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Networking Fundamentals : Assignment

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Added on  2020-05-16

Networking Fundamentals : Assignment

   Added on 2020-05-16

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Networking FundamentalsAssignmentInsert Authors Name/s per 1st Affiliation (Author)(Affiliation): dept. name of organizationorganization name/ acronyms City, CountryE-mail adressKeywords—WAN, LAN, network cabling, network topologyI.INTRODUCTIONArr company, based in Melbourne has its head officeslocated there on one building with different floors withdifferent departments occupying different floors. Further, thecompany has offices in different geographical locations that arenot more than 70 kms away from the head office for a total ofsix offices. This paper is a design solution that will enable allemployees on the six different offices with most userrequirements are met by servers located in their respectiveoffices. However, the employees need to communicate withdifferent offices to exchange files, use the intra net, and for fore-mail, therefore a wired network will be sufficient. This paperdescribes and details the design for a network that includes alocal area network (LAN) and a wide area network (WAN) tomeet the needs and requirements of the office; the design willbe made in such a way as to keep the costs down, following thebasic principles and rules of networking. Q1 WANDESIGNThe company has six different offices within theMelbourne CBD and surrounding suburbs, with the maximumdistance between any two offices being 70 kms. The concernsand issues to consider when designing the WAN include costs,latency, uptime, security (very important), lead time to increasethe capacity on existing circuits and to implement new circuits,jitter, and packet loss. These concerns mainly relate to filetransfers, sharing, and exchange between the different offices.The different branches will also need to communicate witheach other using e-mail, and so require Internet connectionwith reliable up-times. The concerns with the Internet includeuptime, security, latency, costs, packet loss, lead times forimplementing new circuits and lead times for increasing thecapacity of existing circuits; jitter is another concern [1]. Withthese concerns in mind, the proposed WAN network designwill tackle these concerns while at the same time meeting therequirements of the users. In order to ensure security and file integrity during filetransfers, the WAN will be designed with a VPN (virtualprivate network) [2], based on the MPLS (multi protocol labelswitching) [3]. The MPLS VPN has been chosen as the defaultmethod for the WAN because it is a highly flexible way forrouting several network traffic types and data transport, withthe MPLS being the backbone. This will ensure high latencyand security fr the network, as well as tackle jitter problems[4]. The MPLS type to be used is the pseudo wire (point topoint) MPLS VPN that will use VLLs (virtual leased lines) toprovide L2 (layer 2) point to point connections between thedifferent office sites [5]. This type of MPLS has been chosenbecause it can have TDM, ethernet, and ATM framesencapsulated within them. Remote users will connect throughthe VPN IPSec protocol and will connect via remote dial up[6], such as workers on the move. The design is shown below;Fig IQ 2 LAN DESIGNFor the main office, there are three top floors in onebuilding in the Melbourne CBD with three departments;marketing that has 20 work stations, general support with 32work stations, and sales that has 38 workstations. The concernsfor the head office, and indeed other offices, is security, costs,latency, and flexibility in the LAN network. To cater to theissue of costs, instead of physical LAN network connecting allthe floors. The limitation of physical LANs is that scalabilitybecomes a challenge, and adding physical devices such as
Networking Fundamentals : Assignment_1

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