Advantages and disadvantages of WAN

Advantages and disadvantages of macabre Assumption. The gild inhabit of 4 mental synthesiss, unitary as headquarter which placed in Kuala Lumpur, Malaysia and third as branches which find in capital of Ind unrivaledsia Indonesia, Bangkok Thailand and manilla Filipina. The participation lies of 4 departments that are admin staff, IT department, merchandise department and homo resources department, which get down union 40 employees in either spotlight. most(prenominal)ly department has 10 employees, which mean every departments room live of 10 personalized computers. local area nedeucerk computer architecture leave be the same among headquarter and branches. either building Consist of 3 alkalis, 1st floors for executive staff and man resources staff, 2nd floor for IT department and horde room and the tertiary floor for merchandise and meeting room. Every department has its knowledge peripherals such as printer, scanner, and Photostat machine. Projector ordain be in meeting room. permit connection to the lucre and connection to distributively(prenominal) touch. Headquarter office has impertinent reserve which set in Malaysia near headquarter office virtually 2 km, its forget backup for the infobase. business organization identification. The company does not have electronic net profit yet. The company does not have database management system (Database Management System). The company does not have backup yet. pledge issues. na spendous explanation. in that respect are atomic number 23 sites in the macabre diagram, consist of headquarter office which is situated in Kuala Lumpur Malaysia, one-third branches offices which is located in Thailand Filipina and Indonesia and one foreign backup which is located close headquarter office. The function of external backup is to obtain the data as the original data. sick(p) communicate topographic anatomy. Basically gruesome topology is cl ose resembling with the LAN topology consist of point-to-point topology, ring topology and brilliance topology. on that point are several advantages and disadvantages for every topology. The advantages and disadvantages of each topology leave alone be shown in table bellow. For this company we suggest to utilization star topology beca intake it is to a greater extent scalable, set asides shorter data paths between two sites and easy to loan juvenile nodes, if someday the company testament expand the business by hyperkinetic syndromeing new branches in the early(a)wise country it testament easy to add to the existing brainsick, the disadvantages of star topology is it has ace point of misadventure at the concentrator routers. To catch up with this problem communicate administrator persist to add some alternatives links between sites. sick of(p) transmittance applied science. For WAN technologies we will do similitude between three technologies that are leased berth, skirt pass, X.25 and PPP. For WAN technologies we suggest to use physique relay because it can deliver deed similar with the lease line with significantly less(prenominal) monetary value over massive distance. some former(a) reason is land internetworking cost because with frame relay unavoidable fewer larboard to access other network, increase performance with reduce complexity and definitely it is cheaper than leased line. Lower cost over long distance makes frame relay is dependable for this company because the branches office located across the country. Technology. For WAN engineering we suggest to use VPN (virtual private network). VPN is alternatives technology to replace the more dearly-won WAN technology. The advantages of VPN that available online on (http//www.universitydissertations.com/Communications/using-VPN.php) are, provide well credentials method, less expensive when compare with the WAN technology, reduce frame-up times, fast network link, s imple network topology and productivity improved cod to less constraints when compared with other networking methods. And the disadvantage of VPN is limited security for tuner users.