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FIT3165 Computer Networks - Monash University

Part-I:

Introduction

The network configuration acknowledges essential occupation in correspondence which share the data and ignore on the huge geographic districts. The case study on "Return2Fender Transport Company" requires to relate the spot of business over a wired Local Area Network (LAN) and Wireless LAN. At present this affiliation has 700 office specialists in Sydney, 200 workers in Melbourne and 100 delegates in Perth, Adelaide, Brisbane. The remote connection is accessible in each instinctive media work area which fit office specialists. In light of business improvement, the Melbourne branch has thought to develop the measure of workers generously. This report examines the recommendation for Return2Fender Transport Company which melds the system structure in remote and wired system.

Proposal (RFP) to design a new Wired & Wireless Local Area Network LAN and Backbone wide area network (WAN) network design report.Part-I: A request for proposal (RFP) to design a new Wired & Wireless Local Area Network LAN and Backbone wide area network (WAN) network design report.

Introduction

The network configuration acknowledges essential occupation in correspondence which share the data and ignore on the huge geographic districts. The case study on "Return2Fender Transport Company" requires to relate the spot of business over a wired Local Area Network (LAN) and Wireless LAN. At present this affiliation has 700 office specialists in Sydney, 200 workers in Melbourne and 100 delegates in Perth, Adelaide, Brisbane. The remote connection is accessible in each instinctive media work area which fit office specialists. In light of business improvement, the Melbourne branch has thought to develop the measure of workers generously. This report examines the recommendation for Return2Fender Transport Company which melds the system structure in remote and wired system.

Task -a) Project requirements brief can be derived from Objectives and Scope of Work section of the RFP. A requirement brief is usually an itemized list of the client's requirements derived from the RFP.

Task -a: Objectives and Scope of Work
The primary objective to design network for this case study is given below
• Network should support expand in Melbourne office for both wired and wireless
• Design wired and wireless LAN for other branches
• Connect head office branch with other offices vis WAN
• Network design should support business applications such as email and web for staff desktop which has high resolution video conferencing using VoIP (Voice over Internet Protocol)

Task -b) Wired & Wireless LAN design for a typical floor, which includes the following information: -

Task -b: Wired & Wireless LAN design
Wired LAN design
(i) Computer desktop layout plan with network topology for a typical floor level.

A Local Area Network (LAN) has a capability to connect the group of computers such as office building, home and schools. This network can share the resources such as printers, files, games and emails. A LAN can use the Ethernet or Wi-fi to connect the network devices together. The Wireless LAN (WLAN) can operate on one or more wireless access points and network devices can connect with in the range of wireless signal. The access point can change to manage the traffic flow in the network and it is also act as interface between local network to outside networks. The ethernet LAN has one or more network devices such has hubs, routers or switches to connect each individual device through Ethernet cables. The Both wireless and wired LAN can connect the network devices directly using peer-to-peer or ad-hoc connections instead of central device. Most of the business or enterprises and home network can use both wired and wireless LAN due to low cost and requirement of network speed. This network can setup with fiber optical cable to connect each network devices.

The network topology plays vital role to set up the network layout. The network devices should arrange in order to maintain network and work properly. The order or arrangements of the network devices depends on the capabilities of network hardware and data transfer modes. The above two factors subdivided into two in network topologies are physical and logical topology. For our case study we suggest physical star topology and layout of this topology of the transmission media not required to maintain star pattern and required to follow the physical properties and characteristics that each device in the network should connect by individual cable to central point. The physical star topology has multiple cables to connect each device which are attached to central device. The network devices attached using 10 Base-T hub which is represented has twisted pair cable cat 6a.

Figure 1: Wired LAN network devices

The topology of selection for this case study is star topology which can easily install and wire and there is no disturbance in the network when we connect or remove the network devices. We can easily detect the faults in this topology and remove fault parts separately to work the network. This topology has some drawbacks are need more cable to connect each device to central network device instead of linear topology. In case any of the network devices such as hub, switch or routers failed the connected node also disabled. The star topology is more expensive than bus topology due to central hub. This topology uses the twisted pair cable which has various categories but for our case study we use Cat 6E (Enhanced) which has 4 number of pairs and maximum data speed can be 1000 Mbps. The common cable use in this is 1000 Base T 100 m. The Cat 6 E designed for double transmission which has 500 MHz by wrapping with foil shielding and Ethernet speed will be 10 Gigabit and maximum length of the cable is 100 meters.

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(ii) Switch/Wireless Access Point location

Switch Specification

In wired LAN we have various switches available in the market which are differentiate in terms of form factor, physical configuration, number of network ports includes Power Over Ethernet (POE) and protocol to routing the packets. The selection of the switch features of hardware ca support the requirement of network. When we design a network, we must select the proper hardware and requirement and growth of the network in the enterprise network.

The router and switches are plays critical role in the communication. According to case study we suggest the Data Center Switch is build based on switches which promote the scalability of the network infrastructure, transport flexibility and operational continuity. The data center switch series is Cisco Nexus and Cisco Catalyst 6500 Series. The series of the switch can support layer 2 , layer 3 and modularity and speed will be up to 11.4 Tbps. It can support 528X1G and 180 X 10 G port and also support SD - access and Cisco DNA.

Figure 2: Switch and Access Point in the network

Access Point Specification

For the above network design, we select Cisco Aironet 3600 Series Access Point which can deliver the signal three times to cover the area than tablets, laptops and smartphones. Most of the industrials 4X4MIMO has three spatial to access the point of deliver. Th reliable connection and high speed which provide 450 Mbps. This series Cisco Aironet 360 is support and maintain modular platform. The Cisco Aironet 3600 Series includes Cisco ClientLink 2.0 to boost performance and range for clients and includes Cisco CleanAir spectrum intelligence for a self-healing, self-optimizing network.

Task -c) Recommendation and justification of the structured cabling selected, Access Point (AP), Switches i.e. distribution layer, building backbone cabling and media type to be used for a typical floor level and for the connection across the road to the existing LAN.

Task -c: Recommendation and justification of the structured cabling selected
The ethernet LAN has one or more network devices such has hubs, routers or switches to connect each individual device through Ethernet cables. The Both wireless and wired LAN can connect the network devices directly using peer-to-peer or ad-hoc connections instead of central device. The star topology and layout of this topology of the transmission media not required to maintain star pattern and required to follow the physical properties and characteristics that each device in the network should connect by individual cable to central point. The physical star topology has multiple cables to connect each device which are attached to central device.

The network devices attached using 10 Base-T hub which is represented has twisted pair cable cat 6a. The star topology is more expensive than bus topology due to central hub. This topology uses the twisted pair cable which has various categories but for our case study we use Cat 6E (Enhanced) which has 4 number of pairs and maximum data speed can be 1000 Mbps. The common cable use in this is 1000 Base T 100 m. The Cat 6 E designed for double transmission which has 500 MHz by wrapping with foil shielding and Ethernet speed will be 10 Gigabit and maximum length of the cable is 100 meters. We recommend Data Center Switch is build based on switches which promote the scalability of the network infrastructure, transport flexibility and operational continuity. The data center switch series is Cisco Nexus and Cisco Catalyst 6500 Series. The series of the switch can support layer 2 , layer 3 and modularity and speed will be up to 11.4 Tbps.

It can support 528X1G and 180 X 10 G port and also support SD - access and Cisco DNA. Cisco Aironet 3600 Series Access Point which can deliver the signal three times to cover the area than tablets, laptops and smartphones. Most of the industrials 4X4MIMO has three spatial to access the point of deliver. Th reliable connection and high speed which provide 450 Mbps.

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Task -d) List of equipment and the wireless and wired specifications, technical and cabling specifications.

Task -d: List of equipment and the wired Network Design

• Cable - Cat 6 E (Enhanced)
• Switch - Cisco Nexus and Cisco Catalyst 6500 Series
• Access Point - Cisco Aironet 3600 Series Access Point

Task -e) You need to outline design rules for a computer LAN, WLAN&WAN network and describe it in detail.

Task -e: Design rules for a computer LAN, WLAN&WAN network
(i) Steps in the network design process

The design network process has following steps
• Understand the requirements of customer
• Analysis of existing Network
• Design new network and find the solution for network topology
• Plan for network implementation
• Construct the network prototype
• Document the network design completely
• Implement the network design
• Verify and monitor the network implementation and modify the network if required.
(ii) Methods used to estimate of network performance
The following methods are used to estimate the network performance
• Monte Carlo
• CE (Cross Entropy)
• VM (VarianceMinimization)
• Chib
• MCIS (Markov Chain Importance Sampling)
Here Mante Carlo method will be high estimate and accuracy to calculate the network performance.
(iii) Proposed floor plan, assumptions, justifications and calculations.

Date Rate calculation for Wireless LAN and Wired LAN given below

Internet Access Rate which depends on file Size

(iv) Assumptions of backbone connectivity using wired/wireless media
The following assumptions are considered in the backbone connectivity using wired and wireless network
Wired LAN:
• No hidden terminal- All host can share the resource to another one.
• No packet Capture - All nodes has same received powers which are identical
• Saturation Conditions - Each station in the queue is non empty.
Wireless LAN:
• Do not have any valid assumptions in the Wireless LAN
• Wireless connection can achieve using proper tuned antenna.

(v) IP addressing strategy for new buildings

For this case study we can select the Class A 10.0.0.0 IP addressing strategy for one server at a time to maintain in all offices.

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Part-II: A review of computer networking cable types and characteristics used in Part-I.

Task -f) Compile a catalog of at least three cable types together with technical, numerical & characteristics standards of the cables.

Task -f :Catalog of Cable types used in Part-I

The following table shows the cable types used in the Part - I network

Task -g) Describe the examples of all the best application and use of these recommended cableused in your Part-I network infrastructure design and explain why the technical characteristics of that cable make it best suited for those applications in your design.

Task -g: Best application and use of these recommended cables used in your Part-I

The best usage of Twisted-pair cables is used in telephone lines which gives voice and data stations. The DSL lines that are used by the telephone associations to give high data rate affiliations also use the high-exchange speed capacity of unshielded injury pair joins. At the present time twisted pair interface is comprehensively used in CCTV applications. Impedance matcher is used for impedance planning among connection and contraptions.

Task -h) Describe the physical support of these cables and their technologies and network infrastructure installation requirements in Part-I Horizontal and Vertical structured cabling for LAN & WAN and WLAN Network infrastructure.

Task -h: Physical support of cables and their technologies and network infrastructure installation requirements in Part-I
The following requirements are important to support the network cables and their technologies for network infrastructure.
• Size of the network
• Band width of network
• Types of business environment
• Set up cost
• Hiring Network contractors to set up network

Task -i) Describe all the relevant hardware tools and testing tools required in the use of each cable type for Part-1 design.

Task -i: Hardware and testing tools for cables used in Part - I

Wire crimper

A wire crimper is a one of the best testing toolswhich can attach in the media connectors to the end of cable. An example wire crimper attaches to RJ -45 connectors on Twisted Pair cable, and we can use various types of cabling to attach the wire crimper tool. The hardware tools are given below
• UTP cable (Category 6 E)
• RJ-45 connectors
• Wire stripper
• RJ-45 crimping tool

Conclusion

The network configuration acknowledges essential occupation in correspondence which share the data and ignore on the huge geographic districts. The case study on "Return2Fender Transport Company" requires to relate the spot of business over a wired Local Area Network (LAN) and Wireless LAN. In light of business improvement, the Melbourne branch has thought to develop the measure of workers generously. This report examines the recommendation for Return2Fender Transport Company which melds the system structure in remote and wired system. This report discussed about wired and wireless LAN network design, network floor layout for both wired and wireless LAN, specification for switches and access point in the network. Also discuss the Wide area network to connect the head office, IP addressing strategies.

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