Objective of the Proposal
Networking is defined as the process of interconnecting set of computing devices that are used for the purpose of communicating and much more sharing of information and resources on the same platform (Brandley, 2017).during the network implementations many organizations may opt to use different designs in designing their office or firm network. This report is proposal that is implemented on the basis that the ITech is wishing to replace the network in existence with an advanced and improved on that will satisfy all the needs of the company in terms of the performance (Long, 2010).
The main objectives of this proposal are highlighted as indicated here below.
- The main idea for ITech is considerations of future scalability of the network (Coleman, 2012).This network design to be created have to accommodate the need of additional of equipment’s if need be arises in future in where we will have to do redesign the network again from scratch.
- The other objective is how it will be easy in managing the network. The idea behind this is that the design should be developed in a way that it will be easy to troubleshoot in situations where problems are experienced.
- Last but not least is the network enhancing an environment that is more secure for the operations of ITech on the way it renders it services to its customers and the adjacent between the offices in the given buildings.
The idea behind this proposal is doing an analysis that is through the use of IT infrastructure components, the need of why ITech is designing the network, the 3-layerered hierarchical network design, dedicated server, Cloud-based design, and the simulation of the data center using the proposed network design for ITech.
ITech is a company that deals with computer hardware’s and software’s and have offices in different buildings that are adjacent to each other and need to use the same network in communicating and sharing information and resources. The company have more than 2000 workstations in all the buildings. The company also have a data center that help in data monitoring in all the buildings. At the data center the company has mail servers, the web-servers, domain name servers (DNS) and others. The need for designing a new network in ITech is because the existing network design is poorly and not efficient in terms of performance.
In the infrastructure of IT there are a lot of equipment’s that are used in facilitating the good design of a network in many organisations in different ways. The following Components will be used designing the Network of ITech Company.
Some of the networking hardware devices to be used by ITech are as described in the table below.
Devices |
Functionality |
|
1 |
cable |
This are the media transmissions that are used for connecting the devices in networking over the network. In this case the Ethernet cable will be used in connecting the backbones of the network and the ITech layers of the designed network. |
2 |
Router |
This is the device used in connecting the ITech local area networks from the different adjacent buildings. Router provides the access to external connections such as where we use the internet in situations of cloud-based approach. |
3 |
Switch |
For achievement of the scalability and the objectives, the switch will enhance how flexible and scalable the network will be during configuration. |
4 |
Servers |
The servers are used for enhancing the storage and sharing of the network resources in ITech Company. |
5 |
WAP device |
The wireless Access Point devices are used for broadcasting the WI-FI signals across the ITech company where many users can access the network using wireless connections. |
6 |
Access Devices |
These are the communicating devices that uses the network for communications and they may include things like Desktops (PCs), mobile phones, IP phones and other many devices |
In software the platforms behind this components are such as the Operating systems (OS) this may be like the NOS which is used by servers for management and accessibility of resources. In this scenario of ITech the network design entirely will depend much on the described components of IT Infrastructure for any organization to be successful on any design of the network. For the hardware each and every component may have system software that manages it and which helps in determination of the entire ITech network performance.
ITech Company Overview
In understanding the 3-Layered hierarchical model is network design where there is break-down of the network in 3 layers. In each and every layer they perform specific functions which simplifies the design of the network and hence it makes it easy in scaling and managing the network (CISCO, 2014). The 3 layers that form the hierarchical model are as explained in the diagram below.
- Core layer- offers the connections between the distribution layers to other local area networks in ITech.
- Distribution layer- connecting the components of access layers by enabling the connectivity of access layer to services
- Access Layer- offering provision direct to the end-user who is connected to the network.
The proposed network design for ITech Company should consider using this network design model. The isolation of the network layers make it easy for Itech in managing the entire network as well as enhancing the extensibility in future.
The designed network is not efficient, scalable and very hard to manage. The reason behind all these is because the current network is on the model of the Flat Network design. This has made the network to be more vulnerable to issues and incase of network failure the entire network falls.
The future network design of ITech as proposed will have a clear definitions of the components of network structure. The idea here is designing the network in terms of differentiated blocks in performing specific tasks. The design will be based on the use of the three-layered hierarchical architecture as explained in this anticipated logic design. This model will help in simplifying the entire network, rendering it to be more flexible, scalability, and very easy to manage (Cisco, 2013).
ITech Company has been described to offices in at least five buildings. The data center is located on one of the building and it is adjacent to the other network resources to other buildings hence making the geographical scope requirement of the ITech network to be Many to many. This can be explained using the following.
This layer consists of the PCs, phones, Wireless devices, printers and others. This layer will be used in connecting the devices in the network and managing the communication modes between the end-users devices in the network (CISCO, 2014). The devices are connected using switches which are linked between the DL of the network design. The figure below an explanation of an Access Layer logical diagram set up.
In this layer we interface the link between the other two layers. The switching and routing occurs in this layer where the users request are forwarded to their destinations to be processed.
In this layer the devices such as routers and switches are used in enabling the functions of the network like packet routing for the end-users to be able in accessing both the internal and external network services. This layer is scalable and the geographical design diagram of the ITech Company will be as follows as structured.
IT Infrastructure Components
The use of hierarchical layered model will allow additional of network devices and much allowing a lot of expansion in future if need be as the access layer make it possible by the facts that more distribution layer switches and core layers switches that is added in accommodating more end users (Guide, 2011) .
There are several servers that are used in the network for sharing and storage of resources (Hope, 2017). The server has played a major role for sourcing the information of the whole ITech Company. Some of the dedicated servers are as explained here below.
- DNS Server- a server that matches all the corresponding domain names with their associated internet protocol addresses within the ITech company as they are offered by the ISP (Rouse, 2009).
- File Server- this type of server stores and manages all the transfers of all data files across the ITech network.
- Web server- this server uses HTTP for providing responses to the users when any query for web-page that is hosted in the server. In this case of ITech the web server domain is “ITech.org.au”(Margaret, 2017).
- DHCP server – this is used for assigning the end-users and all other devices on the networks their respective addresses.
- Mail server- this used for managing all email of users in the transfer that is across the network.
The diagram below shows the logical diagram of the network design with the dedicated server design of the ITech network design proposed.
Figure 6 Logical Diagram
The servers of ITech will be located on the data center where each and every LAN will be configured in the manner that it will not affect the operations of the other local area networks.
The appropriate IP address scheme of ITech will use the Class B of the IP address (Subnetting, 2010). Class B supports IP addresses with scalability and flexibility features. The table below shows how the IP addresses will be masked in the ITech Company.
Many are times that we get confused on which cloud-based design to use. Hosting the data center on the cloud may be inevitable and hence this will make the company to search for hosting elsewhere for backup as it will be reliable, accessible and much more secure. There are two most know company for hosting that is the Microsoft and Navisite.
Microsoft is known for its cloud-based package known as Azure. It offers provision of services such as the storage devices. DM, messaging and CDN has been made possible for ITech servers as it will be secure. Azure is scalable and most reliable used for controlling the Ms AZURE fabric hence ensuring the services and platforms that are laid for delivering quality data center services (Macken, 2016). The diagram below how Azure works. (Barracuda, 2017)
Navisite organization offers provision to cloud services to organization like ITech by managing the applications and hosting services for Organizations (Navisite, 2017). Navisite provides services such as the Infrastructure as a service (IAAS) which is used to enhance the high speeds and flexibility for business operations performance.
Personal computers are used as the access layers end-user devices. Here the DHCP server is done some configurations for assigning the IP addresses to all communicating devices in the network in an automatic way (gokhankosem, 2011). The DNS server will be used in matching the corresponding web files that are hosted on the web server while in real sense the web server is used for hosting the ITech website and all its applications (packettracernetwork, 2015). From the scenario explained above in the diagram we can view the web files that are hosted on the web-server in the network (Meena, 2017).
In assigning the other devices we can do it on the DHCP by following the direct steps and following the required and stated IP addresses from the table of the IP addressing details.
After the webserver of ITech is assigned an IP address by the DHCP server the we can click on services tab and select the HTTP services which will help us in creating a web-page named “www.ITech.org.au”As it is clearly shown in the figure below.
Once we are done on creating the webpage we have to click the DNS server and select the service panel as shown in the diagram below.
The window above provide the webpage created “www.ITech.org.au” where the webserver name and the Ip address assigned will be added to the list of the webservers available in the networks and here we have to turn the DNS on for the complete configuration to take place.
We can try to see if we can access the webpage in other machines. The procedure is opening the desktop tab in any workstation and selecting the web browser. After opening the window then type on the URL the webpage “www.ITech.org.au” and the click go so that we can try to see if we will be able to access it.The above results illustrates that the client is able to access the webserver from their machines with the condition that they are within the same network
The recommendations can be explained in so many ways but it is my wish that ITech will be adapting the use of three-layered hierarchical network design.
Conclusions
In conclusion much have been discussed and therefore it has been made clear that the proposed ITech network design will be easier when it comes to managing and much more it will offer the scalability and flexibility features that will help in future.
References Lists
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