of an IT analyst at BallotOnline, a company providing electronic voting solutions worldwide. Your proposal to begin migrating systems to the cloud has been approved.BallotOnline has now initiated preparations for the cloud deployment. The company decided to start with deeper investigations of crucial technologies enabling cloud computing. You became acquainted with the basics of these technologies in CCA 610. In this project, you will conduct more in-depth investigation of cloud networking, which makes cloud connectivity on-demand operations possible. You need to have a good understanding of this as you prepare the BallotOnline network for migration to the cloud as well as designing the appropriate network infrastructure in the cloud for BallotOnline.To do that, you will assume the role of a BallotOnline network engineer. You will explore the network protocols that enable the company and its customers to connect to the cloud, as well as technologies making it possible to create on-demand in-cloud virtual networks into which the cloud resources will be deployed.You will conduct two lab experiments exploring the TCP/IP protocols and software-defined networking. You will also perform a subnetting task to demonstrate your understanding of TCP/IP network addressing. Your final deliverable will be the technical report describing your findings and explaining the use of these technologies for BallotOnline’s cloud deployment.
In this step, you will establish an understanding of networking concepts and terms. It will help the recipients of your technical report, including BallotOnline’s technical management, to become familiar with networking vocabulary and definitions. You will start by reviewing basic networking concepts such as local area network (LAN), Ethernet, and packet switching—the technique of splitting transmitted data into smaller portions and transmitting them separately. Splitting data into packets, transmitting the packets reliably, and reassembling the data is performed by networking software. It is important to know about basic networking concepts since they serve as the underlying technology for cloud computing. This will ultimately prepare you to submit your technical report for this project. (http://intronetworks.cs.luc.edu/current/html/intro.html)Networking software follows the popular model of the layered design of network protocols, with each layer using the functionality of the layer below it and implementing new functionality to be used by the layer above. The technical report should include the popular internet suite of protocols—TCP/IP. Application protocols such as HTTP or SMTP are implemented in layers above TCP/IP. (http://intronetworks.cs.luc.edu/current2/html/tcpA.html?highlight=transmission%20control%20protocol)Other basic networking concepts include Domain Name Service, network firewalls, and Network Address Translation. As the network engineer for BallotOnline, you know that these protocols play an important role in enabling cloud computing.
The Internet Protocol (IP) is the workhorse of today’s internet connectivity. As the network engineer for BallotOnline, you know that today’s cloud computing is built on top of IP. Most communication between systems in the cloud is done using this protocol.IP employs the technique of packet switching, which breaks the data to be transmitted into smaller parts, called packets or datagrams, that are sent over the network independently. Understanding IP is crucial to designing and maintaining cloud deployments, which are provisioned within virtual IP networks and accessed via global internet. You will review the basic elements of IP protocol and include their brief discussion in your technical report.Network devices have a network address to allow other devices to connect to it. The network addresses used in IP are called IP addressing. BallotOnline will need IPv4 addressing to be able to provide network addresses to a cloud system and to create a virtual network in the cloud.Every system on the network must have an IP address. The assignments of IP addresses to the network systems can be done manually or dynamically through a Dynamic Host Configuration Protocol (DHCP) server. As the network engineer for BallotOnline, you know that manually assigning IP addresses is time-consuming and should only be used on a small number of systems where the IP address will not change frequently. (http://intronetworks.cs.luc.edu/current/html/ipv4.html#dynamic-host-configuration-protocol-dhcp)Because numeric addresses are not human-friendly, a domain/machine naming convention defines human-readable names for internet hosts. An internet-based service called DNS (Domain Name System) provides translation between the IP addresses and the domain names. In general, people will use the domain names when addressing a system on the internet instead of using its IP address. You will need to explain in the technical report how DNS is used alongside IP addresses. As the network engineer for BallotOnline, you also know the importance of IP routing, the mechanism used to route the IP packets across the internet from the sender to the recipient. IP routing of IP packets is accomplished by network routers, which determine the next destination for each packet and are able to learn new routes. (http://dtucker.cs.edinboro.edu/IPRouting.htm) (https://www.learncisco.net/courses/icnd-1/lan-connections/packet-delivery-process-at-l3.html)
As robust as the IP protocol is, it does not perform the actual transmission of the data. In this step, you will investigate the network protocol called Transmission Control Protocol (TCP), responsible for creation, reliability of delivery, and proper assembling of data packets. In addition to IP, TCP is also widely used on the internet, especially for any network communication where it is essential to confirm receipt of the transmission. Many of the network protocols used to implement cloud computing use both TCP and IP. You will review TCP’s workings and discuss them in your final technical report. In general, there is no guarantee that a data packet will reach its destination. Packets can get lost or corrupted during transmission, and there are network applications where you need assurance that the packets have reached their destination. To achieve reliability, TCP establishes connections between communicating hosts, using port numbers to refer to applications on these hosts. Then, packets are created, sequenced, transmitted, acknowledged, and retransmitted if missing or containing errors. Finally, at the destination, they are reassembled into the original messages. To synchronize the flow of packets between sender and receiver, and avoid packet congestion in case of varying speeds, TCP uses sliding windows for packets remaining in processing at a given time, at both the sender and receiver ends. (http://intronetworks.cs.luc.edu/current/html/slidingwindows.html#sliding-windows)
One of the drawbacks of IPv4 is the maximum number of network devices it can support. IPv4 addressing uses a 32-bit network address. This allows for 232, or a little over 4 billion devices. However, today there are significantly more devices on the internet. Even though the more robust IPv6 version has been introduced and efforts are underway to assure wide adoption, IPv4 is still widely used. One method used to more efficiently use the IPv4 network addresses is a technique to optimize the addresses by splitting them into network addresses and host addresses within designated networks.
You will need to take advantage of IP address splitting so that you can efficiently use and allocate the IPv4 network addresses that have been assigned to BallotOnline.For a given large network, rather than addressing all the hosts using the host part of the address, subnetting allows for splitting the network into several smaller ones by borrowing the host part bits and adding them to the network bits (http://intronetworks.cs.luc.edu/current/html/ipv4.html#ipv4-subnets ).
It supports efficient management of local networks composed of multiple LANs. In this step, you will investigate subnetting conventions and discuss them in your final report in order to lay ground for the use of subnets by BallotOnline.As the network engineer for BallotOnline, you know that subnetting a network into several smaller and variable-sized networks will be best for the organization’s needs.
BallotOnline has been assigned a network address block by the Internet Assigned Numbers Authority (IANA). ( https://www.iana.org/ )Because BallotOnline has several offices around the world, you will need to subnet this network address to assign just the right number of addresses to each office location based on the number of systems at that office location. The following is the network address assigned by IANA and the number of offices along with their sizes:
18.104.22.168/24 subnetted to 16 subnets and provide information for subnets #1, #4, #5, and #16
Your task is to create the appropriate number of subnets with the right size to optimize the network. Your technical report should include Classless Interdomain Routing (CIDR) notation, which allows for specifying a variable-length network as part of the IPv4 address, leaving the rest for addressing hosts within the network. ( https://opensource.com/article/16/12/cidr-network-notation-configuration-linux )
***Network address assigned by IANA and the number of offices along with their sizes***
+++Submission for Project 1: Subnetting+++
The first interim deliverable for Project 1 is for you to learn about subnetting and demonstrate that you know how to do this.
22.214.171.124/24 subnetted to 16 subnets and provide information for subnets #1, #4, #5, and #16
The deliverable is for you to provide the following information for each of the subnet identified (there are four of them for each problem):
You will also need to show the calculation on how you get your answers.
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